158149-99-6Relevant academic research and scientific papers
Highly enantioselective synthesis of (S)-α-alkyl-α,β- diaminopropionic acids via asymmetric phase-transfer catalytic alkylation of 2-phenyl-2-imidazoline-4-carboxylic acid tert-butyl esters
Park, Yohan,Kang, Sukhoon,Lee, Young Ju,Kim, Taek-Soo,Jeong, Byeong-Seon,Park, Hyeung-Geun,Jew, Sang-Sup
supporting information; experimental part, p. 3738 - 3741 (2011/02/28)
Image Presented An efficient enantioselective synthetic method for (S)-α-alkyl-α,β-diaminopropionic acid is reported. The asymmetric phase-transfer catalytic alkylation of N(1)-Boc-2-phenyl-2- imidazoline-4-carboxylic acid tert -butyl ester in the presenc
Diastereoselective Electrophilic Amination of Chiral 1-Benzoyl-2,3,5,6-tetrahydro-3-methyl-2-(1-methylethyl)pyrimidin-4(1H)-one for the Asymmetric Syntheses of α-Substituted α,β-Diaminopropanoic Acids)
Castellanos, Elena,Reyes-Rangel, Gloria,Juaristi, Eusebio
, p. 1016 - 1024 (2007/10/03)
The chiral compounds (R)- and (S)-1-benzoyl-2,3,5,6-tetrahydro-3-methyl-2-(1-methylethyl)pyrimidin-4(1H)-one ((R)- and (S)-1), derived from (R)- and (S)-asparagine, respectively, were used as convenient starting materials for the preparation of the enanti
Stereoselective Amination of Chiral Enolates: Synthesis of Chiral Key Intermediates for β-Lactam Antibiotics
Cativiela, Carlos,Diaz-de-Villegas, Maria D.,Galvez, Jose A.
, p. 1465 - 1468 (2007/10/02)
Stereoselective enolate trapping of lithium (1S,2R,4R)-1O-dicyclohexylsulfamoylisobornyl-2-cyano-3-phenylpropanoate with O-(diphenylphosphinyl)hydroxylamine followed by appropriate reduction, hydrolysis, and cyclisation processes allows the asymmetric syn
