二正丁基氧化锡 、 苯酐 在
3,3-二丁基-2,4,3-苯并二氧杂锡杂卓-1,5-二酮 作用下,
反应 0.66h,
以Dibutyltin phthalate (compound 1) is obtained as the end product in the form of a white free-flowing powder的产率得到3,3-二丁基-2,4,3-苯并二氧杂锡杂卓-1,5-二酮
参考文献:
名称:
Process for the preparation of diorganotin dicarboxylates
DAVIES, A. G.;HAWARI, J. A. -A., J. CHEM. SOC. PERKIN TRANS., 1983, N 4, 875-882
作者:DAVIES, A. G.、HAWARI, J. A. -A.
DOI:——
日期:——
Process for the preparation of diorganotin dicarboxylates
申请人:Ciba-Geigy Corporation
公开号:US05364954A1
公开(公告)日:1994-11-15
The invention relates to a process for the preparation of a pulverulent diorganotin dicarboxylate, which comprises reacting a diorganotin oxide of the formula I, ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are C.sub.1 -C.sub.8 alkyl, at a temperature in the range from 45.degree. C. to 70.degree. C. in the absence of solvents and adsorbents with a dicarboxylic acid of the formula II ##STR2## in which R.sup.3 is C.sub.1 -C.sub.18 alkylene, cycloalkylene having 5 to 7 carbon atoms, phenylene, C.sub.1 -C.sub.18 alkenylene or C.sub.1 -C.sub.8 alkylene substituted by 1 or 2 hydroxyl groups, or its anhydride, and subjecting the reaction mixture and the product during the reaction and the subsequent cooling phase to constant thorough mixing. The diorganotin dicarboxylates thus obtained are suitable for the stabilization of chlorine-containing polymers against the damaging effect of light, oxygen and/or heat.