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Title Transcription
ユウキ チオリンサン エステル ルイ ノ カスイ ブンカイ ハンノウ ニオヨボス シクロデキストリン ドウ 2 サクタイ ノ エイキョウ
Title Alternative (English)
Effect of Cyclodextrin-Cu(II) Complexes on the Hydrolysis of Phosphorothionate Esters
File
language
jpn
Author
Mochida, Kazuo
Ozoe, Yoshihisa
Iwasaki, Hitoshi
Matsui, Yoshihisa
Description
The effect of α- and β-cyclodextrin-Cu(II) (1 : 2) complexes on the hydrolysis of phosphorothionate esters was examined in 1.0 M NaOH solution at 25℃. The β-cyclodextrin-Cu(II) complex remarkably decelerated the hydrolysis of fenitrothion, methyl parathion, and parathion. The corresponding α-cyclodextrin complex also remarkably decelerated the hydrolysis of methyl parathion and parathion, although it slightly accelerated the reaction of fenitrothion. Each reaction proceeds via the prior formation of an adduct between the phosphorothionate ester and the complex, followed by the nucleophilic attack of the hydroxide ion on the reaction site of the ester included within the void space of the complex. The deceleration of the reaction may be caused by the retardation of the nucleophilic attack of the hydroxide ion by the cyclodextrin-ring in the complex. On the basis of the observed equilibrium and kinetic parameters involved in the present reaction mechanism, the orientation of the esters within the complex cavity was discussed.
Journal Title
Bulletin of the Faculty of Agriculture, Shimane University
Volume
13
Start Page
190
End Page
194
ISSN
0370940X
Published Date
1979-12-15
NCID
AN00108015
Publisher
島根大学農学部
Publisher Aalternative
Shimane University, Faculty of Agriculture
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Life and Environmental Science
Remark
開学30周年記念号
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