5-氨基噻吩四乙酯的相转移催化合成
Synthesis of Tetraethyl Ester of 5-Aminothiophene by Phase Transfer Catalysis
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Abstract: OBJECTIVE Synthesis of tetraethyl ester of 5-aminothiophene by phase transfer catalysis was studied,and the best catalysis condition was also examinated.METHODS First,5-aminothiophene was synthesized from diethyl acetone-1,3-dicarboxylate by cyclization.T