C,N-chelated organotin(IV) compounds as catalysts for transesterification and derivatization of dialkyl carbonates
作者:Tomáš Weidlich、Libor Dušek、Barbora Vystrčilová、Aleš Eisner、Petr Švec、Aleš Růžička
DOI:10.1002/aoc.2858
日期:2012.6
The potential catalytic activity of selected C,N‐chelated organotin(IV) compounds (e.g. halides and trifluoroacetates) for derivatization of both dimethyl carbonate (DMC) and diethyl carbonate (DEC) was investigated. Some tri‐, di‐ and monoorganotin(IV) species (LCN(n‐Bu)2SnCl (1), LCN(n‐Bu)2SnCl.HCl (1a), LCN(n‐Bu)2SnI (2), LCNPh2SnCl (3), LCNPh2SnI (4), LCN(n‐Bu)SnCl2 (5), LCNSnBr3 (6) and [LCNS
研究了所选的C,N螯合的有机锡(IV)化合物(例如卤化物和三氟乙酸盐)对碳酸二甲酯(DMC)和碳酸二乙酯(DEC)的潜在催化活性。一些三,二和单有机锡(IV)物种(L CN(n- Bu)2 SnCl(1),L CN(n- Bu)2 SnCl.HCl(1a),L CN(n- Bu)2 SnI (2),L CN Ph 2 SnCl(3),L CN Ph 2 SnI(4),L CN(n- Bu)SnCl 2(5),LCN SNBR 3(6)和[L CN的Sn(OC(O)CF 3)] 2(μ-O)(μ-OC(O)CF 3)2(7))的轴承将L CN部分(L CN =评估了2-(N,N-二甲基氨基甲基)苯基-)作为DMC和DEC与各种取代苯胺反应的催化剂。研究了4和7对对位取代苯酚DMC衍生化的催化活性,以与标准碱K 2 CO 3进行比较。/ Silcarbon K835催化剂(催化剂8)。通过多