Palladium-Catalyzed Terminal Alkyne Coupling Reaction of .BETA.-Bromo-.BETA.-phenylthio or .BETA.-Methylthio-.ALPHA.-trifluoromethyl Enol Ethers: a Convenient Synthesis of 2-Sulfonyl-1-buten-3-ynes.
Direct Lithiation and Alkylation of Trifluoromethyl Enol Ethers Having a .BETA.-Sulfur Substituent.
作者:Mitsuhiro YOSHIMATSU、Sayaka KINOSHITA
DOI:10.1248/cpb.48.145
日期:——
The direct lithiation and alkylation of β-sulfur-α-triflutromethyl substituted enol thers 1-3 proceeded to give the alkylated products 4a-f, 5, 6a-c in moderate to high yields.