作者:C. Lion、J.E. Dubois
DOI:10.1016/s0040-4020(01)93497-0
日期:1973.1
4-dimethyl-2-oxazolines, 4, after hydrolysis of the intermediate enamine. Alkylation of the latter also permits the synthesis of α,α,α-trisubstituted ketones. α,α-Disubstituted ketones have been prepared by addition of organometallic reagents to 4,4-dimethyl-2-oxazolinium salts, 6. The efficiency of this method has been compared to that of other currently used methods.
α,α-二取代的酮由中间体烯胺水解后有机锂化合物与取代的4,4-二甲基-2-恶唑啉4反应生成。后者的烷基化还允许合成α,α,α-三取代的酮。通过将有机金属试剂添加到4,4-二甲基-2-恶唑啉鎓盐6中,可以制备出α,α-二取代的酮。已将该方法的效率与其他当前使用的方法进行了比较。