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Organophosphate flame retardants are part of a wider family of phosphorus-based agents which include organic phosphonate and phosphinate esters, in addition to inorganic salts. [ 56 ] [ 57 ] When some prominent brominated flame retardant were banned in the early 2000s phosphorus-based agents were promoted as safer replacements.
Organophosphate nerve agents (3 C, 5 P) Organophosphorohalidates (1 C, 1 P) Organophosphoropseudohalidates (1 P) P. Phospholipids (2 C, 47 P) Phosphoramidates (13 P)
Some organophosphorus compounds are highly effective insecticides, although some are extremely toxic to humans, including sarin and VX nerve agents. [2] Phosphorus, like nitrogen, is in group 15 of the periodic table, and thus phosphorus compounds and nitrogen compounds have many similar properties.
Also called phosphazenes are represented with the formula (−N=P(−X) 2 −) n, where X = halogen, alkoxy group, amide and other organyl groups. One example is hexachlorocyclotriphosphazene (−N=P(−Cl) 2 −) 3. Bis(triphenylphosphine)iminium chloride [Ph 3 P=N=PPh 3] + Cl − is also referred to as a phosphazene, where Ph = phenyl group.
Organophosphorus compounds are chemical compounds containing carbon-phosphorus bonds. Subcategories. This category has the following 16 subcategories, out of 16 total
The use of organophosphorus-based nucleophiles is typical. For example, lithium diphenylphosphide is readily methylated with methyl iodide to give methyldiphenylphosphine: LiiP(C 6 H 5) 2 + CH 3 I → CH 3 P(C 6 H 5) 2 + LiI. Phosphine is a precursor to some tertiary phosphines by hydrophosphination of alkenes.
Organothiophosphates or organophosphorothioates are a subclass of organophosphorus compounds and of thiophosphate compounds.They are the organic compounds that contain a phosphate group in which one or more oxygen atoms is substituted by sulfur.
Organothiophosphates are a subclass of organophosphorus compounds that are structurally related to the inorganic thiophosphates. Common members have formulas of the type (RO) 3−x (RS) x PS and related compounds where RO is replaced by RS.