6-Chloro-2(2H)-pyranone, which can be prepd. in high yield from com. available trans-glutaconic acid, undergoes facile Pd/Cu-catalyzed reaction with various 1-alkynes to give rise to the corresponding 6-(1-alkynyl)-2(2H)-pyranones in moderate to good yields. These last hitherto unknown compds. were used as direct precursors to 6-alkyl- and 6-[(Z)-1-alkenyl]-2(2H)-pyranones.
6-Chloro-2(2H)-pyranone: a new 2(2H)-pyranone synthon
BELLINA, FABIO;CARPITA, ADRIANO;ROSSI, RENZO
2003-01-01
Abstract
6-Chloro-2(2H)-pyranone, which can be prepd. in high yield from com. available trans-glutaconic acid, undergoes facile Pd/Cu-catalyzed reaction with various 1-alkynes to give rise to the corresponding 6-(1-alkynyl)-2(2H)-pyranones in moderate to good yields. These last hitherto unknown compds. were used as direct precursors to 6-alkyl- and 6-[(Z)-1-alkenyl]-2(2H)-pyranones.File in questo prodotto:
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