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Alcaloides steroidiques—CLXXI : Nouvelle methode d'acces aux 4H dihydro-5,6 oxazine-1,3

✍ Scribed by C. Monneret; P. Choay; Q. Khuong-Huu


Publisher
Elsevier Science
Year
1975
Tongue
French
Weight
376 KB
Volume
31
Category
Article
ISSN
0040-4020

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Ar-C(CN)=N-N=C(CN)-Ar and rivatives Ar-CZr(SEt)-CN, afford in hydroxy-1,2,4-triazines. At--C(CN)=N-WI-CO-At-', easily prepared from the bromodegood yields, by heating in a basic medium, 3,6-diaryl-5 Les principales methodes de pr@paration des as-triazinones-5 par heterocyclisation font ap+el a la co