中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3,3'-[6,6'-{(α,ω-pentamethylenedioxy)-di(4-oxo-4H-1-benzopyran-3-yl)}]diacrolein | 1357292-52-4 | C29H24O8 | 500.505 |
On treatment with N-methylglycine in DMF, the chromone-3-carbaldehydes 1a–c produce 3-[3-(2-hydroxybenzoyl)-1-methyl-2,5-dihydropyrrol-2-yl]-4H-chromen-4-ones 10a–c and the deformylated products 9a–c, whereas the bis-chromone derivatives 12a–c give the bis[3-(2-hydroxybenzoyl)-1-methylpyrrole] structures 13a–c.