Abstract: The present invention relates to novel benzo(b) bicyclo[3.3.1]nones of the general formula I: ##STR1## and a salt or nitrogen oxide thereof, in which R.sub.1 and R.sub.2 stand for hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 1-6 carbon atoms, an optionally substituted aralkyl group or an acyl group orR.sub.1 and R.sub.2 together with the nitrogen atom represent a heterocyclic 5- or 6-membered ringR.sub.3 is a free, etherified or esterified hydroxy,X and Y stand for hydrogen, hydroxy, halogen, alkyl or alkoxy of 1-6 C-atoms, nitro, CF.sub.3 or an acyloxy group, having valuable biological activities, particularly anorectic activity.

Abstract: This invention relates to a method of producing a dibenzocycloheptene compound of the structure ##STR1## in high yields which comprises: (a) hydrogenating an anthracene derivative in the 9,10 position to form a 9,10-dihydroanthracene derivative, (b) selectively mono-carbonylating one of the hydrogens in the 9,10 position to form a monoaldehyde, (c) reducing the aldehyde to form the corresponding alcohol and (d) dehydrating and expanding the center ring to form the dibenzocycloheptene compound.

Abstract: The active constituents of these medicaments are compounds of the general formula: ##STR1## in which R represents a sulfur or oxygen atom or a >SO or >SO.sub.2 radical or even a ##STR2## IN WHICH R.sub.1 and R.sub.2 which can be the same or different, represent a hydrogen atom or a hydroxyl, aryl, alkyl, arylalkyl, alkylaryl possibly halogenated or a heterocyclic radical, said radicals being substituted or unsubstituted, while R' and R", which may be the same or different, represent a hydrogen atom, a metal such as an alkali or alkaline-earth metal or magnesium, or the ammonium ion or an alkyl radical, an aliphatic or aromatic acyl radical or a heterocyclic radical, which radicals may be substituted or unsubstituted. The process enables the products to be prepared in sufficiently pure form for therapeutic use. .beta.-naphthol is reacted with a suitable aldehyde in an acetic medium, in the presence of hydrochloric acid added dropwise at between 5.degree. and 10.degree. C.

Abstract: Disclosed herein is an improved process for preparing an addition product of the reaction of a polyhydric compound and dicyclopentadiene, using a molar ratio of polyhydric compound to dicyclopentadiene of from about 1:4 to about 2:1, in the presence of an acid catalyst wherein the product comprises a hydroxyhydrocarbyl dihydrodicyclopentadiene represented by the formula ##STR1## and wherein R is a divalent radical of 2 to 20 carbon atoms selected from the group consisting of saturated radicals, aromatic radicals and combinations thereof, the improvement comprising employing as the acid catalyst a crosslinked cation exchange resin having acid functionality.

Abstract: Carbon-carbon coupled self-condensation products obtained by the oxidative coupling of phenols and naphthols are prepared by contacting an aqueous mixture of phenol or naphthol with oxygen in the presence of sufficient alkaline material to sustain a pH in the range of 8.5-9.5 during the oxidative coupling reaction and a catalyst system comprising a copper, cobalt, nickel, iron, chromium, cerium, or manganese chelate of a polyimino acid containing more than two nitrogen atoms.