175853-82-4Relevant articles and documents
α-Oximono-esters as precursors to heterocycles - generation of oxazinone N-oxides and cycloaddition to alkene dipolarophiles
Heaney, Frances,Fenlon, Julie,O'Mahony, Colm,McArdle, Patrick,Cunningham, Desmond
, p. 4302 - 4316 (2007/10/03)
Preparation of a series of terminally and internally substituted δ-alkenyl and δ-alkynyl esters 6,7 and 9, potential precursors to oxazin-2-one nitrones, has been attempted. Condensation between pyruvic or benzoylformic acid and the appropriate alcohol pr
Stereochemical control - Nitrones from oximes by 1,3-azaprotio cyclotransfer or 1,2-prototropy
O'Mahony, Colm,Heaney, Frances
, p. 167 - 168 (2007/10/03)
Oximes 1a,b and 10 are configurationally stable at elevated temperatures, the (E)-oximes react exclusively via a concerted 1,3-azaprotio cyclotransfer reaction to give 6- and 7-membered cyclic dipoles, respectively, whilst their Z-isomers react via a 1,2-