Approach to the synthesis of nogalarol via the cycloaddition of a carbene-chromium complex with a functionalized alkyne
作者:M.F. Semmelhack、Nakcheol Jeong
DOI:10.1016/s0040-4039(00)94579-9
日期:1990.1
The alkyne, 4, prepared stereoselectively in 7 steps from acetyl furan, reacts with (methoxy)(phenyl)carbenepentacarbonylchromium(0), 15, to give the model (16) for nogalarol (1b) in 43% yield.