Browsing by Author "GONZALEZ, MF"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
- ItemSTUDIES ON QUINONES .21. REGIOSELECTIVE SYNTHESIS OF TETRACYCLIC QUINONES RELATED TO RABELOMYCIN(1991) VALDERRAMA, JA; ARAYA-MATURANA, R; GONZALEZ, MF; TAPIA, R; FARINA, F; PAREDES, MCThe Diels-Alder reaction of the hydroxyquinones 5, 11 and 16 with (E)-1-trimethylsiloxybuta-1,3-diene 3 afforded the corresponding mixture of the regioisomers 6a,b, 12a,b and 17a,b in the ratios 9:1, 8:1 and 11:1, respectively. From these mixtures, the quinones 8, 14 and 19 were obtained by hydrolysis and subsequent oxidation.
- ItemSTUDIES ON QUINONES .26. THE REACTION OF METHACROLEIN N,N-DIMETHYLHYDRAZONE WITH ACTIVATED BENZOQUINONES(1993) VALDERRAMA, JA; GONZALEZ, MFA one-step formation of 5-hydroxy-2,3-dihydrobenzo[b]furans by a [3+2] addition process of methacrolein N,N-dimethylhydrazone (4) with a variety of 1,4-benzoquinones bearing activating groups is reported.