885700-91-4Relevant academic research and scientific papers
Novel 5-(4-Substituted-phenyldiazenyl)-1,3,2λ 4-oxazaborines and their rearrangement to 1,2,4,3λ 4-triazaborines
Peskova, Marketa,Simunek, Petr,Bertolasi, Valerio,Machacek, Vladimir,Lycka, Antonin
, p. 2025 - 2030 (2008/10/09)
The reaction of substituted benzenediazonium tetraphenylborates with the β-enaminones derived from pentane-2,4-dione, 1-phenylbutane-1,3-dione, and 1,4-diphenylbutane-1,3-dione with a primary or secondary (N-methyl, N-phenyl) amino group in CH2Cl2 gives 5-(substituted-phenyldiazenyl)-2,2-diphenyl-4,6-disubstituted-1,3,2λ 4-oxazaborines or 5-(substituted-phenyldiazenyl)-2,2-diphenyl-3,4,6-trisubstituted-1,3, 2λ4-oxazaborines, respectively. The reaction intermediate of these compounds has been identified, and a mechanism for the reaction has been suggested. Substituted 1,3,2λ4-oxazaborines gradually rearrange into 1,2,4,3λ4-triazaborines at temperatures above 100°C.
