MODIFICATION OF HYDROXYBENZOPYRANOIDS - FACILE DEOXYGENATION OF 2,2-DIMETHYL-7-HYDROXY-4-CHROMANONES AND A NEW APPROACH TO THEIR NOVEL MERCAPTO ANALOGS
P. Sebok et al., MODIFICATION OF HYDROXYBENZOPYRANOIDS - FACILE DEOXYGENATION OF 2,2-DIMETHYL-7-HYDROXY-4-CHROMANONES AND A NEW APPROACH TO THEIR NOVEL MERCAPTO ANALOGS, Journal of organic chemistry, 59(21), 1994, pp. 6318-6321
A facile deoxygenation of a systematic series of substituted 2,2-dimet
hyl-7-hydroxy-4-chromanones via their sulfonate, isourea, and thiocarb
amate derivatives is reported. The synthesis of novel 2,2-dimethyl-7-m
ercapto-4-chromanones has been accomplished by the hydrolysis of the c
orresponding thiocarbamates. The scope and limitations of different de
oxygenation procedures in the case of these hydroxybenzopyranoids are
also presented.