中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1-methyl-3H-naphtho[2,1-b]pyran-3-one | 21568-13-8 | C14H10O2 | 210.232 |
3-氧代-3H-萘并[1,2-b]吡喃-1-乙酸 | 3(H)-oxonaphtho<2,1-b>pyran-1-acetic acid | 33739-01-4 | C15H10O4 | 254.242 |
Bromination of 1-methylbenzo[f]chromen-3-one with N-bromosuccinimide gives 2-bromo-1-methylbenzo[f]chromen-3-one which, on condensation with different primary aromatic amines, gives tetracyclic aza-naphthalen-9-ones. Condensation of 2-bromo-1-methylbenzo[f]chromen-3-one with different secondary cyclic amines also gives tetracyclic oxa-naphthalen-9-one. The formation of 8-aza-naphthalen-9-one and 7,8-dioxa-naphthalen-9-one is confirmed by their single crystal analyses.