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 carbonmonoxide. Nucleophilic, anionic cobaltcarbonyls facilitate the catalytic activation of a range of alkyl tosylates. The silylcarbonylation offers a practical approach to synthetically valuable silyl enol ethers from simple