Direct and efficient conversion of thioamides to benzazole derivatives using N, N'-dibromophenytoin

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ZALI BOEINI HASSAN; AMIRI RUDBARI HADI; Hajibabaei Khadijeh

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Journal: JOURNAL OF APPLIED CHEMISTRY Year:2019 | Volume:14 | Issue:50 Page(s): 105-112

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Information Journal Paper

Title

Direct and efficient conversion of thioamides to benzazole derivatives using N, N'-dibromophenytoin

Author(s)

ZALI BOEINI HASSAN | AMIRI RUDBARI HADI | Hajibabaei Khadijeh | Issue Writer Certificate

Keywords

thioamideQ1

benzoxazoleQ1

benzimidazoleQ1

benzthioazoleQ1

NQ1

N'-dibromo phenytoinQ1

Abstract

A novel and efficient method has been developed for preparation of benzoxazole, benzimidazole and benzthioazole via one-pot condensation of N, N'-disubstituted thioamides with 2-aminophenol, 2-aminothiophenol, and 1, 2-diaminobenzene using N, N'-dibromo phenytoin as a mild oxidant. Hence, thioamides were reacted with 2-aminophenol, 2-aminothiophenol, and 1, 2-diaminobenzene respectively in the presence of N, N'-dibromo phenytoin in DMF to produce benzoxazole, benzimidazole and benzthioazole derivatives in moderate to good yields. Possibility of synthesis of three different heterocycles which have important industrial, agricultural, and biological applications, is one of the advantages of the presented method. Performing the reaction under very mild temperature and in short time is still another merit of the current method.

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APA: Copy

ZALI BOEINI, HASSAN, AMIRI RUDBARI, HADI, & Hajibabaei, Khadijeh. (2019). Direct and efficient conversion of thioamides to benzazole derivatives using N, N'-dibromophenytoin. JOURNAL OF APPLIED CHEMISTRY, 14(50 ), 105-112. SID. https://sid.ir/paper/383980/en

Vancouver: Copy

ZALI BOEINI HASSAN, AMIRI RUDBARI HADI, Hajibabaei Khadijeh. Direct and efficient conversion of thioamides to benzazole derivatives using N, N'-dibromophenytoin. JOURNAL OF APPLIED CHEMISTRY[Internet]. 2019;14(50 ):105-112. Available from: https://sid.ir/paper/383980/en

IEEE: Copy

HASSAN ZALI BOEINI, HADI AMIRI RUDBARI, and Khadijeh Hajibabaei, “Direct and efficient conversion of thioamides to benzazole derivatives using N, N'-dibromophenytoin,” JOURNAL OF APPLIED CHEMISTRY, vol. 14, no. 50 , pp. 105–112, 2019, [Online]. Available: https://sid.ir/paper/383980/en

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