| http://www.w3.org/ns/prov#value | - The novel compounds of the formula ##STR8## are prepared by contacting a compound of the formula ##STR9## wherein X is chlorine, bromine or iodine, with about an equimolar amount of a polyoxyalkylene compound (from the corresponding polyalkylene glycol) of the formula ##STR10## wherein m, b and R1 -R6 are as defined above and M is an alkali metal, for example, sodium or potassium.
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