Asymmetric cyanohydrin formation from aldehydes catalyzed by manganese Schiff base complexes
摘要:
The catalyst generated in situ from Mn(OAc)(2) and a chiral Schiff base ligand exhibited excellent catalytic abilities in asymmetric cyanohydrin formation from aldehydes with sodium cyanide in up to 99% enantioselectivity and good yield. (C) 2010 Elsevier Ltd. All rights reserved.
Asymmetric cyanohydrin formation from aldehydes catalyzed by manganese Schiff base complexes
摘要:
The catalyst generated in situ from Mn(OAc)(2) and a chiral Schiff base ligand exhibited excellent catalytic abilities in asymmetric cyanohydrin formation from aldehydes with sodium cyanide in up to 99% enantioselectivity and good yield. (C) 2010 Elsevier Ltd. All rights reserved.
Enzymatic kinetic resolution of racemic cyanohydrins via enantioselective acylation
作者:Qing Xu、Yongli Xie、Xiaohong Geng、Peiran Chen
DOI:10.1016/j.tet.2009.11.074
日期:2010.1
Enzymatickineticresolution of a series of aromatic and aliphatic cyanohydrins in organic media has been investigated. The behavior of potential lipases, molecular sieves, acyl reagent, reaction temperature, and organic solvents on the kineticresolution was studied. The influence of substrate structure, steric, and electronic nature and position of the aryl substituent on the enantioselectivity was
The catalyst generated in situ from Mn(OAc)(2) and a chiral Schiff base ligand exhibited excellent catalytic abilities in asymmetric cyanohydrin formation from aldehydes with sodium cyanide in up to 99% enantioselectivity and good yield. (C) 2010 Elsevier Ltd. All rights reserved.