[2+1] Cycloadditions of Diazoalkanes to Enol Ethers Catalyzed by Chromium Complexes—The First Direct Spectroscopic Observation of a Carbene Complex Intermediate | Zendy

Pfeiffer Jürgen | Zendy; Dötz Karl Heinz | Zendy

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[2+1] Cycloadditions of Diazoalkanes to Enol Ethers Catalyzed by Chromium Complexes—The First Direct Spectroscopic Observation of a Carbene Complex Intermediate

Author(s) -

Pfeiffer Jürgen,

Dötz Karl Heinz

Publication year - 1997

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.199728281

Subject(s) - carbene , chemoselectivity , catalysis , chemistry , chromium , enol , cyclooctene , medicinal chemistry , photochemistry , organic chemistry

A new catalytic route to cyclopropanes from alkenes and diazolakanes is provided by pentacarbonyl(η 2 ‐ cis ‐cyclooctene)chromium(0), which generates the catalyst “Cr(CO) 5 ”. The reactions (1) are characterized by a pronounced chemoselectivity of the participating carbene complex intermediates 1 and allow the unambiguous discrimination of diversely substituted olefins.

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