A direct catalyticasymmetricaddition of acetonitrile to aldehydes that realizes over 90 % ee is the ultimate challenge in alkylnitrile addition chemistry. Herein, we report achieving high enantioselectivity by the strategic use of a sterically demanding NiII pincer carbene complex, which afforded highly enantioenriched β‐hydroxynitriles. This highly atom‐economical process paves the way for exploiting
Highly enantioselective synthesis of β-hydroxy nitriles by the cyanomethylation of aldehydes using DPMPM as a chiral catalysts or ligand
作者:Kenso Soai、Yuji Hirose、Shuichi Sakata
DOI:10.1016/s0957-4166(00)80498-x
日期:1992.6
Optically active beta-hydroxy nitriles in up to 93% e.e. were obtained by the enantioselective addition of cyanomethylzinc bromide to aldehydes using DPMPM as a chiral catalyst or ligand.
ITOH, TOSHIYUKI;TAKAGI, YUMIKO, CHEM. LETT.,(1989) N, C. 1505-1506
作者:ITOH, TOSHIYUKI、TAKAGI, YUMIKO
DOI:——
日期:——
ITOH, TOSHIYUKI;TAKAGI, YUMIKO;NISHIYAMA, SHIGENORI, J. ORG. CHEM., 56,(1991) N, C. 1521-1524