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ChemInform Abstract: 1,3-Dipolar Cycloaddition Chemistry of 2,3-Bis(phenylsulfonyl)-1,3- diene with Diazoalkanes.

✍ Scribed by A. PADWA; M. MESKE; A. RODRIGUEZ

Book ID
112023353
Publisher
John Wiley and Sons
Year
2010
Weight
31 KB
Volume
26
Category
Article
ISSN
0931-7597

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The 3-methylenecephams underwent I .3-dipolar cycloaddition reactions with diazomethane to give spiropyrazolinocephams in a completely stereo-and regioselective manner. Thermal breakdown of these I-pyrazolines led to spirocyclopropane and vinyl derivatives.