Diastereoselective three-component Mannich reaction catalyzed by silica-supported ferric hydrogensulfate
作者： Hossein Eshghi , Mohammad Rahimizadeh , Mohsen Hosseini , Aida Javadian-Saraf
DOI: 10.1007/S00706-012-0800-Y
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摘要: A highly anti-diastereoselective three-component Mannich reaction of aromatic amines and aldehydes with cyclohexanone in the presence silica-supported ferric hydrogensulfate has been developed. The best selectivity was obtained where there were electron-donating groups on both aldehyde amine. Selectivity decreases when electron-withdrawing are present aldehyde; these cases is improved if an group
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