Four component synthesis of (Z)-4-alkoxy-1,3-dimethylalk-2-enyl methyl sulfones: on the intermediacy of sultines (3,6-dihydro-1,2-oxathiin-2-oxides) arising from suprafacial hetero-Diels–Alder additions of sulfur dioxide
作者:Sophie Megevand、Jonathan Moore、Kurt Schenk、Pierre Vogel
DOI:10.1016/s0040-4039(00)02102-x
日期:2001.1
methyl sulfones with unlike relative configuration at C-1 and C-4 (by X-ray diffraction studies), in support of processes involving the intermediacy of a sultine arising from the suprafacial hetero-Diels–Alder addition of SO2 to diene 9.
(E,E)-1-苄氧基-2-甲基戊-1,3-二烯(9)与3,3-二甲基-2-(三甲基甲硅烷氧基)丁烯与(Z)-3-(三甲基甲硅烷氧基)戊-的反应SO 2中的2-烯和路易斯酸生成甲硅烷基亚磺酸盐,将其用MeI淬灭,生成相应的(Z)-4-苄氧基-1,3-二甲基烷-2-烯基甲基砜,在C-1和C-4(由X射线衍射研究),在支持涉及从suprafacial杂狄尔斯-阿尔德加成SO的引起的sultine的中间性流程2与二烯9。