Phosphidoboratabenzene–rhodium(i) complexes as precatalysts for the hydrogenation of alkenes at room temperature and atmospheric pressure. Issue 5 (4th November 2015)

• Record Type: Journal Article
• Authors: Perez, Viridiana; Audet, Pierre; Bi, Wenhua; Fontaine, Frédéric-Georges
• Is Part Of: Dalton transactions. Volume 45:Issue 5(2016)
• Page Start: 2130
• Page End: 2137
• Publication Date: 2015-11-04
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c5dt03109e
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : The synthesis and characterization of a phosphido-boratabenzene rhodium complex is reported. The species acts as a precatalyst for the hydrogenation of alkenes at room temperature and atmospheric pressure. Abstract : The di- tert -butylphosphido-boratabenzene ligand (DTBB) reacts with [(C2 H4 )2 RhCl]2 yielding the dimeric species [(C2 H4 )Rh(DTBB)]2 (1 ). This species was fully characterized by multinuclear NMR and X-ray crystallography. Complex1 readily dissociates ethylene in solution and upon exposure to 1 atm of H2 is capable of carrying out the hydrogenation of ethylene. The characterization of two Rh–H species by multinuclear NMR spectroscopy is provided. The reactivity of1 towards the catalytic hydrogenation of alkenes and alkynes at room temperature and 1 atm of H2 is reported and compared to the activity of Wilkinson's catalyst under the same reaction conditions.