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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 31, 2001 - Issue 14
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Original Articles

DEPROTECTION OF 2-PYRIDYL SULFONYL GROUP FROM PYRIDINE-2-SULFONAMIDES BY MAGNESIUM IN METHANOL

Chwang Siek Pak Korea Research Institute of Chemical Technology, Yusung-Ku Jang-Dong 100, Taejeon, 305-600, S. Korea
&
Dong Sung Lim Korea Research Institute of Chemical Technology, Yusung-Ku Jang-Dong 100, Taejeon, 305-600, S. Korea
Pages 2209-2214 | Received 12 May 2000, Published online: 09 Nov 2006
 
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Abstract

Convenient deprotection of various pyridine-2-sulfonamides prepared by sulfonylation of primary and secondary amines with pyridine-2-sulfonylchloride was achieved by magnesium in methanol at 0°C to the corresponding amines in good yield.

ACKNOWLEDGMENT

We thank for financial support of Ministry of Science and Technology and helpful comments of Dr. Dennis Jackman (Bayer, Kansas City).

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