Citation:
Fu Xiangkai, Wen Shuying, Kang Wei. Quaternary Compounds of Zirconium Dibutylamino-methylphosphonate and Thier PTC Activities[J]. Chinese Journal of Applied Chemistry,
;1995, 12(2): 20-23.
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Zirconium dibutylaminomethylphosphonate-phosphites Zr(HPO3)2-x·(O3PCH2N-Bu2)x·H2O (ZPDBN-ZP,x=0.8,0.6,0.5,0.4,0.35) have been prepared for the first time. Partly quaternized ZPDBN-ZP with benzylbromide, zirconium (benzyldibutylammo-niomethylphosphonate bromide-dibutylammoniomethylphosphonate-phosphite) Zr(HPO3)2-x·(O3PCH2NBu2)x-y·(O3PCH2N+Bu2PhCH2Br-)y·H2O (ZPBBDB-ZPDBN-ZP, y< x) have been obtained. Heterogeneous PTC reactions of nucleophilic substitution, etherifica-tion,esterification, and addition of dichlorocarbene by using ZPBBDB-ZPDBN-ZP have been carried out successfully. The catalysts can easily be recovered with recovery of 70%~100%. No obvious loss of the catalytic activity was found after more than ten times repeated use.
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