Anatoliy Marchenko

Synthesis of Hexaisopropyltriamidephosphite: Myth or Reality?

Results of our work allowed us to assert that the methods for synthesis of triamide (i-Pr2N)3P 1 described are wrong.1–4 It was shown that diamidohalogenphosphites (i-Pr2N)2PHlg (Hlg = Cl,Br,I) do not react with di(isopropyl)amine even under harsh conditions such as heating up to 240◦C in various solvents. At the same time, less sterically hindered phosphenium cation 2 easily react with di(isopropyl)amine, affording diphosphine 5 instead of the expected triamide 1. The diphosphine 5 is also formed in the reaction of the phosphenium cation 2 with ketimine i-PrN = CMe2, with the reaction running via formation of monophosphine 3.

C-Thiocarbamoylation of Electron-Rich Heterocycles and Enamines with Amidophosphonium Isothiocyanates

Amidophosphonium isothiocyanates thiocarbamoylate a series of electron-rich heterocycles and enamines at the nucleophilic carbon atom to form phosphazothiocarbonyl compounds. From the most active heterocycles, bis(phosphazothiocarbonyl) derivatives can be obtained.

Reaction of Nucleophilic Polyhalogenalkylation in Two and Three-Component Systems

Abstract The halophilic reactions of the derivatives of PIII R3 P (R = R2N, Alk, Ar) with CCl4, having preparative signifi-cance, are studied thoroughly. As far as the compounds of R2PHlg type are concerned, at the beginning of our re-searches there was was an opinion that the interaction of R2PHlg with CC14 cannot be possible because of the low nucleophility of phosphorus. We determined for the first time that diamidochlorophosphites 1 react with CC14 at the temperature 20°C and form the compounds 2, 3.1