Process for preparing dialkyl phosphorochloridothioates

Details Process for preparing dialkyl phosphorochloridothioates Process for preparing dialkyl phosphorochloridothioates

1978-03-02

1979-06-26

Rotman, Alan L.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

260986, C07F 920

Patent

active

041592891

ABSTRACT:
An improved process for the preparation of O,O-dialkyl phosphorochloridothioates in which distillation to recover substantially pure product is carried out in presence of a solubilizing or suspending agent, for example, liquid hydrocarbons, particularly aromatics having at least 10 carbon atoms which have good sulfur solubility, higher boiling point than the product and are inexpensive; specifically, naphthalenes are useful.

REFERENCES:
patent: 2868700 (1959-01-01), Brown et al.
patent: 3356774 (1967-12-01), Niermann et al.
patent: 3502750 (1970-03-01), Anglaret et al.
patent: 3836610 (1974-09-01), Diveley
patent: 3856898 (1974-12-01), Diveley

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