Premium
Iridium Tetra(4‐carboxyphenyl) Porphyrin, Calix[4]pyrrole and Tetraphenyl Porphyrin Complexes as Potential Hydrogenation Catalysts
Author(s) -
Anjali Kaiprathu,
Aswini Manammuzhangiyil Sivadasan,
Aswin Peringayi,
Ganesh Venkatachalam,
Sakthivel Ayyamperumal
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201900762
Subject(s) - iridium , porphyrin , chemistry , catalysis , pyrrole , tetra , tetraphenylporphyrin , macromolecule , reactivity (psychology) , polymer chemistry , cyclohexane , photochemistry , organic chemistry , medicinal chemistry , medicine , biochemistry , alternative medicine , pathology
Here we report the preparation of first examples of iridium‐based organometallic macromolecules, viz., iridium‐tetra (4‐carboxyphenyl)porphyrin (IrTCPP), iridium‐calix[4]pyrrole (IrCP) iridium‐tetraphenylporphyrin (IrTPP), which are effective catalysts for hydrogenation of levulinic acid (LA) to γ‐valerolactone (GVL) and 1,4‐pentanediol under base free conditions. The turnover number in the range of 1220–2850 is evident for the chosen reaction using iridium macromolecule based catalysts. The heterogenization of homogeneous IrTCPP, IrCP, and IrTPP result in stable reactivity of the catalysts for several runs.