@article {4309, title = {Aromatic aldonitrones of 2-(hydroxyamino)benzyl alcohol and their cyclic isomers. Crystal and molecular structures of a 1-hydroxy-1,2-dihydro-4H-3,1-benzoxazine, a boron chelate, and its parent nitrone ligand}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {76}, number = {4}, year = {1998}, note = {ISI Document Delivery No.: 101TQTimes Cited: 8Cited Reference Count: 16}, month = {Apr}, pages = {389-399}, type = {Article}, abstract = {{The synthesis of a series of C-aryl-N-[2-(hydroxymethyl)phenyl]nitron 5 (that can also exist under certain conditions as isomeric 1-hydroxy-2-aryl-1,2-dihydro-4H-3,1-benzoxazines 8), via 2-(hydroxyamino)benzyl alcohol, 4, and their subsequent reactions with oxybis(diphenylborane), (Ph2B)(2)O, leading to the 5-(arylmethylene)-7,7-diphenyl-6,8-dioxa 5-azonia-7-borata-5H-6,7,8,9-tetrahydrobenzocycloheptenes 6 are described. Crystals of 1-hydroxy-2-(4-methoxyphenyl)-1,2-dihydro-4H-3,1-benzoxazine, 8b, are monoclinic}, keywords = {1-benzoxazines, 1-hydroxy-2-aryl-1, 2-dihydro-4H-3, C-aryl-N-[2-(hydroxymethyl)phenyl]nitrones, COMPOUNDS, crystal structures, METABOLITES, organoboron, ORGANOBORON COMPOUNDS}, isbn = {0008-4042}, url = {://000074884600003}, author = {Kliegel, W. and Metge, J. and Rettig, S. J. and Trotter, J.} } @article {4308, title = {Structural studies of organoboron compounds LXVIII. C-(2-hydroxyaryl)-N-(2-hydroxyphenylmethyl)nitrones as regioselective bidentate ligands in boron chelate formation. Crystal and molecular structures of a diphenylboron complex and its parent ligand}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {76}, number = {7}, year = {1998}, note = {ISI Document Delivery No.: 138YYTimes Cited: 11Cited Reference Count: 14}, month = {Jul}, pages = {1082-1092}, type = {Article}, abstract = {{The C-(2-hydroxyaryl)-N-(2-hydroxyphenylmethyl)nitrones 5 are synthesized by the condensation of variously substituted salicylaldehydes with N-(2-hydroxyphenylmethyl)-hydroxylamine. These nitrones react with diphenylborinic acid anhydride to form seven-membered diphenylboron chelates 6. Crystals of C-(4-diethylamino-2-hydroxyphenyl)-N- (2-hydroxyphenylmethyl)nitrone, 5d, are monoclinic}, keywords = {C-(2-hydroxyaryl)-N-(2-hydroxyphenylmethyl)nitrones, COMPOUNDS, crystal structures, NITRONES, organoboron}, isbn = {0008-4042}, url = {://000077001700014}, author = {Kliegel, W. and Metge, J. and Rettig, S. J. and Trotter, J.} }