Synthesis of 2,2-disubstituted 2,5-dihydro-4-methyloxazoles.
作者:Duy H. Hua、Noureddine Khiar、Fengqi Zhang、Laurent Lambs
DOI:10.1016/0040-4039(93)88036-i
日期:1992.12
2,2-Disubstituted 2,5-dihydro-4-methyloxazoles (1) were synthesized from 2-aminopropanol in three steps. 3-Oxazolines 1 can be converted into various α-sulfinyl ketimines such as (SS)-(4-methylphenyl)sulfinylmethyl}-2,2-diethyl-2,5-dihydrooxazole (5) which was stereoselectively reduced with Dibal-H to give 3-hydroxy-2-aminopropyl sulfoxide 7.
由2-氨基丙醇分三步合成2,2-二取代的2,5-二氢-4-甲基恶唑(1)。可以将3-Oxazolines 1转化为各种α-亚磺酰基酮亚胺,例如(S S)-(4-甲基苯基)亚磺酰基甲基} -2,2-二乙基-2,5-二氢恶唑(5),并用Dibal- H得到3-羟基-2-氨基丙基亚砜7。