N-Allyl-N-tert-butyldimethylsilylamine for chiral ligand-controlled asymmetric conjugate addition to tert-butyl alkenoatesElectronic supplementary information (ESI) available: general procedure for addition reaction, deallylation, silylation of allylamine and data for compounds. See http://www.rsc.org/suppdata/cc/b4/b405347h/
作者:Hirohisa Doi、Takeo Sakai、Ken-ichi Yamada、Kiyoshi Tomioka
DOI:10.1039/b405347h
日期:——
The chiral ligand controlled asymmetric conjugate addition reaction of lithium N-allyl-N-(tert-butyldimethylsilyl)amide to alkenoates proceeded smoothly to give, after protodesilylation, the corresponding 3-allylaminoalkanoates with high enantioselectivities in high yields. The allyl group on the nitrogen atom was easily removable to afford 3-aminoalkanoates.
手性配体催化的锂N-烯丙基-N-(叔丁基二甲基硅基)胺与烯酯的非对称共轭加成反应顺利进行,经过脱硅化处理后,得到相应的3-烯丙基氨基烷酸酯,具有高的对映选择性和高的产率。氮原子上的烯丙基很容易被去除,从而获得3-氨基烷酸酯。