Day: November 9, 2022

On September 30, 2007, Zhang, Yingru; Dai, Jun; Wang-Iverson, David B.; Tymiak, Adrienne A. published an article.Name: H-Idc-OH The title of the article was Simulated moving columns technique for enantioselective supercritical fluid Chromatography. And the article contained the following:

This article describes a very useful extension of an unique column switching technique called Simulated Moving Columns (SMC) that was previously reported for chiral HPLC. SMC uses two or three short chiral columns connected in series, and enables the unresolved enantiomers to sep. repeatedly and exclusively through each of the columns until sufficient resolution is attained. The technique is significantly enhanced through the use of supercritical fluid chromatog. (SFC). The supercritical or near critical carbon dioxide (CO2) used in the mobile phase of SFC possesses the properties of a liquid as well as a gas, and usually results in much sharper peaks compared to HPLC. Consequently, by combining SMC with SFC (SMC-SFC), the authors were able to dramatically increase the number of SMC cycles with significantly less band broadening compared to HPLC. For the 1st time, an enantioselective SFC separation was demonstrated by increasing the column from the actual 20 cm length to reach a half meter virtual length with remarkably enhanced efficiency. Off-column band broadening resulting from a two-column SMC system was measured, and its impact on the enantioselectivity of SMC-SFC is much less than in SMC-HPLC. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Name: H-Idc-OH

The Article related to enantioselective supercritical fluid chromatog simulated moving column, Organic Analytical Chemistry: Separations and other aspects.Name: H-Idc-OH

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

On April 30, 2006, Sun, Suya; Jia, Youzhi; Zeng, Ning; Li, Famei published an article.Electric Literature of 79815-20-6 The title of the article was Chiral ligand-exchange chromatography for separation of three stereoisomers of octahydroindole-2-carboxylic acid. And the article contained the following:

A novel HPLC method is described for separation of the three stereoisomers of octahydroindole-2-carboxylic acid (Oic), an intermediate in the synthesis of perindopril. The chiral mobile phase contained the complex of Cu(II) with the optically active selector L-phenylalaninamide (L-PheA), and an ion-pair reagent, sodium 1-octanesulfonate. The effects of the concentrations of the Cu(II)-L-PheA complex and the ion-pair reagent, mobile phase pH, ionic strength, acetonitrile content, and column temperature were studied. Satisfactory resolution was achieved for three stereoisomers, RRR-, SSS-, and SRR-Oic. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Electric Literature of 79815-20-6

The Article related to octahydroindolecarboxylic acid stereoisomer chiral ligand exchange chromatog, Organic Analytical Chemistry: Separations and other aspects.Electric Literature of 79815-20-6

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

On August 31, 2021, Ma, Jiaoli; Li, Jing; Guo, Penghu; Liao, Xincheng; Cheng, Huicheng published an article.Application In Synthesis of 1,5-Dimethyl-1H-indole-2-carbaldehyde The title of the article was Synthesis and antitumor activity of novel indole derivatives containing α-aminophosphonate moieties. And the article contained the following:

A series of novel indole derivatives containing α-aminophosphonate moieties were synthesized as antitumor agents. The in vitro cytotoxic activity of the compounds was evaluated against human hepatoma cells (HepG2) and human gastric cancer cells (MGC-803) by MTT assay, revealing that most of target compounds exhibited moderate to high antitumor activities. Among them, compound C5 (IC50 = 34.2 μM) demonstrated superior inhibitory activities against HepG2 compared with 5-fluorouracil (IC50 = 78.7 μM). It is noteworthy that compound B7 (IC50 = 35.7 μM) displayed higher inhibitory activities against MGC-803 than that of 5-fluorouracil (IC50 = 82.0 μM). The experimental process involved the reaction of 1,5-Dimethyl-1H-indole-2-carbaldehyde(cas: 883526-76-9).Application In Synthesis of 1,5-Dimethyl-1H-indole-2-carbaldehyde

The Article related to aminophosphonate moiety indole derivative antitumor activity, Placeholder for records without volume info and other aspects.Application In Synthesis of 1,5-Dimethyl-1H-indole-2-carbaldehyde

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

On June 5, 2020, Zhao, Fei; Masci, Domiziana; Ferla, Salvatore; Varricchio, Carmine; Brancale, Andrea; Colonna, Serena; Black, Gary W.; Turner, Nicholas J.; Castagnolo, Daniele published an article.Name: 6-Chloro-2,3-dihydro-1H-indole The title of the article was Monoamine Oxidase (MAO-N) Biocatalyzed Synthesis of Indoles from Indolines Prepared via Photocatalytic Cyclization/Arylative Dearomatization. And the article contained the following:

The biocatalytic aromatization of indolines into indole derivatives exploiting monoamine oxidase (MAO-N) enzymes is presented. Indoline substrates were prepared via photocatalytic cyclization of arylaniline precursors or via arylative dearomatization of unsubstituted indoles and in turn chemoselectively aromatized by the MAO-N D11 whole cell biocatalyst. Computational docking studies of the indoline substrates in the MAO-N D11 catalytic site allowed for the rationalization of the biocatalytic mechanism and exptl. results of the biotransformation. This methodol. represents an efficient example of biocatalytic synthesis of indole derivatives and offers a facile approach to access these aromatic heterocycles under mild reaction conditions. The experimental process involved the reaction of 6-Chloro-2,3-dihydro-1H-indole(cas: 52537-00-5).Name: 6-Chloro-2,3-dihydro-1H-indole

The Article related to monoamine oxidase indole indoline photocatalytic cyclization dearomatization, Placeholder for records without volume info and other aspects.Name: 6-Chloro-2,3-dihydro-1H-indole

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

Huo, Li-chun; Liu, Sheng-li; Li, Chun-xin published an article in 2015, the title of the article was Synthesis process of (S)-indoline-2-carboxylic acid.Recommanded Product: H-Idc-OH And the article contains the following content:

Synthesis process of (S)-indoline-2-carboxylic acid was investigated, where di-Et oxalate and o-nitrotoluene were taken as raw material to generate an intermediate the Et o-nitrophenylpyruvate under the action of potassium ethoxide. The target product (S)-indoline-2-carboxylic acid was obtained from Et o-nitrophenylpyruvate by nickel-catalytic hydrogenation, magnesium powder reduction and chiral separation The overall yield is 38%(based on o-nitrotoluene). This synthesis process is low in cost and environmental pollution. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Recommanded Product: H-Idc-OH

The Article related to indoline carboxylic acid synthesis chiral separation nickel catalytic hydrogenation, Placeholder for records without volume info and other aspects.Recommanded Product: H-Idc-OH

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

Huang, Xu-Lun; Cheng, Yuan-Zheng; You, Shu-Li published an article in , the title of the article was Visible-light enabled synthesis of cyclopropane-fused indolines via dearomatization of indoles.HPLC of Formula: 65417-22-3 And the article contains the following content:

An efficient synthesis of methylene-unsubstituted cyclopropane-fused indolines I (R1 = H, 2-Br, 3-Me, etc.; X = N, CH; R2 = H, CO2Me, Ac, 2-hydroxyethyl; R3 = H, Me; R4 = Boc, Ts, Ac, 4-acetyl-10,10-dimethyl-3-thia-4-azatricyclodecane-3,3-dione) and (R)-1a-((1R,5S)-10,10-dimethyl-3,3-dioxo-3lambda*6*-thia-4-aza-tricyclo[5.2.1.0*1,5*]decane-4-carbonyl)-1a,6a-dihydro-1H-6-aza-cyclopropa[a]indene-6-carboxylic acid tert-Bu ester via photoredox catalyzed dearomative cyclopropanation of indole derivatives II was developed. A broad range of indoles bearing a variety of functional groups was compatible with these mild conditions, affording the products in moderate to excellent yields. Asym. cyclopropanation was also realized with the assistance of a chiral auxiliary in good yield with excellent diastereoselectivity, followed by the removal of the auxiliary to give enantioenriched alc. I. The 5 mmol scale reaction and derivatizations of the products I were successfully carried out to demonstrate the synthetic value of this reaction. The experimental process involved the reaction of Methyl 2-methyl-1H-indole-3-carboxylate(cas: 65417-22-3).HPLC of Formula: 65417-22-3

The Article related to cyclopropane indoline preparation diastereoselective, indole preparation iodomethylsilicate dearomative cyclopropanation photoredox catalyst, Placeholder for records without volume info and other aspects.HPLC of Formula: 65417-22-3

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

On November 3, 2000, Sato, S.; Watanabe, H.; Asami, M. published an article.Formula: C9H9NO2 The title of the article was Catalytic asymmetric borane reduction of prochiral ketones by the use of diazaborolidine catalysts prepared from chiral β-diamines. And the article contained the following:

The catalytic asym. borane reduction of prochiral ketones was examined in the presence of chiral diazaborolidine catalysts prepared in situ from chiral β-diamines and borane. Chiral secondary alcs. were obtained with modest to high enantiomeric excesses (up to 92% ee) using (S)-2-[[4-(trifluoromethyl)anilino]methyl]indoline. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Formula: C9H9NO2

The Article related to asym reduction ketone diazaborolidine, General Organic Chemistry: Synthetic Methods and other aspects.Formula: C9H9NO2

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

On June 16, 2011, Xiao, Jian; Xu, Feng-Xia; Lu, Yun-Peng; Liu, Yan-Ling; Loh, Teck-Peng published an article.Related Products of 79815-20-6 The title of the article was Highly efficient and modularly tuned bicyclic organocatalyst for the enantioselective Michael addition of aldehydes to nitroalkenes. And the article contained the following:

A new type of bicyclic catalyst has been successfully applied to the asym. Michael addition of aldehydes R1CH2CHO [R1 = Me, Et, n-Pr] to nitrostyrenes R2CH:CHNO2 [R2 = Ph, 4-BrC6H4, 2-furyl, etc.] to produce OHCCH(R1)CH(R2)CH2NO2 in good yields and good enantioselectivities by using a self-assembly strategy. The success of this reaction is attributed to good control of the geometry of the enamine and efficient face shielding. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Related Products of 79815-20-6

The Article related to bicyclic catalyst enantioselective michael aldehyde nitroalkene, General Organic Chemistry: Synthetic Methods and other aspects.Related Products of 79815-20-6

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

On July 31, 2010, Gandia-Herrero, Fernando; Escribano, Josefa; Garcia-Carmona, Francisco published an article.Application In Synthesis of H-Idc-OH The title of the article was Structural implications on color, fluorescence, and antiradical activity in betalains. And the article contained the following:

Betalains are water-soluble pigments with high anti-radical capacity which bestow bright colors on flowers and fruits of most plants of the order Caryophyllales. They are classified as betacyanins, exhibiting a violet coloration, and betaxanthins, which exhibit yellow coloration. Traditionally, betalains have been defined as condensation products of betalamic acid with different amines and amino acids, but the implication of the pigment structure for their properties has not been investigated. This paper explores different structural features of the betalains, revealing the clues for the switch from yellow to violet color, and the loss of fluorescence. A relevant series of 15 betalain-related compounds (both natural and novel semisynthetic ones) is obtained and characterized by chromatog., UV-vis spectrophotometry, fluorescence, and electrospray ionization mass spectroscopy. Anti-radical properties of individual pure compounds in a broad pH range are studied under the ABTS·+ radical assay. Relevance of specific bonds is studied, and differences between betaxanthins and betacyanins are used to explore in depth the structure-antiradical activity relationships in betalains. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Application In Synthesis of H-Idc-OH

The Article related to flower color fluorescence antiradical antioxidant betalain betaxanthin betacyanin, Plant Biochemistry: Composition and Products and other aspects.Application In Synthesis of H-Idc-OH

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

On July 27, 2020, Luo, Renshi; Chen, Miao-Miao; Ouyang, Lu; Chan, Albert S. C.; Lu, Gui published an article.SDS of cas: 79815-20-6 The title of the article was Enantioselective Reformatsky Reaction of Ketones Catalyzed by Chiral Indolinylmethanol. And the article contained the following:

A reliable and practical Reformatsky reaction of Et iodidoacetate with ketones for the synthesis of chiral β-hydroxyl carbonyl compounds in good yields and excellent enantioselectivities is presented. A readily available dihydroindole derivative was used as chiral catalyst, Et iodidoacetate was the nucleophile, and Me2Zn was the zinc source. The presence of air was found to be essential for the efficient construction of new carbon-carbon bonds through a radical pathway. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).SDS of cas: 79815-20-6

The Article related to enantioselective reformatsky ketone iodoacetate chiral indolinylmethanol catalyst, General Organic Chemistry: Synthetic Methods and other aspects.SDS of cas: 79815-20-6

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