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Synthesis 2008(16): 2547-2550
DOI: 10.1055/s-2008-1067167
DOI: 10.1055/s-2008-1067167
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
A New Enantioselective Catalytic Route to Florhydral®
Further Information
Received
15 April 2008
Publication Date:
08 July 2008 (online)
Publication History
Publication Date:
08 July 2008 (online)
Abstract
The valuable fragrance Florhydral® [3-(3-isopropylphenyl)butanal] has been synthesized in almost enantiomerically pure form by a new catalytic route. The key step of the process is the enantioselective hydrogenation of (E)-3-(3-isopropylphenyl)but-2-en-1-ol, which is carried out with asymmetric inductions of up to 97% using an iridium-phosphinooxazoline chiral catalyst.
Key words
enantioselective hydrogenation - asymmetric catalysis - iridium - fragrance asymmetric synthesis - chiral fragrances
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