The rate constants of hydrolysis of N-tert-butyl-${\alpha}$ 수식 이미지-phenylnitrone and its derivatives have been determined by UV spectrophotometry at $25^{\circ}C$ 수식 이미지 and a rate equation which can be applied over a wide pH range...
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https://www.riss.kr/link?id=A103118123
1998
-
578
KCI등재후보
학술저널
1-9(9쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
The rate constants of hydrolysis of N-tert-butyl-${\alpha}$ 수식 이미지-phenylnitrone and its derivatives have been determined by UV spectrophotometry at $25^{\circ}C$ 수식 이미지 and a rate equation which can be applied over a wide pH range...
The rate constants of hydrolysis of N-tert-butyl-${\alpha}$ 수식 이미지-phenylnitrone and its derivatives have been determined by UV spectrophotometry at $25^{\circ}C$ 수식 이미지 and a rate equation which can be applied over a wide pH range was obtained. On the basis of rate equations derived and judging from the hydrolysis products obtained and general base and substituent effects, plausible mechanism of hydrolysis in various pH range have been proposed. Below pH 4.5, the hydrolysis was initiated by the protonation and followed by the addition of water to ${\alpha}-carbon$ 수식 이미지. Above pH 10.0, the hydrolysis was proceeded by the addition of hydroxides ion to ${\alpha}-carbon$ 수식 이미지. In the range of 4.5${\sim}$ 수식 이미지10.0 the addition of water to nitrone was rate controlling step.
N-tert-Butyl -α-Phenylnitrone 유도체의 가수분해 반응메카니즘과 반응속도론적 연구
알파술폰 고급지방산 폴리에틸렌글리콘 에스테르류의 계면물성
기능성 폴리이미드막 제작에 따른 수면상의 장쇄 알킬아민의 변위전류에 관한 연구