The palladium catalyzed hydrocarboxylation of acetylene with carbon monoxide to acrylic acid under mild conditions
The palladium catalyzed hydrocarboxylation of acetylene with carbon monoxide to acrylic acid under mild conditions
复制标题
DOI：
10.1016/j.molcata.2009.08.008
复制
发表时间：
2009-12-01
影响因子：
--
通讯作者：
Wang, Gong-Ying
中科院分区：
文献类型：
--
作者：
Tang, Cong-Ming;Zeng, Yi;Wang, Gong-Ying
使用由 Pd(OAc)(2) 组成的催化剂体系将乙炔与一氧化碳加氢羧化为丙烯酸。膦配体和酸在温和条件下反应。酸性促进剂、膦配体、水的影响。对反应时间和一氧化碳油的初始分压、乙炔的转化率以及丙烯酸的选择性进行了研究。在所使用的所有配体中，只有二苯基-2-吡啶基膦具有良好的催化活性。磺酸和三氟乙酸作为酸性促进剂表现出优异的性能。还讨论了水和一氧化碳初始分压的影响。在最佳反应条件下，乙炔转化率达到85%，丙烯酸选择性达到99%，TOF达到1011 h(-1)。皇冠版权所有 (C) 2009 由 Elsevier B V 出版 保留所有权利。
Hydrocarboxylation of acetylene with carbon monoxide to acrylic acid has been carried out using a catalyst system consisting of Pd(OAc)(2). Phosphine ligands and acids under the mild conditions. The effects of acidic promoters, phosphine ligands, water. reaction time and the initial partial pressure of carbon monoxide oil the conversion of acetylene as well as the selectivity to acrylic acid have been investigated Among all ligands as used, only diphenyl-2-pyridylphosphine has a good catalytic activity. Sulfonic acids and trifluoroacetic acid as acidic promoters display an excellent performance. Effects of water and the initial partial pressure of carbon monoxide have also been discussed. Under the optimal reaction conditions, 85% conversion of acetylene and 99% selectivity to acrylic acid as well as 1011 h(-1) TOF have been achieved. Crown Copyright (C) 2009 Published by Elsevier B V All rights reserved.