1079-66-9Relevant articles and documents
Challenger, F.,Pritchard, F.,Jinks, J. R. A.
, p. 864 - 875 (1924)
Radical-initiated P,P-metathesis reactions of diphosphanes: Evidence from experimental and computational studies
Branfoot, Callum,Young, Tom A.,Wass, Duncan F.,Pringle, Paul G.
, p. 7094 - 7104 (2021)
By combining the diphosphanes Ar2P-PAr2, where Ar = C6H5, 4-C6H4Me, 4-C6H4OMe, 3,5-C6H3(CF3)2, it has been shown that P,P-metathesis generally occurs rapidly under ambient conditions. DFT calculations have shown that the stability of unsymmetrical diphosphanes Z2P-PZ′2 is a function of the difference between the Z and Z′ substituents in terms of size and electronegativity. Of the mechanisms that were calculated for the P,P-metathesis, the most likely was considered to be one involving Ar2P radicals. The observations that photolysis increases the rate of the P,P-metatheses and TEMPO inhibits it, are consistent with a radical chain process. The P,P-metathesis reactions that involve (o-Tol)2P-P(o-Tol)2 are anomalously slow and, in the absence of photolysis, were only observed to take place in CHCl3 and CH2Cl2. The role of the chlorinated solvent is ascribed to the formation of Ar2PCl which catalyses the P,P-metathesis. The slow kinetics observed with (o-Tol)2P-P(o-Tol)2 is tentatively attributed to the o-CH3 groups quenching the (o-Tol)2P radicals or inhibiting the metathesis reaction sterically.
Synthetic method of RRPCl
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Paragraph 0027-0041, (2020/04/06)
The invention provides a synthetic method of RRPCl, and belongs to the field of organic matter synthesis. The synthetic method of RRPCl solves the problems of low reaction yield and the like in the existing RRPCl synthesis, and is characterized in that RRP(O)H is dissolved in an organic solvent and then reacts with acetyl chloride to obtain the RRPCl, and the chemicalreaction formula of the RRPCl is shown as a formula (I), wherein R1 and R2 are aryl and alkyl. The synthetic method has the advantages of the high yield and the like.