Organotin chemistry. Part XI. The preparation of organotin alkoxides
作者:Alwyn G. Davies、D. C. Kleinschmidt、P. R. Palan、S. C. Vasishtha
DOI:10.1039/j39710003972
日期:——
Trialkyltin alkoxides, R3SnOR′, can be prepared conveniently by thermal decarboxylation of a mixture of the oxide, (R3Sn)2O, and dialkyl carbonate, (R′O)2CO, or (except when R = Me or Et) by azeotropic dehydration of a mixture of the bistrialkyltin oxide and alcohol, R′OH. Under these latter conditions, dibutyltin oxide forms the 1,1,3,3-tetra-butyl-1,3-dialkoxydistannoxanes, (R′O)Bu2Sn·O·SnBu2(OR′)
可以通过氧化物(R 3 Sn)2 O和碳酸二烷基酯(R'O)2 CO或(的混合物除外)的热脱羧反应方便地制备三烷基锡醇盐R 3 SnOR'。Et)通过双三烷基氧化锡与醇R'OH的混合物进行共沸脱水。在后一种条件下,二丁基氧化锡形成1,1,3,3-四丁基-1,3-二烷氧基二恶烷(R'O)Bu 2 Sn·O·SnBu 2(OR'),其中(R除外) = Me)在蒸馏时分解成二烷氧化物Bu 2 Sn(OR')2和氧化物Bu 2 SnO。