Pd (II)-catalyzed acetalization of terminal olefins with electron-withdrawing groups in supercritical carbon dioxide: selective control and mechanism
ZY Wang, HF Jiang, XY Ouyang, CR Qi, SR Yang
Index: Wang, Zhao-Yang; Jiang, Huan-Feng; Ouyang, Xiao-Yue; Qi, Chao-Rong; Yang, Shao-Rong Tetrahedron, 2006 , vol. 62, # 42 p. 9846 - 9854
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Citation Number: 26
Abstract
Pd (II)-catalyzed acetalization of terminal olefins with electron-withdrawing groups was carried out smoothly in supercritical carbon dioxide under oxygen atmosphere when polystyrene-supported benzoquinone (PS-BQ) or CuII (CuI) chloride was employed as cocatalyst. The higher selectivity was achieved, without any chlorinated by-product detected, when using PS-BQ instead of CuII (or CuI) chloride. PS-BQ could be recycled with ...
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