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A Star‐Shaped Triazine‐Based Vitamin B 5 Copper(II) Nanocatalyst for Tandem Aerobic Synthesis of Bis(indolyl)methanes
Author(s) -
Hasanpour Benyamin,
Jafarpour Maasoumeh,
Eskandari Ameneh,
Rezaeifard Abdolreza
Publication year - 2020
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.202000270
Subject(s) - chemistry , catalysis , copper , tandem , selectivity , leaching (pedology) , triazine , nuclear chemistry , combinatorial chemistry , organic chemistry , materials science , composite material , environmental science , soil science , soil water
In this work, the catalytic efficiency of a novel bio‐relevant triazine (TA)‐based pantothenate (vitamin B 5 ) copper(II) complex [Cu(II)‐TA/B 5 ] in the aerobic oxidation of benzyl alcohols and tandem synthesis of bis(indolyl)methanes was exploited. The star‐shaped catalyst was characterized by different techniques such as FT‐IR, EDX, ICP, TEM, and TGA. TEM images revealed a honeycomb structure resulting from the accumulation of nanoparticles with size ranging between 2–6 nm. The high yields and excellent selectivity were obtained for the production of various benzaldehydes and bis(indolyl)methanes under aerobic conditions. Recycling tests, spectroscopic data, and leaching experiments testified that the title heterogeneous bio‐relevant catalyst preserved its activity and structural integrity during oxidation and coupling reactions. The presented catalytic systems qualify all requirements for efficient catalytic systems for applied goals.