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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 27, 1997 - Issue 20
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Original Articles

Reaction of N-Phenyl-3,5-di-tert-butyl-1,2-benzoquinone Monohydrazone and Some Phosphorus Ylides

Pages 3599-3604 | Received 28 Apr 1997, Published online: 22 Aug 2006
 

Abstract

Treatment of o-quinonemonohydrazone 1 with phosphorus ylides 2a and 2b yielded the pyrazoles 4a,b and 1,4-oxazine 6. Reaction of 1 with 2c and 2d gave exclusively the new ylides 7a,b whereas with ylide 2e, the unexpected pyridazine derivative 11 was obtained.

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