乙炔双羰基化催化合成丁(烯)二酸二丁酯
Fine Chemicals（2019）
Abstract
以乙炔(C2H2)、CO和正丁醇为原料,采用PdBr2为主催化剂,在常压、55℃条件下,双羰基化一步合成丁(烯)二酸丁酯.考察了催化剂用量、助剂种类及用量、溶剂种类、反应温度和反应时间对丁(烯)二酸二丁酯收率的影响.结果表明,在PdBr2用量0.04 g,n(PdBr2):n(LiBr)=1:8,甲基磺酸0.1 mL,30 mL乙腈为溶剂,n(C2H2):n(CO)=1:2,101 kPa,55℃,反应3 h的反应条件下,丁(烯)二酸二丁酯的收率达到76.11％.
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