作者:Hiroshi Shimizu、Naoko Araki、Osamu Muraoka、Genzoh Tanabe
DOI:10.1016/s0040-4039(00)00124-6
日期:2000.3
Treatment of 2-benzothiopyrylium salt with alkenes such as styrene, p-methylstyrene, p-methoxystyrene, α-methylstyrene, and trans-anethole afforded the corresponding [4++2]-type polar cycloaddition products, respectively. The structures of the cycloadducts were confirmed by X-ray crystal structure determination of the corresponding sulfone derivative.
用烯烃如苯乙烯,对-甲基苯乙烯,对-甲氧基苯乙烯,α-甲基苯乙烯和反式茴香脑处理2-苯并硫代吡啶鎓盐分别得到相应的[4 + +2]型极性环加成产物。通过相应的砜衍生物的X射线晶体结构测定来确认环加合物的结构。