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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 46, Number 1
JKCSEZ 46(1)
February 20, 2002 

Synthesis of 2-(Pyrazol-1-yl)quinoxalines and 2,3-Di(pyrazol-1-yl)quinoxalines

2-(Pyrazol-1-yl)quinoxaline류 및 2,3-Di(pyrazol-1-yl)quinoxaline류의 합성
Ho Sik Kim, Won Young Jeong, Kyung Ok Choi, Seong Uk Lee, Sam Tag Kwag, Man Kil Lee

김호식, 정원영, 최경옥, 이성욱, 곽삼택, 이만길
3,6-Dichloro-2-(3,5-dimethylpyrazol-1-yl)quinoxaline(8)또는 6-chloro-3-hydrazino-2-(3,5-dimethylpyrazol-1-yl)quinoxaline(9)을 치환 아닐린류, 슬파제 및 heteroacyl chloride류와 반응시켜 2-(pyrazol-1-yl)quinoxaline류(10-12)를 합성하였다. 그리고 화합물 9를 alkyl (ethoxymethylene)cyanoacetate류와 반응시켜 분자내 고리화반응에 의하여 2,3-di(pyrazol-1-yl)quinoxaline류(13)를 합성하였다.

The reaction of 3,6-dichloro-2-(3,5-dimethylpyrazol-1-yl)quinoxaline(8) or 6-chloro-3-hydrazino-2-(3,5-dimethylpyrazol-1-yl)quinoxaline(9) with substituted anilines, sulfa drugs and heteroacyl chlorides gave 2-(pyrazol-1-yl)quinoxalines(10-12). The reaction of compound 9 with alkyl (ethoxymeth-ylene) cyanoacetates resulted in the intramolecular cyclization to give 2,3-di(pyrazol-1-yl)quinoxalines( 13).

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