Summary
The phosphinic acid chlorides6 and9 react in good yields with N,N-dimethylaminoethanol to the corresponding esters3 and10. Reaction of the phenylphosphonous acid esters1 and2 with arylbromides, heteroarylbromides and carboxylic acid chlorides give esters of unsymmetrical phosphinic acids. Similarly, cyanphenylphosphinic acid ethylester reacts with aliphatic amines to phosphonic acid esterchlorides.
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Neidlein, R., Buseck, S. Alkylester und N,N-Dimethylaminoethylester unsymmetrischer Phosphinsäuren. Monatsh Chem 124, 309–317 (1993). https://doi.org/10.1007/BF00810588
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DOI: https://doi.org/10.1007/BF00810588