Issue 16, 1991

Synthesis, X-ray structure and rearrangement of nitrogen ylides obtained upon alkyne and CO insertion reactions into aminocarbene complexes of chromium

Abstract

The aminocarbene complexes (CO)5Cr[double bond, length half m-dash]C(R1)N(R2R3)1[R1= H, Me, Ph, R2= Me, R2R3=(CH2)5, R3= Me, cyclopropyl] react with diphenylacetylene to give nitrogen ylides 5 which were fully characterized by an X-ray analysis carried out on 5a[(CO)3CrR2R3N(C16H10OR1)–(R1= H, R2= R3=(CH2)5] and which lead, upon nitrogen to carbon migrations of alkyl groups R2 and R3, to the expected lactams (e.g.8 and 9) C16H10ONR1R2R3.

Article information

Article type
Paper

J. Chem. Soc., Chem. Commun., 1991, 1075-1077

Synthesis, X-ray structure and rearrangement of nitrogen ylides obtained upon alkyne and CO insertion reactions into aminocarbene complexes of chromium

H. Rudler, A. Parlier, R. Goumont, J. C. Daran and J. Vaissermann, J. Chem. Soc., Chem. Commun., 1991, 1075 DOI: 10.1039/C39910001075

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