Abstract: A process for synthesis of 1-(aminomethyl)cyclohexane acetic acid hydrochloride (Gabapentin hydrochloride) comprising: a) Reaction of a mixture of acetic anhydride/ammonium acetate with 1,1-cyclohexane-diacetic acid to yield 3,3-pentamethylene glutarimide; b) Treatment of 3,3-pentamethylene glutarimide with sodium hydroxide in an aqueous solution up to dissolution, dripping the solution thus obtained into a sodium hydroxide/sodium hypochlorite mixture, which is also aqueous, followed by acidification with hydrochloric acid to yield gabapentine hydrochloride.

Abstract: A process for synthesis of 1-(aminomethyl)cyclohexane acetic acid hydrochloride (Gabapentin hydrochloride) comprising:

Abstract: Process for the preparation of ipriflavone consisting in the following steps:a) reaction of 2,4-dihydroxy-phenyl-benzyl-ketone of formula (II) with ethyl orthoformate in dimethylformamide as solvent and in the presence of a catalyst consisting of morpholine, to yield 7-hydroxyisoflavone of formula (III),b) separation of product (III) from the reaction residue,c) alkylation of product (III) from step b) with isopropyl halide to obtain ipriflavone, wherein:I. step a) is carried out at a temperature ranging from 115 to 120.degree. C. using a 2,4-dihydroxy-phenyl-benzyl-ketone (II) weight/solvent volume (w/v) ratio lower than 1:4;II. step b) consists in the precipitation of the corresponding salt with dicyclohexylamine of formula (IV).The process yields 7-hydroxyisoflavone (III) in high yields within short reaction times (2 h max.) and ipriflavone with impurity .ltoreq.0.1%.

Abstract: Process for the preparation of derivatives having general formula (I) ##STR1## wherein the meaning of R will be defined in the text, characterized by the reaction between a compound having formula ##STR2## wherein X is an halogen, and an alkaline salt of a methyl dialkylmalonate.