85835-91-2Relevant articles and documents
BORCHELATE VON SALICYLALDEHYDNITRONEN
Kliegel, Wolfgang,Nanninga, Dierk
, p. 373 - 386 (1983)
Nitrones of salicylaldehyde react as bidentate ligands with various chelate-forming boron compounds resulting in seven-membered heterocycles with B,N-betaine structure.During the chelate-forming cyclization of the instable intermediate nitrone-adducts of the boron compounds suitable leaving groups from the boron are easily eliminated together with the phenolic proton of the salicylaldehyde moiety.