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Synthesis 2005(9): 1528-1532
DOI: 10.1055/s-2005-865319
DOI: 10.1055/s-2005-865319
PAPER
© Georg Thieme Verlag Stuttgart · New York
Enantioselective Radical Methods for Lactone Synthesis: Use of Unprotected Haloalcohols as Radical Precursors
Further Information
Received
14 March 2005
Publication Date:
18 April 2005 (online)
Publication History
Publication Date:
18 April 2005 (online)
Abstract
We have developed an efficient free radical method for the synthesis of enantioenriched 6- and 7-membered lactones in one synthetic operation.
Key words
radical reactions - chiral Lewis acid - lactones - conjugate additions - enantioselective reactions
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1a
Radicals in Organic Synthesis
Vol. 1:
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1b
Radicals in Organic Synthesis
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- Compound 5a and 5e:
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References
Note the change in priority for compound 5b. The radical reaction occurs from the same face for all compounds.
11This reaction proceeds with 39% ee when magnesium bromide is used as the Lewis acid. See ref. 5.