中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
6,7-二甲氧基-1(3h)-异苯并呋喃酮 | meconin | 569-31-3 | C10H10O4 | 194.187 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ethyl 2,3-dimethoxy-6-methylbenzoate | 144192-17-6 | C12H16O4 | 224.257 |
2,3-二甲氧基-6-甲基苯甲酸 | 2,3-dimethoxy-6-methylbenzoic acid | 5653-57-6 | C10H12O4 | 196.203 |
The lithiation of methoxy- and methylenedioxy-bemyl alcohols is described; subsequent reactions with ethyl chloroformate and carbon dioxide to form phthalides have been investigated, and are compared with metallation-carboxylation of alternative substrates. The preparation of phthalideisoquinoline analogues by this method proceeds only in low yields due to the acidity of the benzylic position in the benzylisoquinoline precursor.