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ETHYL 4-ACETYL-5-ANILINO-3-METHYL-2-THIOPHENECARBOXYLATE synthesis

1synthesis methods
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Yield:393802-93-2 47%

Reaction Conditions:

Stage #1: acetylacetonewith potassium carbonate in N,N-dimethyl-formamide at 20; for 1 h;
Stage #2: phenyl isothiocyanate in N,N-dimethyl-formamide at 20; for 2 h;
Stage #3: ethyl bromoacetatewith potassium carbonate in N,N-dimethyl-formamide at 20; for 4 h;Dieckmann type cyclisation;

References:

Sommen;Comel;Kirsch [Synlett,2001,# 11,p. 1731 - 1734]