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溴化苄对二乙基胺甲基膦酸锆的季铵化及三相催化反应

QUATERNIZATION OF ZIRCONIUM DIETHYLAMINOMETHYLPHOSPHONATE WITH BENZYLBROMIDE AND THEIR PTC REACTIONS
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摘要 首次制得二乙基胺甲基膦酸锆-亚磷酸锆Zr(HPO_3)_(2-x)·(O_3PCH_2NEt_2)_x·H_2O(ZDEAMP-ZP,x=0.75,0.60,0.50).将ZDEAMP-ZP用溴化苄季铵化,得到部分季铵化的产物:溴化苄基二乙基铵甲基膦酸锆-二乙基胺甲基膦酸锆-业磷酸锆Zr(HPO_3)_(2-x)·(O_3PCH_2NEt_2)_(x-y)·(O_3PCH_2N ̄+Et_2·CH_2Ph·Br ̄-)_y·H_2O(Y<X,ZBDEAMPB-ZDEAMP-ZP).ZBDEAMPB-ZDEAMP-ZP用于进行液/固/液或固固/液三相催化的亲核取代成醚、卤代烃和羧酸盐合成酯及二氯卡宾加成反应,均得到良好的结果。催化剂易于分离和回收,通常回收70%~100%,催化剂重复使用10次以上无明显失活。 Zirconium(diethylaminomethylphosphonate-phosphite),Zt(HPO_3)_(2一x)(O_3PCH_2NEt_2)_x·H_2O(ZDEAMP-ZP,x=0.75,0.6,0.5)was prepoed for the first time,Quaternization of ZDEAMP-ZP with benaylbromide, partly quaternized,ZDEAMP-ZP:Zirconium(benzyldiethylammoniome thylphophonate bromide-diethylaminomethylphcaphonate-phosphite) Zr(HPO_3)_(2一x)(O_3PCH_2NEt_2)_(x-y)·(O_3PCH_2N ̄+Et_2 ·CH_2Ph·Br ̄一)_y · H_2O(y<X,ZBDEAMPB-ZDEAMP-ZP) was obtained, ZBDEAMPB-ZDEAMP-ZP catalyzed PTC reactions such as nucleophilic substitution, ether formation ester from halides and carboxylates,and addition of dichloreearbene in L/s/L orS/S/L phase,were carried out to give fairly good results,The catalyst can be easily separated and usually re-covered 7o%~100%,The catalyst can be reused more than 10 times without lose of catalytic activi-ty.
出处 《西南师范大学学报(自然科学版)》 CAS CSCD 1994年第5期489-493,共5页 Journal of Southwest China Normal University(Natural Science Edition)
基金 国家自然科学基金
关键词 二乙基胺 甲基膦酸 催化剂 diethylaminomethylphosphonic acid tfiphase catalysis phase transfer Zircomium PTC reaction
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