Browsing by Author "Riche, Claude"

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Condensation of Chiral lmines and Chiral ]]-Enaminoesters with Maleic and Citraconic Anhydrides

Gassama, Abdoulaye; Cavé, Christian; Mahuteau, Jacqueline; Angelo, Jean d'; Riche, Claude (1997)

Condenmlions of chiral imines I and 4, and chiral ennminoesters 10 and 13. ~ ma/e~ and citracoaic anhydrides were reported. These experimen:al om~com~ can be ratio _l~__~ed by invaking the compact, eado-aplaroaches of ...
Enantioselective acces to five- and six- membered nitogen - containing heterocycles, based on the asymetric Michael addition of chiral imines and chiral enamino esters.

Angelo, Jean d'; Cavé, Christian; Gassama, Abdoulaye; Desmaële, Didier; Thominiaux, Cyrille; Riche, Claude (1998)

The addition reaction of chiral imines, (ent-10, 48, 70) and chiral enamino esters (52, 55, 73) with maleic anhydride (32), citraconic anhydride (57), a-chloroacrylonitrile (29), and nitroethylene (74), has been investigated. ...
Regioselective Annulation of 1,5-Diketones: Access to Functionalized Hagemann’s Esters

Gassama, Abdoulaye; Angelo, Jean d'; Cavé, Christian; Mahuteau, Jacqueline; Riche, Claude; (European Journal of Organic Chemistry, 2000)

The synthesis of the ‘‘functionalized’’ Hagemann’s ester (S)- 18 was investigated. The common starting material in these approaches was enamino ester (S,Z)-5, which was prepared through the condensation of keto diester ...