...
首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Syntheses and characterization of o-carboranes containing fused exo-polyhedral Di- and triboraheterocycles
【24h】

Syntheses and characterization of o-carboranes containing fused exo-polyhedral Di- and triboraheterocycles

机译:含有稠合外多面体二-和三硼杂环的邻氨基甲酸酯的合成与表征

获取原文
获取原文并翻译 | 示例
           

摘要

Reaction of dilithio-o-carborane Li_2C_2B _(10)H_(10) (generated in situ from o-carborane 1 and butyllithium) with the 1, 2-diborylbenzene derivative 1, 2-C_6H _4(iPr_2NBCl)_2 yielded the o-carborane compound 3 having the fused exo-polyhedral C_2B_2C_2 heterocycle. The analogous reactions with 1, 1-bis(dimethylaminochloroboryl) ethane and with 1, 3-dichloro-1, 2,3-tris(dimethylamino)triborane(5) afforded the o-carborane compounds 5 and 7 containing the fused exo-polyhedral five-membered C_2B_2C and C_2B_3 rings, respectively. Attempts to use 1, 2-dichloro-1, 2-bis(dimethylamino)diborane(4) for the synthesis of the o-carborane compound 10 with a fused exo-polyhedral C_2B_2 ring instead led to the diborane(4)yl-o-carborane species 9c and 9d (the latter in trace amount), which contain a diborane(4)yl moiety bonded to the o-carborane. The molecular compositions of the new o-carborane derivatives follow from NMR spectroscopic and mass spectrometric data as well as from X-ray diffraction analyses of 3, 7 and 9c. The structures exhibit weak intramolecular C-H···H-B hydrogen-hydrogen interactions.
机译:二硫代-邻-碳硼烷Li_2C_2B _(10)H_(10)(由邻-碳硼烷1和丁基锂原位生成)与1,2,二硼烷基苯衍生物1,2-C_6H _4(iPr_2NBCl)_2反应生成o-具有稠合的外多面体C_2B_2C_2杂环的碳硼烷化合物3。与1,1-双(二甲基氨基氯硼基)乙烷和与1,3-二氯-1,2,3-三(二甲基氨基)三硼烷(5)的类似反应得到含有稠合的外多面体的邻碳硼烷化合物5和7五元C_2B_2C和C_2B_3环。尝试使用1,2-二氯-1,2-双(二甲基氨基)二硼烷(4)合成带有稠合的外多面体C_2B_2环的邻-碳烷化合物10导致生成二硼烷(4)yl-o -碳硼烷物质9c和9d(后者为痕量),其中含有键合至邻-碳硼烷的乙硼烷(4)yl部分。新的邻-甲碳烷衍生物的分子组成来自NMR光谱和质谱数据以及3、7和9c的X射线衍射分析。该结构表现出弱的分子内C-H···H-B氢-氢相互作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号