Templated C-C and C-N Bond Formation Facilitated by a Molybdenum(VI) Metal Center.
Inorg Chem
; 54(24): 11969-76, 2015 Dec 21.
Article
em En
| MEDLINE
| ID: mdl-26646158
ABSTRACT
Preparation of molybdenum dioxido complexes with novel iminophenolate ligands bearing pendant secondary amide functionalities led to unprecedented C-C and C-N coupling reactions of two α-iminoamides upon coordination. The diastereoselective cyclization to asymmetric imidazolidines occurs at the metal center in two consecutive steps via a monocoupled intermediate. A meaningful mechanism is proposed on the basis of full characterization of intermediate and final molybdenum-containing products by spectroscopic means and by single-crystal X-ray diffraction analyses. This process constitutes the first example of a diastereoselective self-cyclization of two α-iminoamides.
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MEDLINE
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En
Ano de publicação:
2015
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Article