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Alkynyl phenyl selenides as convenient precursors for the synthesis of stereodefined trisubstituted alkenes

✍ Scribed by Marco Tingoli; Marcello Tiecco; Lorenzo Testaferri; Andrea Temperini; Giancarlo Pelizzi; Alessia Bacchi


Publisher
Elsevier Science
Year
1995
Tongue
French
Weight
597 KB
Volume
51
Category
Article
ISSN
0040-4020

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Carboxamide oximes as convenient precurs
✍ Biserka Mlakar; Bogdan Ε tefane; Marijan Kočevar; Slovenko Polanc πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 French βš– 549 KB

A general method for the synthesis of pyrimidine N-oxides from the appropriate carboxamide oximes is described. The conversion involves a treatment of various carboxamide oximes with either l,l,3,3-tetramethoxypropane, 2,4-pentanedione, 3-ethoxy-2-proponal, 4,4-dimethoxy-2-butanone or 4-methoxy-3-bu