Abstract: Improvement in the process for preparing biaryl compounds via coupling of an arylamine with an arene in the presence of a nitrite, an acid and copper metal or a derivative thereof; the improvement is consisting in adding to the reaction mixture a trialkylorthoformate. The process may be used for preparing drugs such as Flurbiprofen and Xenbucin or intermediate compounds particularly useful for preparing Flurbiprofen, Flufenisal, Chlordimorin, Xenbucin, Xenysalate, Xenyhexenic acid and the like.

Abstract: Process industrially and economically useful for preparing difunctional aliphatic organic compounds of formulaX-(CH.sub.2).sub.n -Yin which n=6,7, X=--COOH, --COOR, Y=--CN, --COOH, --CONH.sub.2, --CH.sub.2 --NH.sub.2 --COOR wherein R is a linear or branched alkyl containing 1-6 carbon atoms.The process starts from a ketone of the formula ##STR1## in which n=2,3 and R.sub.1 =--CN, --COOH. The ketone (I) is changed to the corresponding hydroperoxide by means of H.sub.2 O.sub.2, the hydroperoxide is catalytically split by means of a catalyst Fe.sup.++ /Cu.sup.++ to give an unsaturated acid of the formulaHOOC--(CH.sub.2).sub.3 --CH.dbd.CH--(CH.sub.2).sub.2 -R.sub.1and this is catalytically hydrogenated to the compoundHOOC--(CH.sub.2).sub.n -R.sub.1When R.sub.1 is different from Y, R.sub.1 is changed to Y through known methods.

Abstract: This invention consists of a process for preparing bifunctional aliphatic organic compounds of at least 6 carbon atoms, wherein a cycloaliphatic oxyhydroperoxide is reacted with an alpha-olefine having its double bond activated by a conjugate electron-attracting group, in the presence of a bivalent Cr salt, a bivalent V salt or a trivalent Ti salt.