Reactions of Trihalo(phenylenedioxy)phosphoranes with Arylacetylenes:IX.* Reaction of 2,2,2-Trichloro-1,3,2 lambda~5-benzodioxaphosphole with 1-Iodo-2-phenylethyne

摘要

According to NMR data,the reaction of 2,2,2-trichloro-1,3,2 lambda~5-benzodioxaphosphole with 1-iodo-2-phenylethyne leads to formation of 2,6-and 2,8-dichloro-3-iodo-4-phenyl-1,2 lambda~5-benzoxaphos-phinine 2-oxides which undergo partial hydrodeiodination to 2,6-and 2,8-dichIoro-4-phenyl-1,2 lambda~5-benzoxa-phosphinine 2-oxides,respectively.