Shakhovskoi,B.G.; Petrov,A.A., Journal of general chemistry of the USSR, 1967, vol. 37, p. 1298 - 1304
作者:Shakhovskoi,B.G.、Petrov,A.A.
DOI:——
日期:——
Tandem Enyne Metathesis−Metallotropic [1,3]-Shift for a Concise Total Syntheses of (+)-Asperpentyn, (−)-Harveynone, and (−)-Tricholomenyn A
作者:Jingwei Li、Sangho Park、Reagan L. Miller、Daesung Lee
DOI:10.1021/ol802675j
日期:2009.2.5
A tandem reaction sequence involving relay metathesis-induced enyne RCM and metallotropic [1,3]-shift is an effective tool to construct cyclic alkenes with embedded 1,5-dien-3-yne moieties from acyclic precursors containing a 1,3-diyne. Total syntheses of (+)-asperpentyn, (-)-harveynone, and (-)-tricholomenyn A have been accomplished by implementing this metathesis-based tandem reaction sequence as the key step.
Expedient synthesis of conjugated triynes <i>via</i> alkyne metathesis
The first synthesis of conjugated triynes by molybdenum-catalysed alkyne metathesis is reported. Strategic to the success of this approach is the utilization of sterically-hindered diynes that allowed for the site-selective alkyne metathesis to produce the desired conjugated triyne products. The steric hindrance of the alkyne moiety was found to be crucial in preventing the formation of diyne byproducts