| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| (4bS)-反式-8,8-三甲基-4b,5,6,7,8,8a,9,10-八氢-1-异丙基菲-2-醇 | trans-totarol | 511-15-9 | C20H30O | 286.458 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | 13-acetoxytotara-8,11,13-trien-7-one | 1048-23-3 | C22H30O3 | 342.478 |
| —— | totara-8,11,13-triene-7β,13-diol | 24338-19-0 | C20H30O2 | 302.457 |
| (4bS,8aS,10R)-4b,5,6,7,8,8a,9,10-八氢-4b,8,8-三甲基-1-(1-甲基乙基)-2,10-菲二醇 | 7α-hydroxytotarol | 6811-52-5 | C20H30O2 | 302.457 |
| —— | 7-oxototarol | 13476-32-9 | C20H28O2 | 300.441 |
| —— | 6α-bromo-13-hydroxytotara-8,11,13-trien-7-one | 19912-95-9 | C20H27BrO2 | 379.337 |
| —— | 7-Oxo-Δ5-dehydro-totarol | 3810-52-4 | C20H26O2 | 298.425 |
Reaction of 7-oxototara-8,11,13-trien-13-yl acetate (3) with acetic anhydride-perchloric acid affords the γ-pyrone (8) in addition to the previously reported acetyl derivative (4). Baeyer–Villiger oxidations of the ketones (3) or (5) have given starting material or complex mixtures, but the ε-lactone (9) and the rearranged product (11) were isolated from two experiments with (3). Oxidation of 13-methoxytotara-8,11,13-triene (2) with Jones reagent gives the 7-oxo derivative (5) and a low yield of a ring B opened substituted p-benzoquinone (13). Pathways to (11) and (13) are proposed.