Studies on the Aromatic Dihydrazines (Ⅱ). Condensation Reaction Between p-Phenylenedihydrazine and Dicarbonyl Compounds 


Vol. 20,  No. 6, pp. 500-506, Dec.  1976


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  Abstract

파라페닐렌디히드라진(PPDH)과 디카르보닐화합물을 반응시켜서 생기는 축합생성물들의 구조를 밝혔다. 아세틸아세톤과의 반응에서는 고리화합물인 1,1'-p-페닐린-bis-3-메틸-5-피라졸론이 얻어졌으며, 디아세틸과의 반응에서는 역시 고리화합물인 1,1'-p-페닐렌-bis-메틸-5-피라졸론이 얻어졌으며, 디아세틸과의 반응에서는 디아세틸 p-페닐렌디히라존이 생성되었다. 그 밖의 디카르보닐화합물에서 얻은 축합생성물은 불안정하여 구조결정이 어려웠다. Structures of the products obtained from the condensation reaction between p-phenylenedihydrazine(PPDH) and dicarbonyl compounds were determined, From the reaction with PPDH, acetylacetone produced a cyclic compound, 1,1'-p-phenylene-bis-3, 5-dimetylpyrazole; ethylacetoacetate also formed a cyclic compound, 1,1'-p-phenylene-bis-3-methyl-5-pyrazolone; diacetyl yielded a simple dihydrazone, diacetyl p-phenylenedihydrazone. Condensation products from the other dicarbonyl compounds being of generally unstable, the structure determination was quite difficult.

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  Cite this article

[IEEE Style]

W. Y. Lee, "Studies on the Aromatic Dihydrazines (Ⅱ). Condensation Reaction Between p-Phenylenedihydrazine and Dicarbonyl Compounds," Journal of the Korean Chemical Society, vol. 20, no. 6, pp. 500-506, 1976. DOI: .

[ACM Style]

Woo Young Lee. 1976. Studies on the Aromatic Dihydrazines (Ⅱ). Condensation Reaction Between p-Phenylenedihydrazine and Dicarbonyl Compounds. Journal of the Korean Chemical Society, 20, 6, (1976), 500-506. DOI: .

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ISSN(Print) 1017-2548
ISSN(Online) 2234-8530