An efficient access to β-ketosulfones <i>via</i> β-sulfonylvinylamines: metal–organic framework catalysis for the direct C–S coupling of sodium sulfinates with oxime acetates
作者:Tuong A. To、Chau B. Tran、Ngoc T. H. Nguyen、Hai H. T. Nguyen、Anh T. Nguyen、Anh N. Q. Phan、Nam T. S. Phan
DOI:10.1039/c8ra02389a
日期:——
A copper-based framework Cu2(OBA)2(BPY) was synthesized and used as a recyclable heterogeneous catalyst for the synthesis of β-sulfonylvinylamines from sodium sulfinates and oxime acetates via direct C–S coupling reaction. The transformation was remarkably affected by the solvent, and chlorobenzene emerged as the best option. This Cu-MOF displayed higher activity than numerous conventional homogeneous
合成了铜基骨架Cu 2 (OBA) 2 (BPY),并将其用作可回收的多相催化剂,用于通过直接C-S偶联反应由亚磺酸钠和肟乙酸酯合成β-磺酰乙烯基胺。转化受到溶剂的显着影响,氯苯成为最佳选择。这种 Cu-MOF 比许多传统的均相催化剂和 MOF 基催化剂表现出更高的活性。该催化剂在β-磺酰乙烯基胺的合成中多次重复使用,催化效率没有明显下降。这些 β-磺酰乙烯基胺很容易通过HCl 水溶液的水解步骤转化为相应的 β-酮砜。据我们所知,这种直接的 C-S 偶联反应以获得 β-磺酰乙烯基胺以前并未使用非均相催化剂进行。