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Aroylphosphanes: Base‐Free Synthesis and Their Coordination Chemistry with Platinum‐Group Metals
Author(s) -
Saunders Amy J.,
Crossley Ian R.,
Roe S. Mark
Publication year - 2016
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.201600592
Subject(s) - chemistry , platinum , platinum group , palladium , rhodium , base (topology) , group (periodic table) , yield (engineering) , stereochemistry , lone pair , medicinal chemistry , chloride , molecule , catalysis , organic chemistry , mathematical analysis , materials science , mathematics , metallurgy
A series of aroylphosphanes have been prepared in good yield by base‐free condensation of the respective aroyl chloride and HPPh 2 . Alongside the cyclophane m ‐{‐C(O)‐C 6 H 4 (C(O)PMe)} 2 ( 1 ), the IR spectroscopic signatures of C 6 H 4 R{C(O)PPh 2 } (R = 3‐Me 2 , 3‐CH 2 Cl 3 , 4‐CO 2 Me 4 , 4‐CN 5 ) and the bis(aroylphosphanes) C 6 H 4 {2,6‐C(O)PPh 2 } 2 ( 6 ) and C 6 H 3 N{2,6‐C(O)PPh 2 } 2 ( 7 ) are consistent with a manifestation of “phosphomide” character; however, weight of evidence suggests negligible contribution from this canonical form. Comparison is drawn to the structurally characterised O=P(C 6 H 5 Me‐2) 3 ( 8 ) in which the lone pair is sequestered. The coordination of 2 – 5 to rhodium(I), palladium(II) and platinum(II) is described, affording rare examples of aroylphosphane complexes of the platinum‐group metals.