( R )-(+)-2-甲基-CBS-恶唑硼烷溶液[1M,溶于甲苯中]可以用作全氟烷基酮的不对称硼烷还原中的催化剂。 它也可以用于制备: (-)-地黄皂苷 B (1 R )-2-叠氮基-1-(2,2-二甲基-4 H -1,3-苯并二恶英-6-基)乙醇 ( S )-α-氘代苄醇 (3 S ,4 R ,5 S )-1-(三甲基甲硅烷基)-4,5-环氧己基-1-yn-3-醇 用于不对称还原和不对称合成的CBS催化剂 出色的不对称还原催化剂。 CBS(Corey-Bakshi-Shibata)恶唑硼烷催化剂已被用于前手性酮的不对称还原。其它应用包括对映选择性合成α-羟基酸、α- 氨基酸、 C 2 对称二茂铁基二醇和炔丙醇。 用于脱对称还原反应,生成( S )-4-羟基环己烯酮。
Application
( R )-(+)-2-Methyl-CBS-oxazaborolidine solution [1M in toluene] may be used as a catalyst in the asymmetric borane reduction of perfluoroalkyl ketones. It may also be used in the preparation of: (-)-diospongin B (1 R )-2-azido-1-(2,2-dimethyl-4 H -1,3-benzodioxin-6-yl)ethanol ( S )-α-deuteriobenzyl alcohol (3 S ,4 R ,5 S )-1-(trimethylsilyl)-4,5-epoxyhex-1-yn-3-ol Excellent catalyst of asymmetric reductions. The CBS (Corey-Bakshi-Shibata) oxazaborolidine catalyst has been used in the asymmetric reduction of prochiral ketones. Other applications include the enantioselective synthesis of α-hydroxy acids, α-amino acids, C 2 symmetrical ferrocenyl diols, and propargyl alcohols. Used in a desymmetrizing reduction leading to ( S )-4-hydroxycyclohexenone. CBS Catalysts for Asymmetric Reduction and Asymmetric Synthesis