ESR Observation of Thermally Produced Triplet Nitrenes and Photochemically Produced Triplet Cycloheptatrienylidenes | Zendy

Kuzaj Martin | Zendy; Lüerssen Holger | Zendy; Wentrup Curt | Zendy

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ESR Observation of Thermally Produced Triplet Nitrenes and Photochemically Produced Triplet Cycloheptatrienylidenes

Author(s) -

Kuzaj Martin,

Lüerssen Holger,

Wentrup Curt

Publication year - 1986

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.198604801

Subject(s) - carbene , nitrene , photochemistry , matrix isolation , thermal decomposition , chemistry , decomposition , spectroscopy , infrared spectroscopy , organic chemistry , physics , catalysis , quantum mechanics

The fascinating carbene‐nitrene rearrangement can be observed directly by ESR spectroscopy. In the thermal decomposition of the carbene precursor 4 (via 3 ) with subsequent matrix isolation, the product gave the same ESR signal as phenylnitrene 2 from phenylazide 1 ! In the aza‐analogous system, the seven‐membered carbene 5 is probably formed as intermediate of the rearrangemet.

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