| prov:value
| - Electron donating groups include such groups as hydroxy, lower alkoxy, including methoxy, ethoxy and the like; lower alkyl, such as methyl, ethyl, and the like; amino, lower alkylamino, di(loweralkyl)amino, aryloxy such as phenoxy; mercapto, lower alkylthio, disulfide (lower alkyldithio) and the like.
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