Crystal structure of cis -1-phenyl-8-(pyridin-2-ylmethyl)dibenzo[1,2- c :2,1- h ]-2,14-dioxa-8-aza-1-borabicyclo[4.4.0]deca-3,8-diene

SIGNORELLA, SANDRA; BACK, DAVI; BACK, DAVI; SCHULZ LANG, ERNESTO; LEDESMA, GABRIELA; SCHULZ LANG, ERNESTO; LEDESMA, GABRIELA; SIGNORELLA, SANDRA

Acta Crystallographica Section E Crystallographic Communications

International Union of Crystallography

Año: 2017 vol. 73 p. 1917 - 1920

The title compound, C26H23BN2O2, was obtained as by product during synthetic attempts of a complexation reaction between the tripodal ligand H2L [N,Nbis(2-hydroxybenzyl)(pyridin-2-yl)methylamine] and manganese(III) acetate in the presence of NaBPh4. The isolated B-phenyl dioxazaborocine contains an N-B dative bond with a cis conformation. In the crystal, C?H O hydrogen bonds define chains parallel to the b-axis direction. A comparative analysis with other structurally related derivatives is also included, together with a rationalization of the unexpected production of this zwitterionic heterocycle.