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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 1
BKCSDE 33(1)
January 20, 2012

Title	A Facile One-Pot Synthesis of 1-Substituted Tetrazole-5-thiones and 1-Substituted 5-Alkyl(aryl)sulfanyltetrazoles from Organic Isothiocyanates
Author	Sam Yong Han, Je Woo Lee, Hee-Jung Kim, Yong-Joo Kim, Soon W. Lee, Young Soo Gyoung
Keywords	1-Substituted tetrazole-5-thione, 1-Substituted 5-alkyl(aryl)sulfanyltetrazoles, Isothiocyanate
Abstract	Treatments of organic isothiocyanates (R-NCS) with NaN3 in the presence of pyridine in water at room temperature gave corresponding various organic tetrazole-thiones, [S=CN4(R)] (R = alkyl or aryl). Isolated products are obtained as white or yellow solids in good yields (76-97%). The molecular structure by X-ray diffraction study for one of products shows the proposed formation. In addition, one-pot synthesis of 1- substituted 5-alkyl(or aryl)sulfanyltetrazoles has been demonstrated. Addition of alkyl or aryl halides into the mixture of organic isothiocyanates, NaN3, and pyridine in water at room temperature exclusively formed 1- substituted 5-alkyl(or aryl)sulfanyltetrazoles (S-derivatives) in high yields.
Page	55 - 59
Full Text	PDF

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