REGIO- AND STEREOSPECIFIC Z-IODO - AND Z-BROMOCHLORINATION OF ALKYLPHENYLACETYLENES VIA Z-CHLOROTELLURATION
作者:Sakae Uemura、Haruo Miyoshi、Masaya Okano
DOI:10.1246/cl.1979.1357
日期:1979.11.5
Reaction of alkylphenylacetylenes with tellurium(IV) tetrachloride in carbon tetrachloride gives Z-(2-chlorovinyl)tellurium (IV) trichloride derivatives in over 75% yield, which afford the corresponding Z-chloroiodoalkenes or Z-bromochloroalkenes in good yields by halogenodetelluration with iodine in acetonitrile or N-bromosuccinimide in carbon tetrachloride.
烷基苯乙炔与四氯化碲(IV)在四氯化碳中的反应得到 Z-(2-氯乙烯基)碲(IV)三氯化物衍生物,产率超过 75%,通过碘卤代碲化反应,得到相应的 Z-氯碘烯烃或 Z-溴氯烯烃,产率良好在乙腈或 N-溴代琥珀酰亚胺的四氯化碳中。