40391-99-9Relevant articles and documents
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Kabachnik,M.I. et al.
, (1978)
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Efficient synthesis of pamidronic acid using an ionic liquid additive
Grün, Alajos,Nagy, Dávid Illés,Garadnay, Sándor,Greiner, István,Keglevich, Gy?rgy
, p. 475 - 478 (2016)
An efficient method was developed for the synthesis of pamidronic acid involving the reaction of β-alanine with three equivalents of phosphorus trichloride and two equivalents of phosphorous acid at 75 °C in the presence of 0.3 or 0.6 equivalents of [BMIM][PF6] as an additive.
The synthesis of hydroxymethylenebisphosphonic- (dronic-) and acyl-ethoxycarbonyl-methylphosphonate derivatives
Für, Csilla Sepsey,Grün, Alajos,Gulyás, Kinga V.,Keglevich, Gy?rgy,Szalai, Zsuzsanna,Zahár, Róbert
, (2021/12/23)
Recent results on the synthesis of substituted hydroxymethylenebisphosphonic acids (A and B), as well as acylated ethoxycarbonyl-methylphosphonate derivatives (C and D) are summarized. In the first part, solvent mixtures were applied in the preparation of known dronic acids, while in the second series of experiments, new acyl species were synthesized.
Copolymers having gem-bisphosphonate groupings
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Page/Page column 9, (2018/10/15)
A copolymer includes a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups. The copolymer further includes gem-bisphosphonate groups. A composition, such as n admixture for suspensions of mineral particles, includes the copolymer. The copolymer can be used for fluidifying suspensions of mineral particles and maintaining the fluidity of such suspensions. The copolymer can also be used for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates.