A series of polymer-bound Fischer chromium alkoxy and amino carbene type I complexes were synthesized by the thermal exchange of a CO ligand in chromium pentacarbonyl carbenes 2 with triphenyl phosphine resin 1. The supported alkoxycarbene 3a proved to be reactive towards primary amines, and afforded the polymer-bound aminocarbenes 5. Type II aminocarbenes were also prepared by reacting polymer-supported aminoacids with alkoxycarbene 2a.
Synthesis of polymer-bound Fischer chromium alkoxy and aminocarbene complexes / S. Maiorana, P. Seneci, T. Rossi, C. Baldoli, M. Ciraco, E. De Magistris, E. Licandro, A. Papagni, S. Provera. - In: TETRAHEDRON LETTERS. - ISSN 0040-4039. - 40:18(1999), pp. 3635-3638.
Synthesis of polymer-bound Fischer chromium alkoxy and aminocarbene complexes
P. Seneci;E. Licandro;
1999
Abstract
A series of polymer-bound Fischer chromium alkoxy and amino carbene type I complexes were synthesized by the thermal exchange of a CO ligand in chromium pentacarbonyl carbenes 2 with triphenyl phosphine resin 1. The supported alkoxycarbene 3a proved to be reactive towards primary amines, and afforded the polymer-bound aminocarbenes 5. Type II aminocarbenes were also prepared by reacting polymer-supported aminoacids with alkoxycarbene 2a.
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