作者:Aline Utaka、Livia N. Cavalcanti、Luiz F. Silva
DOI:10.1039/c4cc00608a
日期:——
hypervalent iodine under mild and metal-free conditions. Carbonyl compounds containing an alpha-acetylene group were obtained in good to excellent yields for several ketones using 1-[(trimethylsilyl)ethynyl]-1,2-benziodoxol-3(1H)-one (TMS-EBX) as an alkynylation agent in the presence of t-BuOK and TBAF in THF as solvent. Under the same conditions, an aldehyde was alkynylated.
在温和无金属的条件下,使用高价碘开发了一种新的酮类亲电α-炔基化新方法。使用1-[((三甲基甲硅烷基)乙炔基] -1,2-苯并恶多酚-3(1H)-一(TMS-EBX)作为炔基化剂,可以很好地获得含有几个化合物的酮的含α-乙炔基的羰基化合物。在THF中存在t-BuOK和TBAF作为溶剂。在相同条件下,醛被炔基化。