119244-26-7Relevant articles and documents
Photoswitchable Chiral Phase Transfer Catalyst
Kondo, Masaru,Nakamura, Kento,Krishnan, Chandu G.,Takizawa, Shinobu,Abe, Tsukasa,Sasai, Hiroaki
, p. 1863 - 1867 (2021)
Azo-crown ether-based photoswitching chiral phase transfer catalysts have been developed to control the catalytic activity by photoirradiation. Azobenzene binaphthyl crown ether (ABCE) can switch its reactivity and selectivity through structural transform
A new class of acetophenone-based cinchona alkaloids as phase-transfer catalysts: Application to the enantioselective synthesis of α-amino acids
Lv, Jian,Zhang, Liping,Liu, Lei,Wang, Yongmei
, p. 1354 - 1355 (2008/03/18)
A new class of acetophenone-based cinchona alkaloid-de-rived quaternary ammonium salts were prepared and evaluated as phase-transfer catalysts in the enantioselective alkylation of glycine imine ester. +R 3N-CH2COAr and el
Asymmetric alkylation of glycine imine esters using solid supports preloaded with base
Yu, Haitao,Takigawa, Setsuko,Koshima, Hideko
, p. 8405 - 8410 (2007/10/03)
Investigations into the use of solid supports preloaded with base for the asymmetric alkylation of a benzophenone-derived glycine-imine was described. Residual traces of water on the support dramatically accelerated the reactions to complete within a few