7422-71-1Relevant academic research and scientific papers
Zwitterionic Phosphoranides as Intermediates in the Reaction of Phosphorus Tribromide with N,N-Dimethyl-N′-arylformamidines
Marchenko, Anatoliy P.,Koidan, Georgyi N.,Hurieva, Anastasia N.,Rozhenko, Alexander B.,Kostyuk, Aleksandr N.
, p. 12 - 22 (2016)
Cyclic zwitterionic phosphoranides 2a,b were found to be intermediate products in the reaction of N,N-dimethyl-N′-(aryl)formamidines with PBr3. The structure of phosphoranide 2a was determined by means of the X-ray and quantum chemistry investigations. Mechanism of its formation was proposed based on Density functional theory (DFT) calculations. Reactions of 2 with amines and selenium yielded either C-phosphorylated formamidines or benzazaphospholes. The first example of intramolecular heterocyclization of a pentavalent phosphorus derivative 15b into 3Cyrillic capital letter en-1,3-benzazaphosphole has been demonstrated.
