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Synthesis 2009(4): 660-664
DOI: 10.1055/s-0028-1083353
DOI: 10.1055/s-0028-1083353
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
Cobalt(II) Chloride Hexahydrate-Diisopropylamine Catalyzed Mild and Chemoselective Reduction of Carboxylic Esters with Sodium Borohydride
Further Information
Received
28 July 2008
Publication Date:
02 February 2009 (online)
Publication History
Publication Date:
02 February 2009 (online)

Abstract
The cobalt-catalyzed reduction of unsaturated α-cyano carboxylic esters using sodium borohydride (NaBH4) leads to the corresponding saturated cyano alcohols in high yields. In particular, the new catalytic system cobalt(II) chloride-diisopropylamine in combination with NaBH4 showed excellent activity in the chemoselective reduction of a variety of carboxylic esters to their corresponding alcohols in good to excellent yields under mild conditions.
Key words
reductions - amines - catalysis - esters - alcohols
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