Abstract 2-Phosphoryl-(2–4), 2-sulfinyl-(5) and 2-sulfonyl-2,3-alkadienoates (6 and 7) were prepared in an one-pot reaction by a [2,3]-sigmatropic rearangement of the heteroatom-substituted 2-alkynoates obtained from ethyl propynoate and subsequent treatment with lithium diisopropylamide, ketone, trimethylchlorosilane and phosphorus- or sulfur-containing chloride.
摘要 2-Phosphoryl-(2–4), 2-sulfinyl-(5) 和 2-sulfonyl-2,3-alkadienoates (6 and 7) 是通过 [2,3]-sigmatropic 在一锅反应中制备的。由
丙炔酸乙酯得到的杂原子取代的 2-炔酸酯的重排,然后用
二异丙基氨基
锂、酮、三
甲基氯硅烷和含
磷或
硫的
氯化物处理。