Highly enantioselective hydrogenation of α -Alkyl- β -arylpropenoic acids over cinchonidine-modified palladium catalyst
摘要：
Enantioselective hydrogenation of ( E )- α -alkyl- β -arylpropenoic acids was studied over the cinchonidine-modified Pd/C under the conditions optimized for ( E )- α , β -diarylpropenoic acids. Enantiomeric excess (ee) of the product was increased by adjusting the α-alkyl group as a properly bulky isopropyl. The ee was as high as 80% when the β -group is phenyl, and reached 86% with p -anisyl group. Stereoselection of those substrates is similar to that of ( E )- α , β -diarylpropenoic acids.
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DOI：
10.1007/s10562-006-0159-y
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年份：
2006
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2008
被引量：12
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