MODIFICATION OF HYDROXYBENZOPYRANOIDS - FACILE DEOXYGENATION OF 2,2-DIMETHYL-7-HYDROXY-4-CHROMANONES AND A NEW APPROACH TO THEIR NOVEL MERCAPTO ANALOGS

Citation
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
Citations number
40
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
00223263
Volume
59
Issue
21
Year of publication
1994
Pages
6318 - 6321
Database
ISI
SICI code
0022-3263(1994)59:21<6318:MOH-FD>2.0.ZU;2-A
Abstract
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.