Browsing by Author "PENA, W"
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- ItemSYNTHESIS OF (-)-12-NOR-DRIM-9(11)-EN-8-ONE A VERSATILE CHIRAL SYNTHON FOR THE PREPARATION OF NATURAL TERPENOIDS(1989) PENA, W; LOPEZ, JT; CORTES, M
- ItemSYNTHESIS OF (-)-ENT-YAHAZUNOL DIMETHYL ETHER(SOCIEDAD CHILENA DE QUIMICA, 1990) CORTES, M; PENA, W; ARMSTRONG, V; LOPEZ, JThe synthesis of (-)-ent-yahazunol dimethyl ether (7) from the unsaturated ketone 2 is described. The present work confirms the proposed absolute configuration of the naturally occuring (-)-yahazunol (1).
- ItemSYNTHESIS OF BOTH EPIMERS OF 8-DEMETHYL AMBROX(EDITIONS SCIENTIFIQUES ELSEVIER, 1992) PENA, W; LOPEZ, JT; CORTES, MThe epimers 2 and 3 of the C-8 demethyl analogues of the known ambergris-type odorant Ambrox have been prepared from the chiral enone 4. The latter nor-sesquiterpene is readily available from (-)drimenol via a previously described synthesis.
- ItemSYNTHESIS OF GAMMA-BICYCLOHOMOFARNESAL AND 14,15,16,20-TETRANORLABDAN-8-BETA-13-DIOL(1992) LOPEZ, J; TRESPALACIOS, C; PENA, W; CORTES, MThe preparation of the ambergris odorant, gamma-bicyclohomofarnesal (1) and 14,15,16,20-tetranorlabdan-8-beta-13-diol (4) from chiral enone 5 is described.