BULLETIN OF THE
Article
Aminolysis of O-Phenyl O-Y-substituted-phenyl Thionocarbonates
KOREAN CHEMICAL SOCIETY
and other chemicals used were of the highest quality
available.
5. (a) I. H. Um, J. S. Min, J. A. Ahn, H. J. Hahn, J. Org. Chem.
000, 65, 5659; (b) I. H. Um, S. J. Hwang, S. R. Yoon,
S. E. Jeon, S. K. Bae, J. Org. Chem. 2008, 73, 7671;
c) I. H. Um, J. A. Seok, H. T. Kim, S. K. Bae, J. Org. Chem.
003, 68, 7742; (d) I. H. Um, E. K. Chung, S. M. Lee, Can.
J. Chem. 1998, 76, 729; (e) I. H. Um, S. E. Jeon, J. A. Seok,
Chem. Eur. J. 2006, 12, 1237.
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2013, 34, 2023; (b) Y. J. Song, M. Y. Kim, I. H. Um, Bull.
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2
Kinetics. The kinetic study was performed using a UV–
vis spectrophotometer equipped with a constant tempera-
ture circulating bath to maintain the reaction mixture at
(
2
ꢁ
2
5.0 ꢀ 0.1 C. The reactions were followed by monitor-
ing appearance of the leaving Y-substituted phenoxide
ion. All the reactions were carried out under pseudo-
first-order conditions in which the DBU concentration
was at least 20 times greater than the substrate concen-
tration. Detailed kinetic methods are as reported
7
. (a) I. H. Um, S. R. Yoon, H. R. Park, H. J. Han, Org. Biomol.
Chem. 2008, 6, 1618; (b) I. H. Um, E. Y. Kim, H. R. Park,
S. E. Jeon, J. Org. Chem. 2006, 71, 2302.
5
–8
previously.
8
. I. H. Um, S. J. Hwang, M. H. Baek, E. J. Park, J. Org. Chem.
Product Analysis. Y-Substituted phenoxide ion was liber-
ated quantitatively and identified as one of the products by
comparison of the UV–vis spectra after completion of the
reaction with the authentic sample under the same reaction
conditions.
2
006, 71, 9191.
9
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1
Acknowledgments. This research was supported by Basic
Science Research Program through the National Research
Foundation of Korea funded by the Ministry of Education
1
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(2015-R1D1A1A-01059624).
1
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Bull. Korean Chem. Soc. 2017
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www.bkcs.wiley-vch.de
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