(19Z)-Anhydrovobasinediol
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(19Z)-Anhydrovobasinediol ??
- ???
- 20So C (dec.).
- ?? ?
- 490.6±45.0 °C(Predicted)
- ??
- 1.213±0.06 g/cm3(Predicted)
- ???
- Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
- ??? ??
- ??
- ?? ?? (pKa)
- 17.39±0.20(Predicted)
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(19Z)-Anhydrovobasinediol C??? ??, ??, ??
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An alkaloid which occurs in Tabernaemontana psychotrifolia H.B.K., this base is laevorotatory having [α]>D - 243° and gives an ultraviolet spectrum with absorption maxima at 222, 2S0 and 296 mp. with a shoulder at 272 mil. The alkaloid may be purified by recrystallization from Me2CO followed by sublima_x0002_tion. It yields a crystalline methiodide, m.p. 272-4°C (dec.) which has an ultraviolet spectrum containing an absorption maximum at 222 mp. and a shoulder at 276 mp.. On catalytic hydrogenation with Pt02 as catalyst it gives the dihydro derivative, m.p. 191-3°C, furnishing a methiodide, m.p. 265-SoC (dec.). Zn dust distillation yields 3-ethylpyridine and 3-methyl-5-ethylpyridine.?? ??
Benoin, Burnell, Medina., Tetrahedron Lett., 807 (1968)Burnell, Medina., Can. J. Chem., 49,307 (1971)
(19Z)-Anhydrovobasinediol ?? ?? ? ???
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(19Z)-Anhydrovobasinediol ?? ??
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