아미노피리딘의 디아조화 반응
(주)코리아스칼라
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- 2016.04.02
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- 2004.09
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서지정보
ㆍ발행기관 : 한국유화학회
ㆍ수록지정보 : 韓國油化學會誌 / 21권 / 3호
ㆍ저자명 : 정영진
영어 초록
Diazotization of three aminopyridine such as 3-amino-2-chloropyridine, 5-amino-2-chloropyridine, and 3-aminopyridine were investigated. Preparation of pyridinediazonium tetrafluoroborates were carried out employing two different methods. Diazotization of aminopyridines with a chlorine substituent in the pyridine ring were conducted in acidic aqueous solution with sodium nitrite in 70% and 74% yields respectively. 3-Pyridinediazonium tetrafluoroborate without any ring subsituent was unstable in an aquous solution and the diazotiation of 3-aminopyridine was proceded in an anhydrous methylene chloride-etherial BF3 solution with tert-butyl nitrite in 40% yield.
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