Steric Control in the Synthesis of Phosphinous Acid-Coordinated Mono- and Binuclear Platinum(II) Complexes

Abstract

International audienc

Anionic phosph(in)ito (“phosphoryl”) ligands: Non-classical “actor” phosphane-type ligands in coordination chemistry

“…The coordinated P(III)−phosphinous acid ligands stemming from SPOs are more than "classical" phosphanes and possess their own steric and electronic properties. Over the past few years, the knowledge of their coordination chemistry has significantly evolved but investigations on the understanding of their specificity, with respect to other P(III)-ligands, are scarce [80][81][82]. The presence of an acidic "hydroxy" substituent in −position to the phosphorus atom plays a critical role in some catalytic chemical transformations.…”

“…2), the self-assembled supramolecular mono-anionic bidentate phosphinous acid and  1 -P−phosph(in)ito ligands held together by an intramolecular hydrogen bond. These ligands act as a mono-anionic diphosphorus chelate for the metal center [80,82,176,177 and references cited in section 2.3]. The use of SPO preligands was recently recognized as the first use of a supramolecular bidentate ligand in catalysis [74].…”

[2+1] Cycloaddition Affording Methylene- and Vinylidenecyclopropane Derivatives: A Journey around the Reactivity of Metal-Phosphinito-Phosphinous Acid Complexes

“…Therefore, the preparation of bis‐phosphinous acid platinum complexes 20 has been tested starting from other platinum salts. The use of the more soluble PtCl 2 (cod) allowed to carry out the reaction at room temperature and, after 2 days, complex 20c was isolated in quantitative yield and as a 1:1 mixture of cis and trans isomers (Scheme ) ,. In this case, no racemization of the phosphorus stereogenic center occurred.…”

Organomonophosphines in PtP2Cl2 derivatives: structural aspects

“…2007a ), P(Et) 2 (Ph)( Domanska-Babul et al 2007b ), P(H) (mesityl) 2( Glueck et al 2002, Pelczar et al 2002, P(OH) (Bu t ) 2( Achard et al 2010 ), P { N(H)Pr i } (Ph) 2( Brown et al 2007 ), P(allylamino)(Ph) 2( Slawin et al 2005 ), P { N(H)Ph } . (Ph) 2 ( Priya et al 2003 ), P(F)(CF 3 ) 2 ( Lewis-Alleyne et al 2010 ), P(OMe)(Ph) 2 ( Slawin et al 2007b ), P(OMe) 2 (Ph) ( Slawin et al 2007a ), P { (CH 2 ) 3 NMe 2 } (Ph) 2 ( Habtemariam et al 2001 ), P { FC = C(H)F } (Ph) 2 ( Barnes et al 2010 ), P { ClC = C(H)F } (Ph) 2 ( Barnes et al 2010 ), P(CH 2 SiMe 3 )(Ph) 2 ( Benito et al 2002 ), P(CH 2 C 6 H 4 )(Ph) 2 ( Davis and Meijboom 2011 ), P(mesityl)(Ph) 2 ( Petzold et al 2009 ), P(Me)(pyrrolidinyl) 2 ( Clarke et al 2000 ), P(pyrrolidinyl) 3 ( Clarke et al 2000 ), P(2-CNpyrrolyl)(Ph) 2 ( Burrows et al 2003 ), P(C 10 H 7 F 6 O 2 ) ( Dillon et al 2010 ), P(C 15 H 24 N)(Ph) 2 ( Mokuolu et al 2004 ), P(pyrrolidinyl) 2 (Ph) ( Clarke et al 2002 ), P( η 2 -phosphephane)(Ph) (at 293 and 173 K monoclinic and at 100 K orthorhombic; Baber et al 2007 ), P( η 2 -phosphinane) (Bu t ) ( Baber et al 2007 ), P { C 6 H 4 (OMe)-3 } (Ph) 2 ( Gulyas et al 2007 ), P { C 6 H 4 (NMe 2 )-4 } (Ph) 2 ( Muller and Meijboom 2011 ), P { η 2 -HC = C(Me)C(Me) = CH } (NPr i 2 ) ( Hydrio et al 2002 ), P { η 2 -HC = C(Ph)C(Ph) = CH } (NPr i 2 ) ( Hydrio et al 2002 ), P( η 2 -C 12 H 8 O)(OMe) ( Holtzbauer et al 2009 )], P(o-Br phenoxy) (Pr i ) 2 ( Ruhland et al 2007 ), P(H)( η 2 -C 10 H 11 O)( Ostermeier et al 2002 ), P { (CH 2 ) 3 P(O)(OEt) 2 } (Ph) 2( Guerrero et al 2002( Guerrero et al et al 2009 ), P(OH)( η 2 -C 8 H 14 )( Carreira et al 2009 ), P(CH 2 Et)( η 2 -C 8 H 14 )( Carreira et al 2009 ), P(C 14 H 10 F 4 S)(Ph) 2( Rosen et al 2011 ), P { 4-C 6 H 4 CH 2 P(O)(OEt) 2 } (Ph) 2( Rohlik et al 2006 ), P { 3,5-C 6 H 3 )(CH 2 P(O)(OEt) 2 ) 2 } (Ph) 2( Rohlik et al 2006 ), P { CH 2 N(H) = NC(C 12 H 8 ) } (Ph) 2( Elsegood et al 2009 ), P( η 2 -C 8 H 14 ) { (CH 2 ) 3 NMe 2 }( Bungu and Otto 2009 ), …”