• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >Structural differences/similarities of diastereotopic groups in three new chiral phosphoramides
【24h】

Structural differences/similarities of diastereotopic groups in three new chiral phosphoramides

机译：三种新的手性磷酰胺中非对抗立体基团的结构差异/相似性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The crystal structures of two single-enantiomer amidophosphoesters with an (O)(2)P(O)(N) skeleton and one single-enantiomer phosphoric triamide with an (N)(2)P(O)(N) skeleton were studied. The compounds are diphenyl [(R)-(+)-alpha-4dimethylbenzylamido]phosphate, (I), and diphenyl [(S)-(-)-alpha-4-dimethylbenzylamido]phosphate, (II), both C21H22NO3P, and N-(2,6-difluorobenzoyl)N',N ''-bis[(R)-(+)-alpha-ethylbenzyl]phosphoric triamide, C25H28F2N3O2P, (III). The asymmetric units contain two amidophosphoester molecules for (I) and (II), and one phosphoric triamide molecule for (III). In the crystal structures of (I) and (II), molecules are assembled in a similar one-dimensional chiral ribbon architecture, but with almost a mirror-image relationship with respect to each other through N-H center dot center dot center dot O(P) and C-H center dot center dot center dot O(P) hydrogen bonds along [010]. In the crystal structure of (III), the chiral tape architecture along [100] is mediated by N-H center dot center dot center dot O(P) and N-H center dot center dot center dot O(C) hydrogen bonds, and the tapes are connected into slabs by C-H center dot center dot center dot O interactions (along the ab plane). The differences/similarities of the two diastereotopic phenoxy groups in (I)/(II) and the two chiral amine fragments in (III) were studied on the grounds of geometry, conformation and contribution to the crystal packing, as well as H-1 and C-13 signals in a solution NMR study.
机译：None

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