中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-[5-(3,3-dimethyl-5-sulfo-3H-indol-2-yl)-2,4-pentadienylidene]-2,3-dihydro-3,3-dimethyl-5-sulfo-3H-indole-1-hexanoic acid | 312961-83-4 | C31H36N2O8S2 | 628.767 |
A highly stereoselective synthesis of stilbenes ( trans-1,2-diarylethylenes) was achieved under solvent-free conditions from aryl-aldehydes and aromatic substances bearing an activated methyl group in the presence of anhydrous K2CO3 and poly(ethylene glycol). This method avoided the need for completely anhydrous condition and use of a noxious organic solvent.