Squarephaneic tetraanhydride: a conjugated square‐shaped cyclophane for the synthesis of porous organic materials**

HIGHLIGHTS

• who: Angewandte et al. from the (UNIVERSITY) have published the research work: Squarephaneic Tetraanhydride: A Conjugated Squareu2010Shaped Cyclophane for the Synthesis of Porous Organic Materials**, in the Journal: (JOURNAL)
• what: Our results show that squarephaneic tetraanhydride (SqTA), the compound introduced in this work, represents a unique new member of the family of aromatic carboxylic anhydride building blocks.
• how: For the improved synthesis of precursor 3 the authors used terephthaloyl chloride as the starting material (Scheme 2 top) and converted it into terephthaloyl cyanide by adapting a previously reported procedure for this reaction.[12 . . .
  

   

  

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