additions of two equivalents of trialkylphosphites onto phosphonodithioformates produce stabilized α-sulfanyl-α-phosphonyl phosphonium ylides. Their subsequent reaction with alkyl or benzyl halides gives stabilized sulfonium ylides. Thermal treatment of these phosphonium and sulfonium ylides leads to α-sulfanyl methylene bis-phosphonates through protonation–dealkylation intramolecular reactions. © 2009 Wiley
将两当量的
亚磷酸三烷基酯添加到膦酰二
硫代
甲酸酯上会产生稳定的 α-
硫酰基-α-膦酰基
鏻叶立德。它们随后与烷基卤或苄基卤反应得到稳定的锍叶立德。对这些
鏻和锍叶立德进行热处理,通过质子化-脱烷基化分子内反应生成 α-
硫烷基亚甲基
双膦酸酯。© 2009 Wiley Periodicals, Inc. 杂原子
化学 20:164–171, 2009; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20530