A facile deoxygenation of a systematic series of substituted 2,2-dimethyl-7-hydroxy-4-chromanones via their sulfonate, isourea, and thiocarbamate derivatives is reported. The synthesis of novel 2,2-dimethyl-7-mercapto-4-chromanones has been accomplished by the hydrolysis of the corresponding thiocarbamates. The scope and limitations of different deoxygenation procedures in the case of these hydroxybenzopyranoids are also presented.
Apsimon, J. W.; Herman, L. W.; Huber, C., Canadian Journal of Chemistry, 1985, vol. 63, p. 2589 - 2596
作者:Apsimon, J. W.、Herman, L. W.、Huber, C.
DOI:——
日期:——
LEVAI, ALBERT;TOTH, GABOR;SZOLOSY, ARON;TIMAR, TIBOR, MONATSH. CHEM., 121,(1990) N, C. 403-411
作者:LEVAI, ALBERT、TOTH, GABOR、SZOLOSY, ARON、TIMAR, TIBOR
DOI:——
日期:——
Seboek Peter, Timar Tibor, Eszenyi Tibor, J. Org. Chem, 59 (1994) N 21, S 6318- 6321