PROCESS FOR PRODUCING POLY-(HYDROXYPHOSPHONIC ACIDS) AND THEIR DERIVATIVES

Poly-hydroxy-phosphomium acids of formula: R,c(CPO3H2) 2-0H-(PO2H-C(PO3H)(R,)-O)n-R, half-ester dervis, and R2-N (C-(R3)2-P(O)(OH)H-(OCH2-CHOH-CH3)M) are prepd from phosphorous and acetic acids at 75-130 deg.C with subsequent addn of aliphatic or aromatic di:carboxylic-acid anhydrides opt. dissolved...

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Main Authors GROSZ,MIKLOS,HU, BUDAI,ZSUZSANNA,HU, BOZOKI,GABOR,HU, TELEGDI,LASZLONE,HU, KALMAN,ERIKA,HU, TARLOS,EVA,HU, KETHELYNE BELLA,ERZSEBET,HU, OETVOES,LASZLO,HU, KRAJCSOVICS,FERENC,HU, BAKTAY,GYOERGY,HU
Format Patent
LanguageEnglish
Published 28.04.1989
Edition4
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:Poly-hydroxy-phosphomium acids of formula: R,c(CPO3H2) 2-0H-(PO2H-C(PO3H)(R,)-O)n-R, half-ester dervis, and R2-N (C-(R3)2-P(O)(OH)H-(OCH2-CHOH-CH3)M) are prepd from phosphorous and acetic acids at 75-130 deg.C with subsequent addn of aliphatic or aromatic di:carboxylic-acid anhydrides opt. dissolved in aq. alkaki. - Partial esters are prepd with epichloro-hydria; conversely zinc-chloride and aliphatic mono-di-or tri-amines are added at room temp. to phosphorous acid, followed by addn of carbonyl cpds pref. parafasmaldehyde and by heating to 90-110 deg.C. Finally, epichlorohydrin is added after further agitation. Cpds of above description are used as water-hardness scale and common inhibitors. - R,B,H,CH3CO,HOOC-CH=CH-CO, HOOC-CH2-CH2-CO or C6H4(COOH)CO Gps; R,=an alhyl or alkenyl gp. 22=-C(R3)2-P(O)(OH)-(O-CH2CHOH-CH3), CH3-CHOH-CH2-O-P-(O)(OH)- C(R3)2-NH-(CH2)m, CH3-CHOH-CH2-O-P(O)(OH)-C (R3)2- NH-CH2-CH2-N(C-(R3)2-P(O)(OH) -O-CH2-CHOHCH3/CH2-CH3 gps; R3 hydrogen atom, alhyl or eyrl gp; n=1-6; and m=1-3.
Bibliography:Application Number: HU19860003972