67538-57-2Relevant academic research and scientific papers
Process for preparing monoalkyl phosphonites
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, (2008/06/13)
The invention relates to a process for preparing monoalkyl phosphonites of the formula I STR1 where R1 is (C1 -C16)-alkyl, cyclohexyl, cyclopentyl, or phenyl, each of which can also be substituted by halogen, (C1 -C6)-alkyl, (C1 -C6)-alkoxy or dialkylamino groups and R2 is (C1 -C8)-alkyl, which comprises reacting dichlorophosphines of the formula (II) where R1 has the meaning given above, with alcohols of the formula (III) where R2 has the meaning given above, the molar ratio of dichlorophosphine/alcohol being 1:3 to 1:20, and then, as soon as the content of ionic chlorine in the reaction mixture is 50-75% of the theoretical total chlorine content of the reaction mixture, reacting the mixture with ammonia.
ORGANOPHOSPHORUS CHEMISTRY. 2. THE REDUCTION OF QUINQUEVALENT PHOSPHORUS TO THE TRIVALENT STATE
Engel, Robert,Chakraborty, Subir
, p. 665 - 670 (2007/10/02)
Phosphoryl and phosphonyl chlorides are reduced conveniently to the monobasic acid forms of the corresponding phosphorous and phosphonous acids by the use of sodium borohydride dispersed in dioxane.
