cas 14254-41-2, Bis(2,4-dichlorophenyl) chlorophosphate | Articles data ｜lookchem

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14254-41-2

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A highly enantioselective synthesis of phosphate triesters
A general methodology for the preparation of both enantiomers of a variety of trialkyl phosphates with enantiomeric excesses ranging from 87 to 92% is described. Bis(2,4-dichlorophenyl) phosphoramidates bearing a 2-substituted pyrrolidine moiety as the chiral auxiliary are prepared and examined for their stereoselectivity. Considerations based on both the absolute configuration of the product phosphates as well as the X-ray structural determination of one of the bis(2,4-dichlorophenyl) phosphoramidates suggest these substitutions occur with preponderant inversion of configuration at phosphorus.
Nakayama, Kensaku,Thompson, Wayne J.
p. 6936 - 6942
(2007/10/02)

Process for the preparation of alkyl diaryl phosphites and diaryl halophosphates
Substantially pure alkyl diaryl phosphites can be prepared by reacting a purified alkyl dihalophosphite with a phenol. Diaryl halophosphates of increased purity can be prepared by halogenating the purified alkyl dihalophosphites. This method avoids the by-products and unreacted starting materials generally included as impurities in prior art processes.
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(2008/06/13)

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Chemical Properties

Melting Point: 51-56 °C(lit.)
Boiling Point: 475.8 °C at 760 mmHg
Flash Point:401.481 °C
Density: 1.634 g/cm³
Solubility:Chloroform (Slightly), DMSO (Slightly), Ethyl Acetate (Slightly)
Storage Temp.:Refrigerator
Vapor Pressure: 9.25E-09mmHg at 25°C
Refractive Index: 1.606
PSA: 45.34000
LogP: 7.10490

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