23604-03-7

Upstream product

• 14647-25-7 [Pt(dppe)Cl₂] 
• 15843-43-3 silver oxalate 
• 12080-32-9 dichloro(1,5-cyclooctadiene)platinum(ll) 
• 83095-83-4 [platinum(II)dichloride(1,2-bis(diphenylphosphino)ethane)] 

Downstream Products

• 69101-79-7 Pt(1,2-bis(diphenylphosphino)ethane)diphenylacetylene 
• 56179-45-4 Pt(C₂C₆H₅)2((C₆H₅)2PCH₂CH₂P(C₆H₅)2) 
• 105471-30-5 [PtCl(P(CH₂CH₂CH₂CH₃)3)((C₆H₅)2PCH₂CH₂P(C₆H₅)2)]⁽¹⁺⁾ 
• 83571-74-8 (η2-ethene){bis(1,2-diphenylphosphino)ethane}platinum(0) 
• 25787-92-2 (1,2-bis(diphenylphosphane)ethane)carbonateplatinum(II) 
• 105471-30-5 C₃₈H₅₁ClP₃Pt⁽¹⁺⁾ 
• 94929-02-9 {Pt(C₂O₄)(P(CH₂CH₂CH₂CH₃)3)2} 
• 69058-68-0 (1,2-bis(diphenylphosphino)ethane)Pt(CO)2 
• 29421-07-6 cis-[1,1'-(ethane-1,2-diyl)bis[1,1-diphenylphosphine-κP]]diiodoplatinum 
• 66467-56-9 PtH₂(dppe) 
• 83095-83-4 [platinum(II)dichloride(1,2-bis(diphenylphosphino)ethane)] 
• 704210-62-8 Pt₂H₃((C₆H₅)2PCH₂CH₂P(C₆H₅)2)2⁽¹⁺⁾ 

Relevant academic research and scientific papers

Photochemical reactions of diphosphineplatinum(II) oxalate complexes

Irradiation at 254 nm of CH3CN/C6H6 or PhCn solutions of produces 2 equiv. of CO2, and in the presence of PhCl or PhI yields .With CO or PhCCPh the products are or CPh)(dppe)>, but in the latter case extended photolysis yields CPh)(dppe)>.Photolysis in the presence of H2 gives a mixture of the + and + cations.Simple elimination of CO2 does not occur in all cases, as illustrated by the formation of when is photolyzed in the presence of methanol.Photochemical reactions of the related complexes (L2 = dppm, dcpe) are also described.

Mechanistic studies of the thermolytic and photolytic rearrangement of [bis(diphenylphosphino)ethane]bis(neophyl)platinum(II)

Comparative mechanistic studies are presented of the thermolytic and photolytic behavior of the bis-(neophyl)platinum(II) derivative Pt(CH2CMe2Ph)2(dppe) (neophyl = 2-methyl-2-phenylpropyl; dppe = 1,2-bis(diphenylphoephino)ethane). Thermolytic rearrangement is less facile than for monodentate P-donor analogues and affords the platinaindan Pt(2-C6H4CMe2CH2)(dppe) by intramolecular aromatic C-H activation and H-transfer to eliminated tert-butylbenzene. The kinetic isotope effect on metallacyclization (kobsH/kobsD = 2.40) and the negative activation entropy (ΔS≠obs = -13 (±4) J·K-1·mol-1) suggest a pathway in which scission of one Pt-P is mechanistically significant but C-H addition to Pt has the most energetic transition state. Photolytic rearrangement in toluene-d0 proceeds by two major paths, both of which involve primary Pt-C homolysis. The resultant neophyl radical may then provide a destination for migrating hydrogen in a cyclometalation of the residual 17-electron organoplatinum species, leading to Pt(2-C6H4CMe2CH2)(dppe). Alternatively, H-abstraction by the neophyl fragment within the solvent cage produces a benzyl radical which recombines with the metal moiety to give Pt(CH2Ph)(CH2Me2Ph)(dppe). This benzylplatinum complex is also photolabile, giving ultimately platinaindan via benzyl radical expulsion. This indirect solvent metalation is not evident during photolysis in toluene-d8 and in benzene.

REACTIONS OF DIPHOSPHINEPLATINUM(II) OXALATE COMPLEXES WITH PHENYLACETYLENE. FORMATION OF PHENYLALKYNYLPLATINUM COMPLEXES

reacts thermally with PhCCH to produce CPh)2(dppe)>, which has been prepared by alternative routes.Similar treatment of initially produces CPh)2(dpmm)>, which rearranges to give cis,cis-CPh)4(μ-dppm)2>.Reaction of with PhCCH/KOH/18-crown-6, or with (PhCC)SnMe3, gives CPh)2(dpmm)>, which may be converted to the cis,cis-dimer by addition of oxalic acid.Ultraviolet irradiation or refluxing with a trace amount of dppm converts CPh)2(dppm)> to trans,trans-CPh)4(μ-dppm)2>, but the cis,cis-dimer is stable under these conditions. (L = PPh3, PEt3) complexes also react thermally with PhCCH to yield CPh)2L2> species.