Patent ID: 6727393
Filing Date: 2004-04-27
Classification: C07C

Abstract:
A process for the preparation of organic solutions comprisingA) mixing (a) an aqueous solution of a hydroxide Mr+(OHâˆ’)r, (b) at least one salt conforming to (Qn+)m[Ymâˆ’]n, (c) R1â€”(OH)k and (d) at least one solvent that is not completely miscible with water to obtain a material system that contains an aqueous phase and an organic phase, the organic phase containing (Qn+)k[(âˆ’O)kâ€”R1]n and optionally R1(OH)k and/or (Qn+)m[Ymâˆ’]n, and B) separating the aqueous phase from the organic phase, where Qn+ denotes hexaalkyl guanidinium ion or (XRo+), where X is an atom selected from the group consisting of elements of group Va and VIa of the Periodic Table of the Elements, o is a whole number of 1 to 4, R is C1-C18 alkyl, C1-C18-cycloalkyl, C7-C18 aralkyl, C6-C18 aryl and any two radicals R may be replaced by a ring, and n and m independently one of the other denote natural numbers, Ymâˆ’ is at least one member selected from the group consisting of halide, nitrate, sulfate, hydrogen sulfate, phosphate, hydrogen phosphate, dihydrogen phosphate, perchlorate, hydrogen carbonate and carbonate ion, and R1 denotes an aromatic radical and k is a whole number of 0 to 4, and wherein the solvent is inert with respect to the reactive components of said material system, and Mr+(OHâˆ’)r is at least one hydroxide of elements selected from groups Ia and IIa of the Periodic Table of the Elements and r is 1 or 2.