中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2,3,4,9-tetrahydro-9-(2-hydroxy-4,4-dimethyl-6-oxo-1-cyclohexen-1-yl)-3,3-dimethyl-1H-xanthen-1-one | 19744-87-7 | C23H26O4 | 366.457 |
A new concept of catalysts which are prepared from renewable materials is demonstrated for the synthesis of coumarins and chromenes.