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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 40, 2010 - Issue 23
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Original Articles

Synthesis of Substituted Isoxazoles and Pyrazoles from α-α-Dioxoketen Dithioacetals Under Solvothermal Conditions

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Pages 3569-3576 | Received 13 Aug 2009, Published online: 05 Nov 2010
 

Abstract

Some new 3,4,5-substituted isoxazoles, 3,4,5 and 1,3,4,5-substituted pyrazoles were prepared by reaction of α,α-oxoketen dithioacetals with hydroxylamine hydrochloride; phenyl hydrazine and hydrazine hydrate respectively under solvothermal conditions involving an ecofriendly method without any environmental pollution. The yields are in the range of 71–91%. The structure of the new compounds were established upon their elemental analysis, IR, 1H NMR, and 13C NMR.

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