N-tert-Butyl-${\alpha}$ 수식 이미지-Phenylnitrone 유도체의 가수분해 반응메카니즘과 반응속도론적 연구

• 영문명: A Study on the Kinetics and Mechanism of Hydrolysis of N-tert-Butyl-${\alpha}$ 수식 이미지-Phenylnitrone Derivatives
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 곽천근(Gwak, Chun-Geun) 이광일(Lee, Kwang-Il)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제15권 제2호, 1~9쪽, 전체 9쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 1998.06.30

영문 초록

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.