@article {3074, title = {STRUCTURAL STUDIES OF ORGANOBORON COMPOUNDS .60. REACTION OF STERICALLY HINDERED ARYLBORONIC ACIDS WITH 2-(HYDROXYAMINO)ALKANOLS - CRYSTAL AND MOLECULAR-STRUCTURE OF 2-MESITYL-6,6-PENTAMETHYLENE-1,3-DIOXA-4-AZA-2-BORACYCLOHEXANE}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {72}, number = {4}, year = {1994}, note = {ISI Document Delivery No.: NN830Times Cited: 4Cited Reference Count: 14}, month = {Apr}, pages = {1154-1161}, type = {Article}, abstract = {{Three 2-(hydroxyamino)alkanols have been reacted with sterically hindered arylboronic acids, ArB(OH)(2). When Ar = o-tolyl, 1:2 condensates having bicyclic structures are formed but when Ar = mesityl (2,4,6-(CH3)(3)C6H2), 2:1 condensates having six-membered cycloboronate structures result. These 1:1 condensates represent the first examples of N-unsubstituted 1,3-dioxa-4-aza-2-boracyclohexane derivatives. An X-ray analysis of one example provides unambiguous proof of the structure. Crystals of 2-mesityl-6,6-pentamethylene-1,3-dioxa-4-aza-2-boracyclohexane, 3c, are monoclinic}, keywords = {NITRONES, RING-CHAIN ISOMERISM}, isbn = {0008-4042}, url = {://A1994NN83000019}, author = {Kliegel, W. and Lubkowitz, G. and Rettig, S. J. and Trotter, J.} }