A new bicyclic oxazaborines with a bridged nitrogen atom, their thermic rearrangement and fluorescence properties

…, V Macháček, N Almonasy, E Černošková

Index: Josefik, Frantisek; Svobodova, Marketa; Bertolasi, Valerio; Simunek, Petr; MacHacek, Vladimir; Almonasy, Numan; Cernoskova, Eva Journal of Organometallic Chemistry, 2012 , vol. 699, p. 75 - 81

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Citation Number: 13

Abstract

Cyclic β-enaminones bearing secondary amino group react with 4-substituted benzenediazonium tetraphenylborates in dichloromethane to form substituted bicyclic [1, 3, 2λ4] oxazaborines The oxazaborines rearrange, on heating to 200° C in the absence of solvent or in DMF or DMSO, to isomeric 2H-[1, 2, 4, 3λ4] triazaborines. Previously prepared [1, 3, 2λ4] oxazaborines derived from acyclic β-enaminones bearing secondary amino ...