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General Chemistry

Special Issue: Porphyrins

• Reports • Previous Articles    

La(OTf)3-Catalyzed Synthesis of Nickel(II) β-Iminoporphyrins and Their Conversion to β-Substituted Porphyrin-Thiazolidinone Hybrids

 Ranjan K Bhatt, Pargat Singh, Raju Tiwari, and Mahendra Nath*   

  1. Department of Chemistry, Faculty of Science, University of Delhi, Delhi-110 007, India
  • Received:2020-12-10 Online:2021-03-29 Published:2021-03-29
  • Contact: Mahendra Nath, Email: mnath@chemistry.du.ac.in (M. N.)
  • Supported by:

Abstract: Two diverse series of nickel(II) β-iminoporphyrins were prepared in good yields by the reaction of corresponding 2-formyl- and 2-amino-5,10,15,20-tetraphenylporphyrins with primary amines and aldehydes, respectively, in toluene containing a catalytic amount of La(OTf)3 under reflux conditions. These 2-iminoporphyrins further served as precursors to construct novel nickel(II) complexes of β-substituted porphyrinic thiazolidinones in moderate yields on reaction with mercaptoacetic acid in refluxing toluene. All the synthesized porphyrins have been characterized on the basis of spectral data analysis.


Key words: β-iminoporphyrins, lanthanum triflate, mercaptoacetic acid, synthesis, thiazolidinones

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