4.8 Article

Osmium Catalyst for the Borrowing Hydrogen Methodology: α-Alkylation of Arylacetonitriles and Methyl Ketones

Journal

ACS CATALYSIS
Volume 3, Issue 9, Pages 2072-2075

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/cs4005375

Keywords

osmium; borrowing hydrogen; hydrogen autotransfer; nitriles alkylation; ketones alkylation

Funding

  1. Spanish MINECO [CTQ2007-65218/BQU, CTQ2011-23459, CTQ2011-24165]
  2. Consolider Ingenio [CSD2007-00006]
  3. DGA [E35]
  4. Generalitat Valenciana [PROMETEO/2009/039]
  5. FEDER
  6. European Social Fund (FSE)

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Complex [O-s(eta(6)-p-cymene)(OH)(IPr)]OTf is an efficient catalyst precursor for the a-alkylation of arylacetonitriles and methyl ketones with alcohols, which works with turnover frequencies between 675 and 176 h(-1) for nitriles and between 194 and 28 h(-1) for ketones.

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