1994
DOI: 10.1007/bf00139093
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Platinum group metal functionalized phosphine complexes. Part 1: Phosphinoamide ruthenium(II) complexes

Abstract: Functionalized phosphine Pt complexes 1. 283 complexes. Summary Three new bifunctional phosphinoamide ligands of the type Ph2PCH2C(O)NHR (R = H, HDPA; Me, MDPA; Ph, PDPA) were prepared and characterized. Their ruthenium(II) complexes prepared from two different precursors, RuC12-(DMSO)4 and RuClz(PPh3) 3, are of similar composition and correspond to the formula, [RuCI(L)2(P O)2]C1 (L-DMSO/PPh3; phosphinoamide). However, RuC13-(AsPh3)2(MeOH) reacts with the phosphinoamide to yield a reduced product of the cis-R… Show more

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Cited by 3 publications
(5 citation statements)
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“…Enolates are known to be ambident reagents but the reaction of Li[CH 2 C( O)Ph] with Ph 2 PCl in THF affords the ketophosphine Ph 2 PCH 2 C(O)Ph in a completely chemoselective manner. The same holds true with Li[CH 2 C( O)NPh 2 ] which leads to Ph 2 PCH 2 C(O)NPh 2 ( L 1 ). , Related 2-(diphenylphosphino)acetamide ligands have been prepared by reaction of KPPh 2 with ClCH 2 C(O)NHR (R = H, Me, Ph) . The reactivity of stable metal complexes containing P-coordinated α-phosphino enolates [Ph 2 PCH C( O)R] - (R = OEt, Ph) toward electrophiles has accordingly given rise to reactions which led to C enolate −electrophile or O enolate −electrophile bond formation.…”
Section: Discussionmentioning
confidence: 87%
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“…Enolates are known to be ambident reagents but the reaction of Li[CH 2 C( O)Ph] with Ph 2 PCl in THF affords the ketophosphine Ph 2 PCH 2 C(O)Ph in a completely chemoselective manner. The same holds true with Li[CH 2 C( O)NPh 2 ] which leads to Ph 2 PCH 2 C(O)NPh 2 ( L 1 ). , Related 2-(diphenylphosphino)acetamide ligands have been prepared by reaction of KPPh 2 with ClCH 2 C(O)NHR (R = H, Me, Ph) . The reactivity of stable metal complexes containing P-coordinated α-phosphino enolates [Ph 2 PCH C( O)R] - (R = OEt, Ph) toward electrophiles has accordingly given rise to reactions which led to C enolate −electrophile or O enolate −electrophile bond formation.…”
Section: Discussionmentioning
confidence: 87%
“…They were characterized by their different chemical shifts in 1 H, 31 P{ 1 H} and 13 C{ 1 H} NMR spectroscopies (Table 1). 23 The reactivity of stable metal complexes containing P-coordinated…”
Section: Resultsmentioning
confidence: 99%
“…In our case, the function Z will represent an ester, a carboxylate, a ketone, an amide, a nitrile group, or an oxazoline moiety , situated in the β-position to the phosphorus atom as in ligands L 1 to L 7 , respectively. The synthetic principle that first led to L 2 and L 3 , namely the reaction of the corresponding lithium enolate Li[CH 2 C(O)R] with a chlorophosphine, , has found numerous applications.…”
Section: Introductionmentioning
confidence: 99%
“…11 At variance with these functional phosphines, R-stabilized phosphoylides of the type R 3 Pd CHsZ do not interact with metals via the P atom and will not be considered here; their behavior has been discussed elsewhere. 12,13 In our case, the function Z will represent an ester, 14 a carboxylate, 15 a ketone, 16 an amide, [17][18][19] a nitrile group, 14 or an oxazoline moiety 20,21 situated in the β-position to the phosphorus atom as in ligands L 1 to L 7 , respectively. The synthetic principle that first led to L 2 and L 3 , namely the reaction of the corresponding lithium enolate Li[CH 2 C(O)R] with a chlorophosphine, 16,22 has found numerous applications.…”
Section: Introductionmentioning
confidence: 99%
“…The complexes obtained were brown (1), pale yellow (2) and yellow (3). (4); Me, (5); Ph, (6)]. A N 2 purged CH2C12 solution of RhC1-(CO)(PPh3) 2 (0.20 g, 0.29 mM) was treated with an equimolar quantity of HDPA (0.070g), MDPA (0.075 g) or PDPA (0.093 g) under reflux for 3-4 h. Concentration of the reaction mixture and addition of n-C6Ha2 yielded yellow products.…”
Section: Synthesis Of Rhodium(i) Complexesmentioning
confidence: 99%