Rhodium-catalyzed formation of boron-nitrogen bonds: a mild route to cyclic aminoboranes and borazines

被引:209
作者
Jaska, CA [1 ]
Temple, K [1 ]
Lough, AJ [1 ]
Manners, I [1 ]
机构
[1] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada
关键词
D O I
10.1039/b102361f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Secondary amine-borane adducts R2NH . BH3, which are stable to H-2 elimination below 100 degreesC, undergo efficient catalytic dehydrocoupling at 25-45 degreesC in the presence of Rh-I or Rh-III complexes to quantitatively form cyclic aminoboranes [NR2-BH2](2) (1: R = Me or 2: cyclo-C4H8); under similarly mild conditions, the analogous adducts NH3. BH3 and MeNH2. BH3 yield borazines [RN-BH](3) (3: R = H or 4: R = Me) in yields limited by intermolecular coupling reactions.
引用
收藏
页码:962 / 963
页数:2
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