Addition of aminoketene dithioacetals to α,β-unsaturated ketones. Synthesis and reactions of cyclohex-2-en-1,4-dione monodithioacetals
作者:Philip C. Bulman Page、Shaun A Harkin、Allan P. Marchington、Monique B. van Niel
DOI:10.1016/s0040-4020(01)89242-5
日期:1989.1
Aminoketene dithioacetals add to α,β-unsaturated ketones to give 1,5-diketones after hydrolytic work-up. Upon treatment with acid or base, these diketones suffer intramolecular aldol reactions yielding cyclohex-2-en-1,4-dione monodithioacetals, interesting and useful synthetic equivalents of cyclohex-2-en-1,4-diones which readily undergo conjugate addition and cycloaddition reactions.
水解后,氨基酮二硫缩醛可添加到α,β-不饱和酮中,得到1,5-二酮。在用酸或碱处理后,这些二酮会发生分子内羟醛反应,生成环己-2-烯-1,4-二酮单二硫缩醛,有趣且有用的环己-2-烯-1,4-二酮的合成等效物,这些化合物容易进行共轭加成和环加成反应。