Premium
New Reactions of Cyclopentadienylnickel Chelates with Secondary Phosphane Tethers
Author(s) -
Heinisch Sandra Lauren,
Werner Irina,
Butenschön Holger
Publication year - 2021
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.202100147
Subject(s) - chemistry , deprotonation , chelation , aryl , phosphinidene , cationic polymerization , tribromide , alkyl , lewis acids and bases , indium , medicinal chemistry , organic chemistry , ion , catalysis
In continuation of our research in cyclopentadienylalkylphosphane nickel chelates with secondary phosphane tethers the first cationic representatives of this class of compounds are reported. These were obtained by reaction of the respective bromo complex with tris(4‐trifluoromethylphenyl)phosphane as well as with a number of alkyl and aryl isonitriles in the presence of indium tribromide. This Lewis acid is crucial for the success of the reactions leading to the respective tetrabromoindate salts. The compounds were characterized spectroscopically, including rare 14 N, 13 C couplings being observed. Finally, deprotonation experiments are reported, which provide some evidence for deprotonation taking place, although the expected phosphinidene chelates could not be isolated due to rapid decomposition.