ChemInform Abstract: FOUR‐CENTER REARRANGEMENT OF PHOSPHORUS(III) N‐SILYLATED AMIDES

New methods of syntheses of silyl derivatives of phosphorus(V) thioacids on the basis of tetraphosphorus decasulfide, 1,3,2,4-dithiadiphosphetane-2,4-disulfides, and bis(trimethylsilyl)acetamide

“…Bis(trimethylsilyl) amides of carboxylic acids have been reported to be efficient silylating agents for amides, ureas, amino acids, hindered phenols, carboxylic acids, enols, chlorides of trivalent and pentavalent phosphorus acids and thioacids [4][5][6][7][8][9]. Taking into account the rather high silylating ability of silylated amides, we have studied the reactions of disilylated acetamide with phosphorus sulfides.…”

Amides of Trivalent Phosphorus Acids as Phosphorylating Reagents for Proton-Donating Nucleophiles

“…532,572,573 Depending on the reaction conditions and the ratio of the reactants, unsubstituted o-phenylenediamine is converted upon phosphorylation by phosphorus diand triamides into either ordinary phosphoruscontaining rings or the products of their additional phosphorylation at nitrogen. 551,574,575 It can be seen that N,N-tetraethyl phenylphosphonous diamide can react according to a standard scheme 576 or according to an abnormal route, which includes disproportionation (Scheme 111). 577 Note that systems related to the resulting phosphorane regarding the coordination of phosphorus are being thoroughly studied now.…”

Reaction of N‐thioamido amidines with phosphoramide derivatives: Synthesis of 2‐substituted‐1,3,5,2‐triazaphosphorines

“…The conversion of phosphoramides requires more drastic conditions such as refluxing for several hours in high boiling solvents such as toluene or xylene, to effect cyclization reaction with compounds bearing two nucleophilic sites in 1,4-or SCHEME 1 1,5-positions [21,22]. On the other hand, this kind of reaction, i.e.…”