achieved by methyl phenyl sulfoxide (PhSOCH3) and substoichiometric (COCl)2 in CH3CN. The corresponding cyclization products, lactones with a phenylthio group from unsaturated acids were obtained in mediate to good yields, whereas the cyclic ethers with a phenylthio group from unsaturated alcohols in relatively low yields. PhSOH was proposed to be the key active species for phenylsulfenylation, which was
不饱和酸和醇的
苯基亚磺酰化已通过
甲基苯基亚砜 (PhSOCH 3 ) 和亚
化学计量 (COCl) 2在 CH 3 CN 中实现。相应的环化产物,来自不饱和酸的具有
苯硫基的内
酯以中等收率获得,而来自不饱和醇的具有
苯硫基的
环醚的收率相对较低。PhSOH 被认为是
苯磺酰化的关键活性物质,它是通过 PhSOCH 3与亚
化学计量的 (COCl) 2反应原位生成的。无
水 HCl 可以在反应中代替 (COCl) 2以产生可比较的结果。