2-PENTYLCYCLOPENT-2-EN-1-ONE BY CATALYTIC PAUSON-KHAND REACTION

被引:111
作者
RAUTENSTRAUCH, V [1 ]
MEGARD, P [1 ]
CONESA, J [1 ]
KUSTER, W [1 ]
机构
[1] RHEIN WESTFAL TH AACHEN,INST TECH CHEM & PETROLCHEM,W-5100 AACHEN,GERMANY
来源
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1990年 / 29卷 / 12期
关键词
D O I
10.1002/anie.199014131
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Only 0.0022 mole equivalents of the catalyst [Co2(CO)8] are necessary for the preparation of the cyclopentenone 1 from 1-heptyne. ethylene, and CO with an exchange number of about 220. This first catalytic Pauson-Khand reaction (PKR) with an unstrained alkene affords 1, a precursor of methyl-transdihydrojasmonate that is important for the perfumery industry, in about 50% yield. The main byproducts of this PKR were also identified and possible routes for their formation proposed.
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页码:1413 / 1416
页数:4
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