Beceived inlISA 6 Jnly1970; received inI0Kfor~blicetiom 3 Septe&er IgO) Tbe 1,3-dipolar cycloadditioa reectioe has been the sobject of tiaz eabaustive ard elegant iaveatigationa of Eluiagen sad w-a~rkers.~ Tkse reactions shap all the cbarecteristics of coacerted reactions, iacluding stereospecificit
ChemInform Abstract: Trapping of 6,6-Dimethylisobenzofulvene by Its 1,3-Dipolar Precursor: A Rare Example of a Dipolar [6 + 4] Cycloaddition.
β Scribed by Ronald N. Warrener; Malcom L. A. Hammond; Douglas N. Butler
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 33 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
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A series of new 3-(4-oxo-4H-chromen-3-yl)-3a,6a-dihydropyrrolo [3,4-d]isoxazole-4,6-dione have been synthesized by the reaction of N-arylmaleimides with nitrile oxide, prepared from Ξ±-chloro-4-oxo-4Hchromen-carbaldehyde oximes in situ through 1,3-dipolar cycloaddition reaction. The structures of all