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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 29, 1999 - Issue 24
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Original Articles

Synthesis of Novel Spiro Tetrahydrothiapyrano-Isoxazolines and Pyrazolines

D. Bhaskar ReddyDepartment of Chemistry, Sri Venkateswara University, Tirupati, 517 502, India
,
A. Somasekhar ReddyDepartment of Chemistry, Sri Venkateswara University, Tirupati, 517 502, India
&
A. PadmajaDepartment of Chemistry, Sri Venkateswara University, Tirupati, 517 502, India
Pages 4433-4442 | Received 30 Apr 1999, Published online: 25 Sep 2007
 
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Abstract

Cis 2,6-Diphenyltetrahydrothiapyranone (1) was subjected to Wittig reaction to generate exocyclic double bond (2a-c). Cycloaddition of nitrile oxides and nitrile imines to the latter led to a novel spiro tetrahydrothiapyranoisoxazolines (3a-f) and spiro tetrahydrothiapyranopyrazolines (4a-f)

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