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 |
Publication Type | Journal Article |
Year of Publication | 1994 |
Authors | Kliegel, W, Lubkowitz, G, Rettig, SJ, Trotter, J |
Journal | Canadian Journal of Chemistry-Revue Canadienne De Chimie |
Volume | 72 |
Pagination | 1154-1161 |
Date Published | Apr |
Type of Article | Article |
ISBN Number | 0008-4042 |
Keywords | NITRONES, RING-CHAIN ISOMERISM |
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 |
URL | <Go to ISI>://A1994NN83000019 |