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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 12, Number 4
JKCSEZ 12(4)
August 20, 1968 

 
Title
The Kinetics and Mechanism of Nucleophilic Addition of Mercaptan to a β-Nitrostyrene in Acidic Media (Ⅱ) Ethylmercaptan and Isopropylmercaptan

산성용매 속에서의 β-Nitrostyrene에 대한 친핵성 첨가반응에 관한 연구 (Ⅱ) Ethylmercaptan과 Isopropylmercaptan과 반응
Author
Tae-Rin Kim, Young-Sang Choi

김태린, 최영상
Keywords
Abstract
Nucleophile의 친핵성첨가반응성을 정량적으로 연구하고자 3,4-methylenedioxy- -nitrstyrene에 대해 우선 ethylmercaptan과 isopropylmercaptan을 써서 그외 첨가반응속도상수를 측정한 결과 ethylmercaptide와 isopropylmercaptide ion에 대해 각각 6.82X10(7)M-2, sec-1, and 2.86X10(7)M-2,sec-1를 얻었으며 염기성 뿐만 아니라 산성 촉매속에서도 그의 반응메카니즘을 잘 설명할 수 있는 속도식도 구하였다.

In order to attempt the quantitative correlation of nucleophilic addition(not nucleopbilic substitution) reactivity of nucleophile, the addition constants of ethyl and isopropyl mercaptan to 3,4-methylenedioxy-β-nitrostyrene were determined and found to be 6.82×107 and 2.86×107 M-2·sec-1 respectively. From the rate equation obtained, the addition mechanism at basic media especially the complex addition mechanism at acidic media which has not been revealed can also be fully explained.

Page
170 - 176
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