Bisphosphorylallenes were easily obtained in multigram scale from the Wittig-type rearrangement of bispropargyl alcohols. Unlike other conjugated bis-allenes, these reagents underwent a double cyclization mediated by iodine or copper dibromide leading to the formation of bis-1,2-oxaphospholenes.
从双炔丙基醇的Wittig-型重排可容易地以克数获得双
磷酸烯丙二酯。与其他共轭双烯
丙二烯不同,这些试剂经历了由
碘或二
溴化铜介导的双环化作用,从而导致了双1,2-氧杂膦烯的形成。