Novel nitrene precursors of the form PhlNSO:R ( R = l-methylimidazolyl (1), pyridine (2), 2-pyridine Noxide ( 3)) have been prepared that contain heterocyclic sulfonamide residues. These new iodinanes are evaluated as sources of the corresponding heterocycle-containing nitrenes in aziridination and
Ring contraction in heterocyclic nitrenes
β Scribed by Crow, W. D.; Wentrup, C.
- Book ID
- 118210296
- Publisher
- Royal Society of Chemistry
- Year
- 1968
- Weight
- 128 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0009-241X
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## Abstract ^15^Nβlabelling experiments and energy calculations on nitrenoβazines and βdiazies are in agreement and lead to the theory that both ring contraction and ring expansion in hetarylnitrenes __can__ be oneβstep processes which are governed mainly by the energy differences between the react