中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1,5-dimethoxy-9,10-dioxo-9,10-dihydroanthracene-2-carbaldehyde | 125379-55-7 | C17H12O5 | 296.279 |
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.