Novel Approach to the Synthesis of 6??Substituted 5, 6??Dihydro??2 (2H)??pyranones
C Fehr, J Galindo, G Ohloff
Index: Fehr, Charles; Galindo, Jose; Ohloff, Guenther Helvetica Chimica Acta, 1981 , vol. 64, # 5 p. 1247 - 1256
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Citation Number: 35
Abstract
Abstract Easily accessible dihydropyrans 9, 10, 12 and 19 are precursors for the synthesis of 6-substituted 5, 6-dihydro-2 (2H)-pyranones and 6-substituted tetrahydro-2-pyranones. Syntheses of massoia lactone (3), argentilactone (5), tuberolactone (4) and jasmine lactone (2) from acrolein (6), acrolein dimer (7) or glutaraldehyde (16) are described.
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