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Cu–iminopyridine complexes as catalysts for carbene and nitrene transfer reactions

Abedi, Yaghoub and Biffis, Andrea and Gava, Riccardo and Tubaro, Cristiano and Chelucci, Giorgio Adolfo and Stoccoro, Sergio (2014) Cu–iminopyridine complexes as catalysts for carbene and nitrene transfer reactions. Applied organometallic chemistry, Vol. 28 (7), p. 512-516. eISSN 1099-0739. Article.

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DOI: 10.1002/aoc.3155

Abstract

Copper complexes with chiral iminopyridine ligands were screened for their catalytic efficiency in carbene (cyclopropanation) and nitrene transfer reactions (aziridination, CH amidation). Both pre-formed and in situ formed complexes were considered. The results highlighted the poor catalytic efficiency of these complexes in cyclopropanation reactions employing methyl phenyldiazoacetate as the carbene source, whereas better results were obtained in nitrene transfer reactions, particularly in the amidation of CH bonds, albeit the enantioselectivity of the reactions was negligible in nearly all cases. Finally, copper complexes were also found to promote an interesting oxidative functionalization of alkynes with PhI(OAc)2 at room temperature.

Item Type:Article
ID Code:10342
Status:Published
Refereed:Yes
Uncontrolled Keywords:Copper, iminopyridine ligands, cyclopropanation, ziridination, amination
Subjects:Area 03 - Scienze chimiche > CHIM/06 Chimica organica
Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Agraria
001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:Wiley
eISSN:1099-0739
Deposited On:18 Nov 2014 15:18

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