(2-CARBOXY-3-HYDROXY-PROPYL)-IMINODIACETIC ACID AND DERIVATIVES

PCT No. PCT/EP94/01561 Sec. 371 Date Feb. 29, 1996 Sec. 102(e) Date Feb. 29, 1996 PCT Filed May 11, 1994 PCT Pub. No. WO94/26691 PCT Pub. Date Nov. 24, 1994The present invention relates to compounds of the formula 1 (I) wherein R1 is selected from hydrogen and -R4-R5where R4 is selected from nothing C1-C20 linear or branched alkylene C3-C20 cycloalkylene, C6-C20 arylene, C7-C20 alkarylene and C7-C20 arlkylene; and R5 is one of hydrogen, hydroxy, -CO2Z, phenyl hydroxyphenyl pyridyl, nitrophenyl, furyl, and thienyl; R2 and R3 are independently selected from a group of the formula -R4-R6; where R4 is as defined above and R6 is one of hydrogen, hydroxy -CO2Z. -CH(CO2Z)-CH2-CO2Z and NR7R8; where R7and R8are independently selected from a group of the formula: -(CH2)k-Rg: where k=0-20 and Rgis one of hydrogen, hydroxy, -CO2Z. and -CH(CO2Z)-CH2-CO2Z: wherein Y is selected from -CO2Z. -SO3Z and -C=N: and wherein each Z is independently selected from hydrogen, alkali metal, ammoniumr and substituted ammonium, to processes for making these compounds, and to the use of these compounds in a variety of applications involving chelating or sequestration.