ChemInform Abstract: Reaction of Bisdithiophosphonates with p‐Quinones.

1,2:5,6-Di-O-Cyclohexylidene-d-Mannitol and Its Bis(Trimethylsilyl) Ether in the Dithiophosphorylation Reactions

“…These compounds seem to be secondary products formed from arylbisdithiophosphonic acid as an initial product via the elimination of hydrogen sulfide and monomeric unit of dithiadiphosphetanes 1 by the effect of acetonitrile as a sulfur acceptor. Indeed, we have previously shown that bisalkyldithiophosphonic acids react with acetonitrile to form cyclic alkyltrithiopyrophosphonates and thioacetamide . On the other hand, anhydrous benzene seems to be the most appropriate inert solvent for successful synthesis of stable bisaryldithiophosphonic acids .…”

Synthesis of Phosphorus-Containing Macrocycles and Cryptands

“…[161][162][163][164] The reaction of bis(dithiophosphonic acids) with RCN gives a 1:1 adduct which decomposes to RC(S)-NH2 and cyclic trithiopyrophosphonates 112. The stability of 112 decreases as n increases (Scheme 59). 165 Lithium salts of polyfluorinated alcohols treated with «s-l,3-di-fert-butyl-2,4-dichloro-l,3,2,4-diazadiphosphetidine give rise to the corresponding polyfluoro bis-(alkoxy-bridged) diazadiphosphetidine species 113 (Scheme 60).166…”

Reaction of 2,4-Diaryl-1,3-dithia-2,4-diphosphetane-2,4-disulfides with resorcinol

“…[3][4][5][6][7][8][9]. The reactions of 2,4-dialkyl-or diaryl-1,3-dithia-2,4-diphosphetane-2,4-disulfides with glycols are used to obtain bisdithiophosphonic acids [1][2][3][4][5][6][7][8]. At the same time the reaction of catechol with 2,4-diferrocenyl-1,3-dithia-2,4-diphosphetane-2,4-disulfide results in 1,3,2-dioxaphospholane derivative [10], which is a secondary product formed during the desulfurization of the intermediate phenylene bisdithiophosphonic acid.…”

“…Bisdithiophosphonic acids containing two α,ω-dithiophosphoryl groups [1,2] are of interest as the podand-like compounds in substitution, intercalation, addition, and complexation reactions to create on their basis antioxidants for polymers, antioxidant additives for lubricating oils, corrosion inhibitors, extractants of metal ions, etc. [3][4][5][6][7][8][9].…”