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A facile and stereoselective synthesis of dienediones and 6-oxo-2,4-dienoic esters

✍ Scribed by Cheng Guo; Xiyan Lu

Publisher
Elsevier Science
Year
1992
Tongue
French
Weight
220 KB
Volume
33
Category
Article
ISSN
0040-4039

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✦ Synopsis

Ostopanic acid and ethyl 6-oxodocosa-2,4-dienoate were synthesized by a short route based on the palladium catalyzed isomerization of ynone and ynoic ester, respectively, using pent-4-ynal as a starting material.

There $re variouf classes 04f natural products such as alcohols, 1 aldehydes, ketones, and acids containing a conjugated polyene structure, with a specific double-bond geometry being a requirement of primary importance for biological activity. Thus, it is not surprising that considerable effort has been paid in seeking stereoselective methods for the synthesis of such conjugated systems. In the course of our

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