Cobalt-Catalyzed Silylcarbonylation of Unactivated Secondary Alkyl Tosylates at Low Pressure
作者:Joan E. Roque Peña、Erik J. Alexanian
DOI:10.1021/acs.orglett.7b02117
日期:2017.9.1
catalytic preparation of silyl enol ethers from unactivated secondary alkyl tosylates is reported. An inexpensive cobalt catalyst is used under mild conditions with low pressures of carbon monoxide. Nucleophilic, anionic cobalt carbonyls facilitate the catalytic activation of a range of alkyl tosylates. The silylcarbonylation offers a practical approach to synthetically valuable silyl enol ethers from simple
据报道由未活化的仲烷基甲苯磺酸酯催化制备甲硅烷基烯醇醚。在温和的条件下,在一氧化碳的低压下使用便宜的钴催化剂。亲核性的阴离子羰基钴促进了一系列烷基甲苯磺酸盐的催化活化。甲硅烷基羰基化为从简单的起始原料合成有价值的甲硅烷基烯醇醚提供了一种实用的方法。