199800-49-2Relevant articles and documents
Catalytic Enantioselective Decarboxylative Mannich-Type Reaction of N-Unprotected Isatin-Derived Ketimines
Sawa, Masanao,Miyazaki, Shotaro,Yonesaki, Ryohei,Morimoto, Hiroyuki,Ohshima, Takashi
, p. 5393 - 5397 (2018/09/13)
The first catalytic enantioselective decarboxylative Mannich-type reaction of N-unprotected ketimines is reported, directly providing N-unprotected 3-tetrasubstituted 3-aminooxindoles in high yield and ee without protection/deprotection steps. The utility
An asymmetric acetate-Mannich reaction of chiral isatin derived ketimines and its applications
Hajra, Saumen,Bhosale, Suhas Shivajirao,Hazra, Atanu
, p. 9217 - 9225 (2017/11/14)
A highly efficient TMSOTf-mediated asymmetric acetate-Mannich reaction of isatin derived tert-butylsulfinyl ketimines and S-phenyl thioacetate was developed to afford the direct synthesis of indole-based β3,3-amino acid thioester with excellent selectivity (dr > 98 : 2). Syntheses of (+)-AG-041R and 3-aminopyrroloindoline have been accomplished utilizing the developed method.
Enantioselective synthesis of AG-041R by using N-heteroarenesulfonyl cinchona alkaloid amides as organocatalysts
Hara, Noriyuki,Nakamura, Shuichi,Sano, Masahide,Tamura, Ryota,Funahashi, Yasuhiro,Shibata, Norio
, p. 9276 - 9280 (2012/08/28)
The organocatalytic enantioselective decarboxylative addition of malonic acid half thioesters to ketimines derived from isatins by using N-heteroarenesulfonyl cinchona alkaloid amides afforded products with high enantioselectivity. The products could be c