When guaiol was dehydrated with such reagents as thionyl chloride-pyridine, phosphorus oxychloride-pyridine or potassium bisulphate, the isopropenyl derivative (IIa) was always obtained as a main product, together with a small amount of IIb. Catalytic reduction of IIa in alkaline media afforded α-dihydroguaiene (V), while in neutral or acid media it gave a mixture of V and its double bond isomer (VI)
Oplopanone, a new sesquiterpene alcohol, has been isolated fromOplopanaxjaponicus (NAKAI) NAKAI, and represented by formula I. Its absoluteconfiguration is also discussed.
Minato,H. et al., Chemical and pharmaceutical bulletin, 1965, vol. 13, p. 717 - 720
作者:Minato,H. et al.
DOI:——
日期:——
REDDY, N. KESAVULU;RAO, G. S. KRISHNA, INDIAN J. CHEM., 26,(1987) N 10, 920-922
作者:REDDY, N. KESAVULU、RAO, G. S. KRISHNA
DOI:——
日期:——
Zur Kenntnis der Sesquiterpene. (48. Mitteilung). Synthese des 5-Oxy-1, 6-dimethyl-4-isopropyl-naphtalins, ein Beitrag zur Konstitutionsaufklärung des Guajols