(5S)-5-benzyl-2,2,3-trimethylimidazoiidin-4-one as a highly effective chiral auxiliary for asymmetric reduction of α-oxo amides
作者:Igor Solodin、Yuri Goldberg、Gunārs Zelčāns、Edmunds Lukevics
DOI:10.1039/c39900001321
日期:——
Reduction of the α-oxo amide derived from phenylglyoxylic acid, containing (5S)-5-benzyl-2,2,3-trimethylimidazolidin-4-one as a chiral auxiliary, with NaBH4 or via fluoride ion-induced hydrosilylation with HSiMe2Ph was found to proceed with 90–100% diastereoselectivity.
用NaBH 4或通过氟化物离子诱导的HSiMe还原由(5 S)-5-苄基-2,2,3-三甲基咪唑烷基-4-酮作为手性助剂的苯乙醛酸衍生的α-氧代酰胺发现2 Ph具有90-100%的非对映选择性。