articleJournal of the American Chemical SocietySep 13, 2016Closed access

Homochiral 2D Porous Covalent Organic Frameworks for Heterogeneous Asymmetric Catalysis

XWXiuren WangXHXing HanJZJie ZhangXWXiaowei WuYLYan Liu

Shanghai Jiao Tong University · Collaborative Innovation Center of Chemical Science and Engineering Tianjin

PubMed
Indexed incrossrefpubmed

Abstract

There have been breakthroughs in the development of covalent organic frameworks (COFs) with tunability of composition, structure, and function, but the synthesis of chiral COFs remains a great challenge. Here we report the construction of two-dimensional COFs with chiral functionalities embedded into the frameworks by imine condensations of enantiopure TADDOL-derived tetraaldehydes with 4,4'-diaminodiphenylmethane. Powder X-ray diffraction and computer modeling together with pore size distribution analysis show that one COF has a twofold-interpenetrated grid-type network and the other has a non-interpenetrated grid network. After postsynthetic modification of the chiral dihydroxy groups of TADDOL units with…

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Topics & keywords

Topics
Keywords
  • Chemistry
  • Covalent bond
  • Catalysis
  • Porosity
  • Heterogeneous catalysis
  • Covalent organic framework
  • Metal-organic framework
  • Organic chemistry
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