中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1-hydroxy-2-(prop-2'-enyl)-5-(prop-2''-enyloxy)anthraquinone | 113681-17-7 | C20H16O4 | 320.345 |
蒽绛酚 | 1,5-dihydroxyanthraquinone | 117-12-4 | C14H8O4 | 240.215 |
—— | 1,5-bis(prop-2'-enyloxy)anthraquinone | 113681-15-5 | C20H16O4 | 320.345 |
—— | 1-hydroxy-5-(prop-2'-enyloxy)anthraquinone | 160697-61-0 | C17H12O4 | 280.28 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1,5-dimethoxy-2-(prop-2'-enyl)anthraquinone | 160697-63-2 | C19H16O4 | 308.334 |
—— | 1,5-dimethoxy-9,10-dioxo-9,10-dihydroanthracene-2-carbaldehyde | 125379-55-7 | C17H12O5 | 296.279 |
—— | 1,5-dimethoxy-2-(prop-1'-enyl)anthraquinone | 240402-96-4 | C19H16O4 | 308.334 |
Syntheses of C2 anthraquinone aldehydes from the commercially availableanthraru¯n (1) have been investigated. A synthesis of the keto aldehyde(2) in nine steps and 73% overall yield was achieved. Syntheses of (2)exploiting selective oxidations of either a C-boundallyl group by Wacker oxidation to introduce the methyl keto functionality orof a C-bound prop-1-enyl moiety by dihydroxylation andoxidative cleavage to generate the C2 formyl group were also developed. Thealdehyde (27) was synthesized in seven steps and in 81% overall yieldfrom (1), and syntheses of the phenolic aldehydes (33), (34), and (35), the C1benzyloxy aldehyde (36) and the anthracene aldehyde (37) were also developed.
Fridamycin E (1) has been synthesized in six steps from the anthrarufin mono(chloroallyl) ether (10). The synthesis was based on a titanium-mediated aldol-like addition of a (-)- menthyl acetate enolate to the ketone (9). Similar additions to the aldehydes (23) and (25) are reported.