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Reactions of Phosphine, Arsine, and Stibine with Carbonylbis(triethylphosphine)iridium(I) halides. Part 2. Reactions in Dichloromethane

DOI: 10.1039/DT9880000477

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 477 - 484 (1988)

Update date:2022-08-04

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Authors:

Ebsworth, E. A. V.Ebsworth, E. A. V.

Mayo, Richard A.Mayo, Richard A.

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Article abstract of DOI:10.1039/DT9880000477

In CD2Cl2, as in toluene, AsH3 and SbH3 react with trans- , by oxidative addition.With PH3, the product of the initial reaction at 180 K gives +, (3).In the presence of excess of PH3, (3) is converted into tH3)(P'cH2)>+, (4) (c and t imply cis and trans respectively to hydride).All these species were identified by 1H and 31P n.m.r. spectroscopy.The spectra show that P't is much more basic than P'c; P'tH3 in (4) can be deprotonated by NMe3, to give tH2)(P'cH2)>, (5), and P'cH2 in (4) can be protonated with excess of HCl to give tH3)(P'cH3)>2+, (6).Compound (5) reacts with B2H6 to give tH2BH3)(P'cH2BH3)>, (9); compound (4) reacts with a half-molar proportion of B2H6 to give (6) and (9).Reaction of<6-MeC6H4CHMe2-p)>2>, (10), with (5) in a 1:1 molar ratio gives 6-MeC6H4CHMe2-p)>2>, (11); with a 2:1 <(5):(10)> molar ratio, the initial product appears to be tH2RuCl2(η6-MeC6H4CHMe2-p)>(P'cH2)>, but on standing at room temperature for several hours this gives tH2)(μ-P'cH2)RuCl(η6-MeC6H4CHMe2-p)>. tH3)(μ-P'cH2)RuCl2(η6-MeC6H4CHMe2-p)> was formed from (4) and (10), and this could be deprotonated with NMe3.Reactions of (5) with (nbd=bicyclo<2.2.1>hepta-2,5-diene) and with (cod=cyclo-octa-1,5-diene) are also described.

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Products guided by the article

Product name:{Ir(CO)H(P(C2H5)3)2(PH2BCl3)2}

Cas No:113822-03-0

113822-03-0

R&D Labs maybe for 113822-03-0

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