Abstract: Copper (I) formate complexes of general formula LnCu(HCOO).x COOH are decomposed in order to separate metallic copper, wherein x is a number from 0 to 10, n amounts to, 2, 3 or 4 and the n ligands L represent, independent of one another, one of the following ligands: a phosphane of formula R1R2R3P; a phosphite of formula (R1O)(R2O)(R3O)P; an isocyanide of formula R1—NC; an alkene of general formula R1R2C?CR3R4; or an alkyne of general formula R1C?CR2; wherein R1, R2, R3 and R4 represent, independent of one another, hydrogen, a linear or branched, optionally partly or fully fluorinated alkyl, aminoalkyl, alkyoxialkyl, hydroxialkyl, phosphinoalkyl or aryl radical having up to 20 carbon atoms, with the exception of triphenylphosphino-copper (I) formate and 1,1,1-tris(diphenylphosphinomethyl)ethane-copper (I) formate.

Abstract: A method for synthesis of losartan 5-carboxylic acid (EXP-3174).

Abstract: Copper(I) formate complexes of the formula LnCu(HCOO).x HCOOH, where x is from 0 to 10, n is 1, 2, 3 or 4 and the n ligands L, independently of one another, are each one of the following ligands: a phosphane of the formula R1R2R3P; a phosphite of the formula (R1O)(R2O)(R3O)P; an isocyanide of the formula R1—NC; an alkene of the formula R1R2C?CR3R4; or an alkyne of the formula R1C?CR2; where R1, R2, R3 and R4, independently of one another, are hydrogen, a linear or branched, optionally partly or completely fluorinated alkyl, aminoalkyl, alkoxyalkyl, hydroxyalkyl, phosphinoalkyl or aryl radical of one to 20 carbon atoms; with the exception of triphenylphosphinocopper(I) formate and 1,1,1-tris(diphenyl-phosphinomethyl)ethanecopper(I) formate; are decomposed for depositing metallic copper.