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Oxidative Cleavage of C=S and P=S Bonds at an AlI Center: Preparation of Terminally Bound Aluminum Sulfides.

Authors :
Chu, Terry
Vyboishchikov, Sergei F.
Gabidullin, Bulat
Nikonov, Georgii I.
Source :
Angewandte Chemie International Edition; 10/10/2016, Vol. 55 Issue 42, p13306-13311, 6p
Publication Year :
2016

Abstract

The treatment of cyclic thioureas with the aluminum(I) compound NacNacAl ( 1; NacNac=[ArNC(Me)CHC(Me)NAr]<superscript>−</superscript>, Ar=2,6-Pr<superscript>i</superscript><subscript>2</subscript>C<subscript>6</subscript>H<subscript>3</subscript>) resulted in oxidative cleavage of the C=S bond and the formation of 3 and 5, the first monomeric aluminum complexes with an Al=S double bond stabilized by N-heterocyclic carbenes. Compound 1 also reacted with triphenylphosphine sulfide in a similar manner, which resulted in cleavage of the P=S bond and production of the adduct [NacNacAl=S(S=PPh<subscript>3</subscript>)] ( 8). The Al=S double bond in 3 can react with phenyl isothiocyanate to furnish the cycloaddition product 9 and zwitterion 10 as a result of coupling between the liberated carbene and PhN=C=S. All novel complexes were characterized by multinuclear NMR spectroscopy, and the structures of 5, 9, and 10 were confirmed by X-ray diffraction analysis. The nature of the Al=S bond in 5 was also probed by DFT calculations. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14337851
Volume :
55
Issue :
42
Database :
Complementary Index
Journal :
Angewandte Chemie International Edition
Publication Type :
Academic Journal
Accession number :
118553749
Full Text :
https://doi.org/10.1002/anie.201607735