Tag: 131.17

Comprehensive chemical characterization of dissolved organic matter in typical point-source refinery wastewaters was written by Li, Yuguo;Wu, Baichun;He, Chen;Nie, Fan;Shi, Quan. And the article was included in Chemosphere in 2022.HPLC of Formula: 16096-32-5 This article mentions the following:

In petroleum refineries, the elec. desalting, distillation, and stripping processes could generate large amounts of wastewaters that contain toxic substances. In this study, eight wastewater samples were collected from the three typical refining processes for comprehensive chem. characterization of the dissolved organic matter (DOM) using excitation emission matrix fluorescence spectroscopy, gas chromatog.-mass spectrometry, and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Results showed that protein-like components and benzene were ubiquitous in all these wastewaters. Oxygen-containing volatile organic compounds had higher contents in crude distillation and stripping wastewater than those in elec. desalting wastewater. Among the three refinery processes, mol. composition of DOM in the stripping wastewater had the highest complexity. The Ox and O_xS_y class species assigned from the neg.-ion electrospray ionization FT-ICR MS were dominant in all wastewaters. The O_xS₂ class species which were effectively removed during stripping treatment had highest relative abundance in stripping influent. These results are instructive to guide the development of ”divide and conquer” and would improve the treatment and management of refinery wastewater streams. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5HPLC of Formula: 16096-32-5).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. In addition to tryptophan, indigo, and indoleacetic acid, numerous compounds obtainable from plant or animal sources contain the indole molecular structure. It is used in perfumery and in making tryptophan, an essential amino acid, and indoleacetic acid (heteroauxin), a hormone that promotes the development of roots in plant cuttings.HPLC of Formula: 16096-32-5

Referemce:
Indole alkaloid derivatives as building blocks of natural products from聽Bacillus thuringiensis聽and聽Bacillus velezensis聽and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Palladium-catalyzed sequential acylation/annulation of indoles with acyl chlorides using primary amine as the directing group was written by Jiang, Guangbin;Yang, Guang;Liu, Xinqiang;Wang, Shoucai;Ji, Fanghua. And the article was included in New Journal of Chemistry in 2021.Electric Literature of C9H9N This article mentions the following:

An convenient strategy for the direct acylation/annulation of indoles was developed using Pd(0) as an efficient catalyst. The main feature of this protocol was the use of acyl chlorides as the acylating agents with the primary amine as the directing group. A variety of indolo[1,2-a]quinoxalines were readily obtained in reasonable efficiency and satisfactory yields with good functional group tolerance. Based on control experiments, a tentative catalytic mechanism was proposed. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5Electric Literature of C9H9N).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. Indole could be stereoselectively alkylated with chiral cyclopentyl sulfone reagent. They are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas.Electric Literature of C9H9N

Referemce:
Indole alkaloid derivatives as building blocks of natural products from聽Bacillus thuringiensis聽and聽Bacillus velezensis聽and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Nickel-catalyzed C3-alkylation of indoles with alcohols via a borrowing hydrogen strategy was written by Hu, Miao;Jiang, Yong;Sun, Nan;Hu, Baoxiang;Shen, Zhenlu;Hu, Xinquan;Jin, Liqun. And the article was included in New Journal of Chemistry in 2021.COA of Formula: C9H9N This article mentions the following:

An efficient method for the Ni-catalyzed C3-alkylation of indoles using readily available alcs. as the alkylating reagents had developed to obtain alkylated indole I [R = H, Me, Ph; R¹ = n-Bu, Ph, Bn, etc.; R² = H, 4-MeC₆H₄, 6-FC₆H₄, etc.]. The alkylation was addressed with an air and moisture-stable binuclear nickel complex ligated by tetrahydroquinolin-8-one as the effective pre-catalyst. The newly developed transformation could accommodate a broad substrate scope including primary/secondary benzylic and aliphatic alcs. and substituted indoles. Mechanistic studies suggested that the reaction proceeded through a borrowing hydrogen pathway. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5COA of Formula: C9H9N).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. Indole, also called Benzopyrrole, a heterocyclic organic compound occurring in some flower oils, such as jasmine and orange blossom, in coal tar, and in fecal matter.Indole was synthesized in moderate yield via an o-naphthoquinone catalyzed tandem cross-coupling of substituted aniline and benzylamine under aerobic oxidation conditions.COA of Formula: C9H9N

Referemce:
Indole alkaloid derivatives as building blocks of natural products from聽Bacillus thuringiensis聽and聽Bacillus velezensis聽and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Catalytic enantioselective synthesis of macrodiolides and their application in chiral recognition was written by Xiao, Wanlong;Mo, Yuhao;Guo, Jing;Su, Zhishan;Dong, Shunxi;Feng, Xiaoming. And the article was included in Chemical Science in 2021.Category: indole-building-block This article mentions the following:

New types of C2-sym. chiral macrodiolides are readily obtained via chiral N,N’-dioxide-scandium(III) complex-promoted asym. tandem Friedel-Crafts alkylation/intermol. macrolactonization of ortho-quinone methides with C3-substituted indoles. This protocol provides an array of enantioenriched macrodiolides with 16, 18 or 20-membered rings in moderate to good yields with high diastereoselectivities and excellent enantioselectivities through adjusting the length of the tether at the C3 position of indoles. D. functional theory calculations indicate that the formation of macrocycles is more favorable than that of 9-membered-ring lactones in terms of kinetics and thermodn. The potential utility of these intriguing chiral macrodiolide mols. is demonstrated in the enantiomeric recognition of aminols and chem. recognition of metal ions. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5Category: indole-building-block).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades. Moreover, it is known that it controls biofilm formation. However, the role of indole in the cell has not been fully elucidated.Category: indole-building-block

Referemce:
Indole alkaloid derivatives as building blocks of natural products from聽Bacillus thuringiensis聽and聽Bacillus velezensis聽and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Comprehensive chemical characterization of dissolved organic matter in typical point-source refinery wastewaters was written by Li, Yuguo;Wu, Baichun;He, Chen;Nie, Fan;Shi, Quan. And the article was included in Chemosphere in 2022.HPLC of Formula: 16096-32-5 This article mentions the following:

In petroleum refineries, the elec. desalting, distillation, and stripping processes could generate large amounts of wastewaters that contain toxic substances. In this study, eight wastewater samples were collected from the three typical refining processes for comprehensive chem. characterization of the dissolved organic matter (DOM) using excitation emission matrix fluorescence spectroscopy, gas chromatog.-mass spectrometry, and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Results showed that protein-like components and benzene were ubiquitous in all these wastewaters. Oxygen-containing volatile organic compounds had higher contents in crude distillation and stripping wastewater than those in elec. desalting wastewater. Among the three refinery processes, mol. composition of DOM in the stripping wastewater had the highest complexity. The Ox and O_xS_y class species assigned from the neg.-ion electrospray ionization FT-ICR MS were dominant in all wastewaters. The O_xS₂ class species which were effectively removed during stripping treatment had highest relative abundance in stripping influent. These results are instructive to guide the development of ”divide and conquer” and would improve the treatment and management of refinery wastewater streams. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5HPLC of Formula: 16096-32-5).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. In addition to tryptophan, indigo, and indoleacetic acid, numerous compounds obtainable from plant or animal sources contain the indole molecular structure. It is used in perfumery and in making tryptophan, an essential amino acid, and indoleacetic acid (heteroauxin), a hormone that promotes the development of roots in plant cuttings.HPLC of Formula: 16096-32-5

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Palladium-catalyzed sequential acylation/annulation of indoles with acyl chlorides using primary amine as the directing group was written by Jiang, Guangbin;Yang, Guang;Liu, Xinqiang;Wang, Shoucai;Ji, Fanghua. And the article was included in New Journal of Chemistry in 2021.Electric Literature of C9H9N This article mentions the following:

An convenient strategy for the direct acylation/annulation of indoles was developed using Pd(0) as an efficient catalyst. The main feature of this protocol was the use of acyl chlorides as the acylating agents with the primary amine as the directing group. A variety of indolo[1,2-a]quinoxalines were readily obtained in reasonable efficiency and satisfactory yields with good functional group tolerance. Based on control experiments, a tentative catalytic mechanism was proposed. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5Electric Literature of C9H9N).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. Indole could be stereoselectively alkylated with chiral cyclopentyl sulfone reagent. They are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas.Electric Literature of C9H9N

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Nickel-catalyzed C3-alkylation of indoles with alcohols via a borrowing hydrogen strategy was written by Hu, Miao;Jiang, Yong;Sun, Nan;Hu, Baoxiang;Shen, Zhenlu;Hu, Xinquan;Jin, Liqun. And the article was included in New Journal of Chemistry in 2021.COA of Formula: C9H9N This article mentions the following:

An efficient method for the Ni-catalyzed C3-alkylation of indoles using readily available alcs. as the alkylating reagents had developed to obtain alkylated indole I [R = H, Me, Ph; R¹ = n-Bu, Ph, Bn, etc.; R² = H, 4-MeC₆H₄, 6-FC₆H₄, etc.]. The alkylation was addressed with an air and moisture-stable binuclear nickel complex ligated by tetrahydroquinolin-8-one as the effective pre-catalyst. The newly developed transformation could accommodate a broad substrate scope including primary/secondary benzylic and aliphatic alcs. and substituted indoles. Mechanistic studies suggested that the reaction proceeded through a borrowing hydrogen pathway. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5COA of Formula: C9H9N).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. Indole, also called Benzopyrrole, a heterocyclic organic compound occurring in some flower oils, such as jasmine and orange blossom, in coal tar, and in fecal matter.Indole was synthesized in moderate yield via an o-naphthoquinone catalyzed tandem cross-coupling of substituted aniline and benzylamine under aerobic oxidation conditions.COA of Formula: C9H9N

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Catalytic enantioselective synthesis of macrodiolides and their application in chiral recognition was written by Xiao, Wanlong;Mo, Yuhao;Guo, Jing;Su, Zhishan;Dong, Shunxi;Feng, Xiaoming. And the article was included in Chemical Science in 2021.Category: indole-building-block This article mentions the following:

New types of C2-sym. chiral macrodiolides are readily obtained via chiral N,N’-dioxide-scandium(III) complex-promoted asym. tandem Friedel-Crafts alkylation/intermol. macrolactonization of ortho-quinone methides with C3-substituted indoles. This protocol provides an array of enantioenriched macrodiolides with 16, 18 or 20-membered rings in moderate to good yields with high diastereoselectivities and excellent enantioselectivities through adjusting the length of the tether at the C3 position of indoles. D. functional theory calculations indicate that the formation of macrocycles is more favorable than that of 9-membered-ring lactones in terms of kinetics and thermodn. The potential utility of these intriguing chiral macrodiolide mols. is demonstrated in the enantiomeric recognition of aminols and chem. recognition of metal ions. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5Category: indole-building-block).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades. Moreover, it is known that it controls biofilm formation. However, the role of indole in the cell has not been fully elucidated.Category: indole-building-block

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Comprehensive chemical characterization of dissolved organic matter in typical point-source refinery wastewaters was written by Li, Yuguo;Wu, Baichun;He, Chen;Nie, Fan;Shi, Quan. And the article was included in Chemosphere in 2022.HPLC of Formula: 16096-32-5 This article mentions the following:

In petroleum refineries, the elec. desalting, distillation, and stripping processes could generate large amounts of wastewaters that contain toxic substances. In this study, eight wastewater samples were collected from the three typical refining processes for comprehensive chem. characterization of the dissolved organic matter (DOM) using excitation emission matrix fluorescence spectroscopy, gas chromatog.-mass spectrometry, and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Results showed that protein-like components and benzene were ubiquitous in all these wastewaters. Oxygen-containing volatile organic compounds had higher contents in crude distillation and stripping wastewater than those in elec. desalting wastewater. Among the three refinery processes, mol. composition of DOM in the stripping wastewater had the highest complexity. The Ox and O_xS_y class species assigned from the neg.-ion electrospray ionization FT-ICR MS were dominant in all wastewaters. The O_xS₂ class species which were effectively removed during stripping treatment had highest relative abundance in stripping influent. These results are instructive to guide the development of ”divide and conquer” and would improve the treatment and management of refinery wastewater streams. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5HPLC of Formula: 16096-32-5).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. In addition to tryptophan, indigo, and indoleacetic acid, numerous compounds obtainable from plant or animal sources contain the indole molecular structure. It is used in perfumery and in making tryptophan, an essential amino acid, and indoleacetic acid (heteroauxin), a hormone that promotes the development of roots in plant cuttings.HPLC of Formula: 16096-32-5

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Palladium-catalyzed sequential acylation/annulation of indoles with acyl chlorides using primary amine as the directing group was written by Jiang, Guangbin;Yang, Guang;Liu, Xinqiang;Wang, Shoucai;Ji, Fanghua. And the article was included in New Journal of Chemistry in 2021.Electric Literature of C9H9N This article mentions the following:

An convenient strategy for the direct acylation/annulation of indoles was developed using Pd(0) as an efficient catalyst. The main feature of this protocol was the use of acyl chlorides as the acylating agents with the primary amine as the directing group. A variety of indolo[1,2-a]quinoxalines were readily obtained in reasonable efficiency and satisfactory yields with good functional group tolerance. Based on control experiments, a tentative catalytic mechanism was proposed. In the experiment, the researchers used many compounds, for example, 4-Methyl-1H-indole (cas: 16096-32-5Electric Literature of C9H9N).

4-Methyl-1H-indole (cas: 16096-32-5) belongs to indole derivatives. Indole could be stereoselectively alkylated with chiral cyclopentyl sulfone reagent. They are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas.Electric Literature of C9H9N

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles