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High‐Yielding Synthesis of a Hetero‐Pacman Compound and the Characterization of Intermediates and Side‐Products
Author(s) -
Schwalbe Matthias,
Wrzolek Pierre,
Lal Garima,
Braun Beatrice
Publication year - 2014
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.201402459
Subject(s) - chemistry , ruthenium , moiety , terpyridine , combinatorial chemistry , molecule , porphyrin , catalysis , stereochemistry , metal , organic chemistry
Abstract Through an optimized synthetic procedure, metalloligand 5 , which features a hetero‐Pacman scaffold comprising a porphyrin and a terpyridine moiety, has been assembled by a double Suzuki reaction. In a subsequent step, a ruthenium‐bipyridine fragment was introduced at the terpyridine coordination site of metalloligand 5 to form complex 6 , which was fully characterized and its potential application in water oxidation catalysis tested. A number of side‐products were isolated and characterized during the two‐step synthesis procedure, including a hydroxylated version of the boronic acid substituted precursor molecule derived by a base‐assisted rearrangement. The compounds described herein extend the Pacman concept to the assembly of different metal combinations with different coordination spheres and their interactions in the activation of small molecules.