A new (R)-hydroxynitrile lyase from Prunus mume: asymmetric synthesis of cyanohydrins
作者:Samik Nanda、Yasuo Kato、Yasuhisa Asano
DOI:10.1016/j.tet.2005.08.105
日期:2005.11
A new hydroxynitrile lyase (HNL) was isolated from the seed of Japanese apricot (Prunus mume). The enzyme has similar properties with HNL isolated from other Prunus species and is FAD containing enzyme. It accepts a large number of unnatural substrates (benzaldehyde and its variant) for the addition of HCN to produce the corresponding cyanohydrins in excellent optical and chemical yields. A new HPLC
Kinetic Resolution of Racemic Amino Alcohols through Intermolecular Acetalization Catalyzed by a Chiral Brønsted Acid
作者:Takuto Yamanaka、Azusa Kondoh、Masahiro Terada
DOI:10.1021/ja512238n
日期:2015.1.28
The kineticresolution of racemic secondary alcohols is a fundamental method for obtaining enantiomerically enriched alcohols. Compared to esterification, which is a well-established method for this purpose, kineticresolution through enantioselective intermolecular acetalization has not been reported to date despite the fact that the formation of acetals is widely adopted to protect hydroxy groups
Kinetic Resolution of Tertiary Alcohols by Chiral Organotin-Catalyzed O-Acylation
作者:Jian Song、Wen-Hua Zheng
DOI:10.1021/acs.orglett.2c00537
日期:2022.4.1
A novel highlyenantioselective method for the kinetic resolution of racemic tertiary alcohols has been achieved through chiral organotin-catalyzed intermolecular acylation of the hydroxyl group. This process has demonstrated a broad substrate scope (both alkyl- and aryl-substituted tertiary alcohols) with high enantioselectivity under mild reaction conditions, affording the corresponding products
Hydrocyanation of pentenenitriles using cyanohydrins
申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0510689A1
公开(公告)日:1992-10-28
Hydrocyanation of pentenenitriles using cyanohydrins as the HCN source and in which a solid dissociation additive is present in a slurry to facilitate the dissociation of the cyanohydrin.