41508-86-5Relevant academic research and scientific papers
Synthesis of Diaminodiphenylphosphonium Salts
Cristau, Henri-Jean,Garcia, Chantal
, p. 315 - 317 (1990)
A new general synthesis of diaminodiphenylphosphonium salts consists of the successive reactions of chlorodiphenylphosphine with bromine and then with primary or secondary amines.The method can be applied to various types of amines.
Synthesis of Nonsymmetric Iminophosphonamines by Kirsanov Condensation
Kalsin, Alexander M.,Peganova, Tatyana A.
, p. 433 - 440 (2020/01/23)
Despite the growing interest in iminophosphonamines R 2 P(NHR′)(NR′), nonsymmetric examples bearing different N,N′-substituents are quite rare and have been prepared exclusively by the Staudinger reaction. We report here the synthesis of a series of new iminophosphonamines Ph 2 P(NHR)(NR′) (R = Me, t -Bu, o -Tol; R′ = p -Tol, o -Tol, 2,6-Xyl, 2,6-Diip, p -Ts) showing that the Kirsanov condensation is a viable and simpler approach, although with some limitations. This method allows the synthesis to be accomplished in a one-pot manner via stepwise double amination of a trihalophosphorane and permits the introduction of at least one sterically bulky N-substituent. The second amination step is shown to be highly sensitive to: (a) the steric bulk of the amine, and (b) the acidity of the aminohalophosphonium intermediate.
Synthesis of diaminophosphonium salts [Ph2(ArNH) 2P]+Br- (Ar = o-MeC6H4, p-MeC6H4, p-PriC6H4, p-EtO2CC6H4
Gusev,Peganova,Gonchar,Petrovskii,Lyssenko,Ustynyuk
experimental part, p. 322 - 331 (2009/09/25)
The behavior of different anilines H2NC6H 4R (R = o-Me, p-Me, o-, m- and p-iPr, p-OMe, p-CO 2Et) and 2,6-Me2C6H3NH2 towards trihalophosphoranes was studied.
Synthesis of stabilized diaminophosphonium diazaylides
Cristau,Taillefer,Jouanin
, p. 69 - 74 (2007/10/03)
The first examples of metalated stabilized diaminophosphonium diazaylides 7 have been synthesized in good yields from acylazides by two different synthetic pathways involving either an original and direct Staudinger reaction with the sodium phosphide (diazaylides 7′) or a more classical Staudinger reaction with diphenylphosphine and a subsequent deprotonation (diazaylides 7″). Additionally, the related new diaminophosphonium monoazaylides 6 and diaminophosphonium salts 5 have also been synthesized.
