期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 3, 期 1, 页码 119-125出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.200700255
关键词
allylation; C-C activation; isomerization; retro reactions; rhodium
The treatment of an aldehyde with a tertiary homoallylic alcohol at 100-250 degrees C in the presence of cesium carbonate and a rhodiurn catalyst leads to allyl transfer from the homoallylic alcohol to the aldehyde. The process includes Rhmediated retroallylation to form an allyl rhodium species as the key intermediate. The homoallylic alcohol formed initially through allyl transfer is converted under the reaction conditions into the corresponding saturated ketone when bulky ligands are used. Microwave heating at 250 degrees C accelerates the reaction significantly.
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