Interconverting Lanthanum Hydride and Borohydride Catalysts for C=O Reduction and C−O Bond Cleavage
Abstract
Abstract The high catalytic reactivity of homoleptic tris(alkyl) lanthanum La{C(SiHMe 2 ) 3 } 3 is highlighted by C−O bond cleavage in the hydroboration of esters and epoxides at room temperature. The catalytic hydroboration tolerates functionality typically susceptible to insertion, reduction, or cleavage reactions. Turnover numbers (TON) up to 10 000 are observed for aliphatic esters. Lanthanum hydrides, generated by reactions with pinacolborane, are competent for reduction of ketones but are inert toward esters. Instead, catalytic reduction of esters requires activation of the lanthanum hydride by pinacolborane.
- Authors:
-
- Department of Chemistry and US Department of Energy Ames Laboratory Iowa State University 1605 Gilman Hall Ames IA USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1492099
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Angewandte Chemie
- Additional Journal Information:
- Journal Name: Angewandte Chemie Journal Volume: 131 Journal Issue: 8; Journal ID: ISSN 0044-8249
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
Citation Formats
Patnaik, Smita, and Sadow, Aaron D. Interconverting Lanthanum Hydride and Borohydride Catalysts for C=O Reduction and C−O Bond Cleavage. Germany: N. p., 2019.
Web. doi:10.1002/ange.201813305.
Patnaik, Smita, & Sadow, Aaron D. Interconverting Lanthanum Hydride and Borohydride Catalysts for C=O Reduction and C−O Bond Cleavage. Germany. https://doi.org/10.1002/ange.201813305
Patnaik, Smita, and Sadow, Aaron D. Fri .
"Interconverting Lanthanum Hydride and Borohydride Catalysts for C=O Reduction and C−O Bond Cleavage". Germany. https://doi.org/10.1002/ange.201813305.
@article{osti_1492099,
title = {Interconverting Lanthanum Hydride and Borohydride Catalysts for C=O Reduction and C−O Bond Cleavage},
author = {Patnaik, Smita and Sadow, Aaron D.},
abstractNote = {Abstract The high catalytic reactivity of homoleptic tris(alkyl) lanthanum La{C(SiHMe 2 ) 3 } 3 is highlighted by C−O bond cleavage in the hydroboration of esters and epoxides at room temperature. The catalytic hydroboration tolerates functionality typically susceptible to insertion, reduction, or cleavage reactions. Turnover numbers (TON) up to 10 000 are observed for aliphatic esters. Lanthanum hydrides, generated by reactions with pinacolborane, are competent for reduction of ketones but are inert toward esters. Instead, catalytic reduction of esters requires activation of the lanthanum hydride by pinacolborane.},
doi = {10.1002/ange.201813305},
journal = {Angewandte Chemie},
number = 8,
volume = 131,
place = {Germany},
year = {Fri Jan 25 00:00:00 EST 2019},
month = {Fri Jan 25 00:00:00 EST 2019}
}
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