116763-08-7

Upstream product

• 696-59-3 cis,trans-2,5-dimethoxytetrahydrofuran 
• 7524-50-7 methyl (2S)-2-amino-3-phenylpropanoate hydrochloride 
• 79561-72-1 N,N-bis-allyl-L-phenylalanine methyl ester 

Downstream Products

• 123366-90-5 (S)-3-phenyl-2-(1H-pyrrol-1-yl)propan-1-ol 
• 123366-98-3 3-phenyl-2-(pyrrol-1-yl)propanal 
• 918164-92-8 (S)-methyl 2-(2-formyl-1H-pyrrol-1-yl)-3-phenylpropanoate 
• 123366-98-3 3-Phenyl-2-pyrrol-1-yl-propionaldehyde 
• 7524-50-7 methyl (2S)-2-amino-3-phenylpropanoate hydrochloride 
• 51987-73-6 (S)-2-tert-butoxycarbonylamino-3-phenyl-propionic acid methyl ester 

Relevant academic research and scientific papers

Microwave-assisted ring-closing metathesis of diallylamines: a rapid synthesis of pyrrole and pyrroline derivatives

The ring-closing metathesis (RCM) reactions of diallylamines occurred under controlled microwave irradiation. In addition to the high reaction rate, the key features of the reaction are that it can be carried out without deactivation of the substrates and

METHOD FOR PRODUCING OPTICALLY ACTIVE CARBOXYLIC ACID ESTER

Provided is a method for producing an optically active carboxylic acid ester at a high yield and with high enantioselectivity using dynamic kinetic resolution, said optically active carboxylic acid ester having an α-nitrogen substituent. This method for producing an optically active carboxylic acid ester includes a step in which racemic carboxylic acid represented by formula (a) and a specific alcohol or phenol derivative are reacted in a polar solvent having a dipole moment of at least 3.5 in the presence of an acid anhydride and an asymmetric catalyst, one enantiomer of the racemic carboxylic acid is selectively esterified, and the other enantiomer is racemized. In formula (a), Ra1 represents a nitrogen-containing heteroaromatic ring group bonded to an assymetric carbon via a nitrogen atom constituting a ring, and Ra2 is an organic group.

Nonenzymatic, enantioconvergent dynamic kinetic resolution (DKR) of racemic 2-(1H-pyrrol-1-yl)alkanoic acids as α-amino acid equivalents

We report an effective dynamic kinetic resolution (DKR) system of racemic 2-(1H-pyrrol-1-yl)alkanoic acids, which consists of a rapid racemization step via an activating substrate and an enantio-discriminating step via catalytic esterification. The combination of pivalic anhydride as an activating agent, bis(α-naphthyl)methanol as an achiral alcohol, (R)-BTM as a chiral acyl-transfer catalyst, and Hunig's base converted racemic 2-(1H-pyrrol-1-yl)alkanoic acids to the corresponding chiral carboxylates, which can be transformed into chiral α-amino acid derivatives with maintained high enantiopurity.

Lewis acid assisted ring-closing metathesis of chiral diallylamines: An efficient approach to enantiopure pyrrolidine derivatives

(Chemical Equation Presented) Lewis acid assisted ring-closing olefin metathesis (RCM) of chiral diallylamines, using the second generation RCM ruthenium-based catalyst, leads to enantiopure pyrrolidine derivatives in 79-93% yields under very mild conditi

Peptide Synthesis Using the Pyrrole Ring as an Amino Protecting Group

The utility of a pyrrole ring as an amino protecting group for amino acids in peptide synthesis has been studied.The N-termini of various amino acids (1) were protected with a pyrrole ring by treatment with 2,5-dimethoxytetrahydrofuran (10) to give 2-substituted 2-(1-pyrrolyl)acetic acids (11).The peptide bond between (11) and amino acid methyl ester (2) was formed using N,N'-dicyclohexylcarbodiimide, and the pyrrole ring was cleaved by ozonolysis and hydrolysis without the cleavage of a peptide bond to give the corresponding dipeptide compounds (26) in good yields.