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Reactions of 1-aza-pentadienyl anions with michael acceptors: regiochemistry

✍ Scribed by Florian Baumann; Ernst-Ulrich Würthwein


Publisher
Elsevier Science
Year
1991
Tongue
French
Weight
248 KB
Volume
32
Category
Article
ISSN
0040-4039

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## Abstract Starting from the easily accesible chiral aldehyde 2, we obtained enantiomerically pure (__Z__)‐ and (__E__)‐α,‐chloro‐α,β‐unsaturated esters 4c in good yields by olefination reactions. (__Z__)‐and (__E__)‐4c were allowed to react with the kinetically controlled generated lithium dienol