期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 348, 期 4-5, 页码 523-530出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200505225
关键词
catalyst recycling; Heck reaction; magnesium-lanthanum mixed oxide; palladium
A new, reusable palladium/magnesium-lanthanum mixed oxide catalyst has been found to exhibit unprecedented high catalytic activity and selectivity for the heterogeneous Heck cross-coupling reaction of aryl halides with alkenes. The nature of the aryl halides has a determinate effect on the reaction yield. The corresponding reactions of a wide range of activated and non-activated aryl bromides and chlorides furnished the arylated product with high E/Z isomer ratios even already at 80 degrees C. The stereoselectivity depended on the nature of the olefins.
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