Base-Induced Decarboxylation of Polyunsaturated<i>α</i>-Cyano Acids Derived from Malonic Acid: Synthesis of Sesquiterpene Nitriles and Aldehydes with<i>β</i>-,<i>φ</i>-, and<i>ψ</i>-End Groups
作者:Laurent Dufossé、Dominique Cartier、Benoist Valla、Mireille Fouillaud、Roger Labia、Alain Valla
DOI:10.1002/hlca.201200162
日期:2013.2
Catalytic base‐induced decarboxylation of polyunsaturated α‐cyano‐β‐methyl acidsderivedfrommalonicacid led to the corresponding nitriles 3 (Schemes 2 and 3), 6 (Scheme 5), and 9 (Scheme 6). This decarboxylation occurred with previous deconjugation of the α,β‐alkene moiety of the α‐cyano‐β‐methyl acid, leading to an α‐cyano‐β‐methylene propanoic acid which was easily decarboxylated (see Scheme 2)