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On the mechanism of the lewis acid catalyzed cyclocondensation of aldehydes with siloxydienes

โœ Scribed by Eric R. Larson; Samuel Danishefsky

Book ID
104220736
Publisher
Elsevier Science
Year
1982
Tongue
French
Weight
195 KB
Volume
23
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Competing cycloaddition versus aldolization-cycllzat.ion processes are demonstrated in the formation of 6-styryl-5,64lhydro-y-pyrone uza the BF catalyzed reaction of cinnamaldehyde with trmrs-1-methoxy 3-tnmethylsllyloxy-1,3-butadldne

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A hetero Gels-Alder route to 5,6-dihydro-y-pyridones is described. Recently, we described the Lewis Acid catalyzed cyclocondensation of aldehydes with siloxydienes to give 5,6-dihydro-y-pyrones. It was of interest to attempt to extend this reaction to include the imino linkage. Certainly, there have

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