ISSN:
1434-4475
Keywords:
Cyclobutenes
;
Dihydroazepines
;
1,3-Dipolar cycloaddition
;
Small ring cleavage
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Cycloaddition of diphenylnitrile ylide to dicyanocyclobutene and of a mesoionic oxazolium-5-olate to isopropylidenecyclobutenone yields dihydroazepine derivatives by cleavage of the strained internal σ-bonds in the primarily formed bicyclic adducts.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00799039
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