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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 (Ⅲ) n-Propyl-and tert-Butylmercaptan 산성용매 속에서 β-Nitrostyrene에 대한 Mercaptan의 친핵성 첨가반응에 관한 연구 (Ⅲ) n-Propylmercaptan 및 tert-Butylmercaptan과의 반응
Author	Ok-Hyun Park, Tae-Rin Kim 박옥현, 김태린
Keywords
Abstract	친핵성 첨가반응에 있어서의 nucleophile의 반응성을 정량적으로 연구하고자 전보에 이어 여러 pH에서 3,4-methylenedioxy- -nitrostyrene에 n-propyl-과 tert-butylmercaptan을 첨가시켜 그의 첨가반응속도상수를 측정한 결과 n-propylmercaptide ion과 tert-butylmercaptide ion에 대해 각각 1.26x10(8)과 3.98x10(6)M-2,sec-1을 얻었으며, 또 n-propyl- 및 tert-butylmercaptan 분자의 첨가반응속도상수로서 7.07x10(-3)과 1.50x10(-3)M-2,sec-1 을 각각 얻었다. 한편 염기성 뿐만 아니라 산성용매 속에서도 그의 반응 메카니즘을 잘 설명할 수 있는 전체반응속도식을 구하였다. The rate equations for the nucleophilic addition reactions of n-propyl-and tert-butyl mercaptan to 3,4-methylenedioxy-β-nitrostyrene over wide pH range were obtained. From this equations, the rate constants for n-propyl-and tert-butyl mercaptide ions at high pH were obtained numerically as 1.26×108 and 3.98×106 M-2·sec-1, and for n-propyl-and tert-butyl mercaptan at low pH, 7.07×10-3 and 1.5×10-3 M-1·sec-1 respectively.
Page	177 - 183
Full Text	PDF

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