中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
野黄芩素 | scutellarein | 529-53-3 | C15H10O6 | 286.241 |
黄芩素 | 5,6,7-trihydroxy-2-phenyl-4H-1-benzopyran-4-one | 491-67-8 | C15H10O5 | 270.241 |
红盏花素 | scutellarin | 27740-01-8 | C21H18O12 | 462.367 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 10-hydroxy-7-(4'-oxypropylphenyl)-2,3-dihydro-9H-[1,4]-dioxo[2,3-g]benzopyran-9-one | —— | C19H14O7 | 354.316 |
—— | 4-(4-(10-hydroxy-9-oxo-2,3-dihydro-9H-[1,4]dioxino[2,3-g]chromen-7-yl)phenoxy)butyl 4-(bis(2-chloroethyl)amino)benzoate | —— | C32H31Cl2NO8 | 628.506 |
A facile methodology has been developed to build carbon nitrogen double bond from ketones promoted by the hydroxyl groups in β-phenol hydroxy ketone. It is noteworthy that the halogenated β-phenol hydroxy ketone can chemoselectively react with the amine to afford halogenated phenol imine. It is suitable for certain natural products and also suitable for water-based heteroamines. The method possesses low toxicity and is widely applicable. This strategy is usually used to obtain moderate to good yields of aromatic amine Schiff base.