73737-02-7Relevant articles and documents
Electronically modified polymer-supported cinchona phase-transfer catalysts for asymmetric synthesis of α-alkyl-α-amino acid derivatives
Shi, Qinghua,Lee, Yeon-Ju,Song, Hongrui,Cheng, Maosheng,Jew, Sang-Sup,Park, Hyeung-Geun,Jeong, Byeong-Seon
, p. 436 - 437 (2008/09/20)
Merrifield resin-supported hydrocinchonidinium salts containing particular functional groups that can participate in hydrogen bonding were prepared and evaluated as chiral phase-transfer catalysts using the asymmetric benzylation of glycine imine ester. These electronically modified Merrifield resin-supported phase-transfer catalysts generally provided better enantioselectivities compared to the unmodified ones. Copyright