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Methylphosphonyl dichloride (DC) or dichloro is an organophosphorus compound. It has commercial application in oligonucleotide synthesis, [1] but is most notable as being a precursor to several chemical weapons agents. It is a white crystalline solid that melts slightly above room temperature. [2]
Due to the recycling problem of phosphoryl chloride, SW was adopted in step three of the DMHP process in the preparation of Sarin. [5] SW was also adopted as a standard precursor to V agents, having been used to prepare QL for unitary and binary VX. SW was the first agent adopted to prepare VX in one pot reaction by aqueous medium. [6]
It will react with thionyl chloride to produce methylphosphonic acid dichloride, which is used in the production of sarin and soman nerve agents. Various amines can be used to catalyse this process. [3] It can be used as a sarin-simulant for the calibration of organophosphorus detectors.
Methylphosphonic acid is an organophosphorus compound with the chemical formula CH 3 P(O)(OH) 2. The phosphorus center is tetrahedral and is bonded to a methyl group, two OH groups and an oxygen. Methylphosphonic acid is a white, non-volatile solid that is poorly soluble in organic solvent but soluble in water and common alcohols.
Examples for such compounds are NTMP, EDTMP and DTPMP. These phosphonates are the structural analogues to the well-known aminopolycarboxylate such as EDTA . The stability of the metal complexes increases with increasing number of phosphonic acid groups.
[1,1'‑Bis(diphenylphosphino)ferrocene]palladium(II) dichloride is a palladium complex containing the bidentate ligand 1,1'-bis(diphenylphosphino)ferrocene (dppf), abbreviated as [(dppf)PdCl 2]. This commercially available material can be prepared by reacting dppf with a suitable nitrile complex of palladium dichloride : [ 1 ]
Methylphosphonyl difluoride (DF), also known as EA-1251 [2] or difluoro, [3] is a chemical weapon precursor. Its chemical formula is CH 3 POF 2.It is a Schedule 1 substance under the Chemical Weapons Convention.
Cp 2 TiS 5 reacts with sulfur and selenium chlorides, E x Cl 2, to afford titanocene dichloride and various S 5+x and S 5 Se x rings. Illustrative is the synthesis of S 7 from disulfur dichloride: [5] (C 5 H 5) 2 TiS 5 + S 2 Cl 2 → (C 5 H 5) 2 TiCl 2 + S 7. It also reacts with alkenes and ketenes to give heterocycles composed of Ti, C and S.