✍ Scribed by S.-M. ZHOU; Y.-L. YAN; M.-Z. DENG
No coin nor oath required. For personal study only.
A Novel Stereocontrolled Synthesis of Cyclopropyl-Substituted α,β-Unsaturated Esters: Palladium Catalyzed Cross-Coupling of Cyclopropylboronic Acids with Bromoacrylates.
-Under optimized conditions A) trans-substituted cyclopropylboronic acids (I) react in a stereocontrolled manner with α,β-unsaturated esters. They provide stereodefined cyclopropyl substituted α,β-unsaturated esters (III) and (V), a skeleton present in many natural products.
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A Novel Reaction of β,β'-Dihydroxy Acids or Esters with Vanadium(V) Trichloride Oxide. New Entry to the Stereoselective Synthesis of α-Fluoro-α,β-unsaturated Acids and Esters. -Deoxygenation of various aromatic dihydroxy acids and esters is optimally achieved upon treatment according to conditions
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