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ChemInform Abstract: First Synthesis and Determination of the Absolute Configuration of the Butenolide Fugomycin.

✍ Scribed by Manfred Braun; Jaykumar Rahematpura; Corinna Buehne; Thiomothy C. Paulitz

Publisher
John Wiley and Sons
Year
2000
Weight
27 KB
Volume
31
Category
Article
ISSN
0931-7597

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## Abstract The dibromoalkenes (__S__)‐**3** and (__R__)‐ and (__S__)‐**4** are intermediates in the syntheses of the naturally occurring fungicidal butenolides fugomycin (**1**) and desoxyfugomycin (**2**), respectively. The stereoselective bromine–lithium exchange that leads to the carbenoid **12