Tag: 189.21

Asymmetric Synthesis of 3-Allyloxindoles and 3-Allenyloxindoles by Scandium(III)-Catalyzed Claisen Rearrangement Reactions was written by Lai, Zeng-Wei;Liu, Chuan;Sun, Hongbin;You, Shu-Li. And the article was included in Chinese Journal of Chemistry in 2017.Application of 773134-49-9 This article mentions the following:

Scandium-catalyzed asym. Claisen rearrangement reactions of 2-allyloxyindoles and 2-propargyloxyindoles provide a novel approach to diverse 3-allyloxindoles and 3-allenyloxindoles in excellent yields (up to 99%) and enantioselectivity (up to 99% ee) under mild reaction conditions. The scandium catalyst was derived from Sc(OTf)₃ and Pybox ligand. In the experiment, the researchers used many compounds, for example, Methyl 7-methyl-1H-indole-3-carboxylate (cas: 773134-49-9Application of 773134-49-9).

Methyl 7-methyl-1H-indole-3-carboxylate (cas: 773134-49-9) belongs to indole derivatives. Indole, first isolated in 1866, and it is commonly synthesized from phenylhydrazine and pyruvic acid, although several other procedures have been discovered. In addition to indole, the strain-release chemistry worked for numerous substrates including amines, alcohols, thiols, carboxylic acids, imidazoles, and pyrazoles.Application of 773134-49-9

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

Thermodynamic properties of alkyl 1H-indole carboxylate derivatives: A combined experimental and computational study was written by Carvalho, Tania M. T.;Amaral, Luisa M. P. F.;Morais, Victor M. F.;Ribeiro da Silva, Maria D. M. C.. And the article was included in Journal of Chemical Thermodynamics in 2016.Recommanded Product: Ethyl 1H-indole-3-carboxylate This article mentions the following:

The standard (p^o = 0.1 MPa) molar enthalpies of formation, in the crystalline phase, of Me 1H-indole-3-carboxylate and Et 1H-indole-2-carboxylate, at T = 298.15 K, were derived from measurements of the standard massic energies of combustion using a static bomb combustion calorimeter. The Knudsen effusion technique was used to measure the vapor pressures as a function of the temperature, which allowed determining the standard molar enthalpies of sublimation of these compounds The standard (p^o = 0.1 MPa) molar enthalpies of formation, in the gaseous phase, at T = 298.15 K, were calculated by combining, for each compound, the standard molar enthalpy of formation, in the crystalline phase, and the standard molar enthalpy of sublimation, yielding -(207.6 卤 3.6) kJ路mol^-1 and -(234.4 卤 2.4) kJ路mol^-1, for Me 1H-indole-3-carboxylate and Et 1H-indole-2-carboxylate, resp.Quantum chem. studies were also conducted, in order to complement the exptl. study. The gas-phase enthalpies of formation were estimated from high level ab initio MO calculations, at the G3(MP2) level, for the compounds studied exptl., extending the study to the Me 1H-indole-2-carboxylate and Et 1H-indole-3-carboxylate. The results obtained were compared with the exptl. data and were also analyzed in terms of structural enthalpic group contributions. In the experiment, the researchers used many compounds, for example, Ethyl 1H-indole-3-carboxylate (cas: 776-41-0Recommanded Product: Ethyl 1H-indole-3-carboxylate).

Ethyl 1H-indole-3-carboxylate (cas: 776-41-0) 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. In addition to indole, the strain-release chemistry worked for numerous substrates including amines, alcohols, thiols, carboxylic acids, imidazoles, and pyrazoles.Recommanded Product: Ethyl 1H-indole-3-carboxylate

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

Asymmetric Synthesis of 3-Allyloxindoles and 3-Allenyloxindoles by Scandium(III)-Catalyzed Claisen Rearrangement Reactions was written by Lai, Zeng-Wei;Liu, Chuan;Sun, Hongbin;You, Shu-Li. And the article was included in Chinese Journal of Chemistry in 2017.Application of 773134-49-9 This article mentions the following:

Scandium-catalyzed asym. Claisen rearrangement reactions of 2-allyloxyindoles and 2-propargyloxyindoles provide a novel approach to diverse 3-allyloxindoles and 3-allenyloxindoles in excellent yields (up to 99%) and enantioselectivity (up to 99% ee) under mild reaction conditions. The scandium catalyst was derived from Sc(OTf)₃ and Pybox ligand. In the experiment, the researchers used many compounds, for example, Methyl 7-methyl-1H-indole-3-carboxylate (cas: 773134-49-9Application of 773134-49-9).

Methyl 7-methyl-1H-indole-3-carboxylate (cas: 773134-49-9) belongs to indole derivatives. Indole, first isolated in 1866, and it is commonly synthesized from phenylhydrazine and pyruvic acid, although several other procedures have been discovered. In addition to indole, the strain-release chemistry worked for numerous substrates including amines, alcohols, thiols, carboxylic acids, imidazoles, and pyrazoles.Application of 773134-49-9

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

Thermodynamic properties of alkyl 1H-indole carboxylate derivatives: A combined experimental and computational study was written by Carvalho, Tania M. T.;Amaral, Luisa M. P. F.;Morais, Victor M. F.;Ribeiro da Silva, Maria D. M. C.. And the article was included in Journal of Chemical Thermodynamics in 2016.Recommanded Product: Ethyl 1H-indole-3-carboxylate This article mentions the following:

The standard (p^o = 0.1 MPa) molar enthalpies of formation, in the crystalline phase, of Me 1H-indole-3-carboxylate and Et 1H-indole-2-carboxylate, at T = 298.15 K, were derived from measurements of the standard massic energies of combustion using a static bomb combustion calorimeter. The Knudsen effusion technique was used to measure the vapor pressures as a function of the temperature, which allowed determining the standard molar enthalpies of sublimation of these compounds The standard (p^o = 0.1 MPa) molar enthalpies of formation, in the gaseous phase, at T = 298.15 K, were calculated by combining, for each compound, the standard molar enthalpy of formation, in the crystalline phase, and the standard molar enthalpy of sublimation, yielding -(207.6 ± 3.6) kJ·mol^-1 and -(234.4 ± 2.4) kJ·mol^-1, for Me 1H-indole-3-carboxylate and Et 1H-indole-2-carboxylate, resp.Quantum chem. studies were also conducted, in order to complement the exptl. study. The gas-phase enthalpies of formation were estimated from high level ab initio MO calculations, at the G3(MP2) level, for the compounds studied exptl., extending the study to the Me 1H-indole-2-carboxylate and Et 1H-indole-3-carboxylate. The results obtained were compared with the exptl. data and were also analyzed in terms of structural enthalpic group contributions. In the experiment, the researchers used many compounds, for example, Ethyl 1H-indole-3-carboxylate (cas: 776-41-0Recommanded Product: Ethyl 1H-indole-3-carboxylate).

Ethyl 1H-indole-3-carboxylate (cas: 776-41-0) 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. In addition to indole, the strain-release chemistry worked for numerous substrates including amines, alcohols, thiols, carboxylic acids, imidazoles, and pyrazoles.Recommanded Product: Ethyl 1H-indole-3-carboxylate

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

Thermodynamic properties of alkyl 1H-indole carboxylate derivatives: A combined experimental and computational study was written by Carvalho, Tania M. T.;Amaral, Luisa M. P. F.;Morais, Victor M. F.;Ribeiro da Silva, Maria D. M. C.. And the article was included in Journal of Chemical Thermodynamics in 2016.Recommanded Product: Ethyl 1H-indole-3-carboxylate This article mentions the following:

The standard (p^o = 0.1 MPa) molar enthalpies of formation, in the crystalline phase, of Me 1H-indole-3-carboxylate and Et 1H-indole-2-carboxylate, at T = 298.15 K, were derived from measurements of the standard massic energies of combustion using a static bomb combustion calorimeter. The Knudsen effusion technique was used to measure the vapor pressures as a function of the temperature, which allowed determining the standard molar enthalpies of sublimation of these compounds The standard (p^o = 0.1 MPa) molar enthalpies of formation, in the gaseous phase, at T = 298.15 K, were calculated by combining, for each compound, the standard molar enthalpy of formation, in the crystalline phase, and the standard molar enthalpy of sublimation, yielding -(207.6 ± 3.6) kJ·mol^-1 and -(234.4 ± 2.4) kJ·mol^-1, for Me 1H-indole-3-carboxylate and Et 1H-indole-2-carboxylate, resp.Quantum chem. studies were also conducted, in order to complement the exptl. study. The gas-phase enthalpies of formation were estimated from high level ab initio MO calculations, at the G3(MP2) level, for the compounds studied exptl., extending the study to the Me 1H-indole-2-carboxylate and Et 1H-indole-3-carboxylate. The results obtained were compared with the exptl. data and were also analyzed in terms of structural enthalpic group contributions. In the experiment, the researchers used many compounds, for example, Ethyl 1H-indole-3-carboxylate (cas: 776-41-0Recommanded Product: Ethyl 1H-indole-3-carboxylate).

Ethyl 1H-indole-3-carboxylate (cas: 776-41-0) 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. In addition to indole, the strain-release chemistry worked for numerous substrates including amines, alcohols, thiols, carboxylic acids, imidazoles, and pyrazoles.Recommanded Product: Ethyl 1H-indole-3-carboxylate

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