Balaraman E, Fogler E, Milstein D. Efficient hydrogenation of biomass-derived cyclic di-esters to 1,2-diols.
Chem Commun (Camb) 2011;
48:1111-3. [PMID:
22038098 DOI:
10.1039/c1cc15778g]
[Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The unprecedented homogeneous hydrogenation of cyclic di-esters, in particular biomass-derived glycolide and lactide, to the corresponding 1,2-diols is catalyzed by Ru(II) PNN (1) and Ru(II) CNN (2) pincer complexes under mild hydrogen pressure and (in the case of 1) neutral conditions. No racemization was observed when a chiral di-ester was used.
Collapse