中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 9-methyl-Δ5(10)-octalin-1-ol-6-one | 4242-00-6 | C11H16O2 | 180.247 |
—— | acetic acid (1S*,8aS*)-(+/-)-8a-methyl-6-oxo-1,2,3,4,6,7,8,8a-octahydronaphthalen-1-yl ester | 32042-78-7 | C13H18O3 | 222.284 |
—— | (+/-) (1α,6α,8aα)-1,2,3,4,6,7,8,8a-octahydro-8a-methyl-1,6-naphthalenediol | 65083-11-6 | C11H18O2 | 182.263 |
(S)-(+)-4,4a,5,6,7,8-六氢-4a-甲基-2(3H)-萘酮 | (S)-(+)-4,4a,5,6,7,8-hexahydro-4a-methyl-2(3H)-naphthalenone | 4087-39-2 | C11H16O | 164.247 |
9-甲基-delta-5(10)-辛-1,6-二酮 | Wieland-Miescher ketone | 20007-72-1 | C11H14O2 | 178.231 |
(S)-(+)-3,4,8,8a-四氢-8a-甲基-1,6-(2H,7H)-萘醌 | (S)-8a-methyl-3,4,8,8a-tetrahydro-2H,7H-naphthalene-1,6-dione | 33878-99-8 | C11H14O2 | 178.231 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (R)-1,2,3,4,8,8a-hexahydro-1β-hydroxy-8aβ-methyl-6-(7H)-naphthalenone | 34996-06-0 | C11H16O2 | 180.247 |
—— | 5-(methoxymethoxy)-4a-methyl-4,4a,5,6,7,8-hexahydronaphthalen-2(3H)-one | 1242641-78-6 | C13H20O3 | 224.3 |
—— | (4aS,5S)-5-tert-Butoxy-4a-methyl-4,4a,5,6,7,8-hexahydro-3H-naphthalen-2-one | 53662-94-5 | C15H24O2 | 236.354 |
—— | acetic acid (1S*,8aS*)-(+/-)-8a-methyl-6-oxo-1,2,3,4,6,7,8,8a-octahydronaphthalen-1-yl ester | 32042-78-7 | C13H18O3 | 222.284 |
—— | (8S*, 8aS*)-8-tert-butyldimethylsilyloxy-8a-methyl-1,5,6,7,8,8a-hexahydronaphthalen-3(2H)-one | 80800-69-7 | C17H30O2Si | 294.51 |
—— | (4aS,5S)-5-(tert-Butyl-dimethyl-silanyloxy)-4a-methyl-4,4a,5,6,7,8-hexahydro-3H-naphthalen-2-one | 274914-64-6 | C17H30O2Si | 294.51 |
—— | [(1S,8aS)-8a-methyl-6-oxo-1,2,3,4,7,8-hexahydronaphthalen-1-yl] chloromethanesulfonate | 182243-72-7 | C12H17ClO4S | 292.784 |
—— | (+)-(4aS,5S)-5-benzoyloxy-4,4a,5,6,7,8-hexahydro-4a-methylnaphthalen-2(3H)-one | 32042-79-8 | C18H20O3 | 284.355 |
—— | 5β-benzoyloxy-4aβ-methyl-4,4a,5,6,7,8-hexahydro-3H-naphthalen-2-one | 32042-79-8 | C18H20O3 | 284.355 |
—— | (1S,8aS)-8a-methylspiro[1,2,3,5,7,8-hexahydronaphthalene-6,2'-1,3-dioxolane]-1-ol | —— | C13H20O3 | 224.3 |
(S)-(+)-3,4,8,8a-四氢-8a-甲基-1,6-(2H,7H)-萘醌 | (S)-8a-methyl-3,4,8,8a-tetrahydro-2H,7H-naphthalene-1,6-dione | 33878-99-8 | C11H14O2 | 178.231 |
In a new approach to the synthesis of wedeligenin , an A/B-ring intermediate (13a) has been synthesized. The β- keto ester (15) was readily prepared from Wieland-Meischer ketone in three steps. Baeyer-Villiger oxidation of (15) and subsequent methylenation provided an alkene (16) which contained the malonyl substituent, later to become the gem-diester of (13a). Regiospecific conversion of the alkene into a bromohydrin followed by cyclization afforded (13a). This provided an A/B-ring intermediate which could be further elaborated to allow C/D-ring annulation.