Abstract: A process for the preparation of indoline without substantial formation of indole, comprises passing 2-(2-aminophenyl)ethanol, in a vapor phase and admixed with a carrier gas, at a temperature of from about 240.degree. to about 260.degree. C. over at least a catalytic amount of a metal silicate or aluminosilicate containing alkaline earth metal or rare earth metal ions. The carrier gas can be water in the form of steam. The passage of 2-(2-aminophenyl)ethanol over the catalyst can be periodically terminated and the catalyst reactivatd by passing a mixture of air and nitrogen over the catalyst at a temperature of from about 300.degree. to about 550.degree. C., after which the passage of 2-(2-aminophenyl)ethanol and carrier gas can be resumed.

Abstract: An improvement in the production of .beta.-chloroethyltrichlorosilane by reacting hydrogen chloride with vinyl trichlorosilane in the presence of aluminum chloride at elevated pressure at temperatures between 0.degree. and 90.degree. C is disclosed, which comprises using the aluminium chloride which remains in the reaction vessel after separating off the .beta.-chloroethyltrichlorosilane, and which still contains .beta.-chloroethyltrichlorosilane, directly for the next reaction.

Abstract: Preparation of 1-isopropyl-3-hydroxy-5-chloro-1,2,4-triazole by reacting isopropylhydrazine hydrochloride with N-chlorocarbonylisocyanidedichloride.

Abstract: A process for the manufacture of .beta.-chloroethyl-methyl-dichlorosilane by addition of HCl to methylvinyl-dichlorosilane in the presence of AlCl.sub.3 and distilling off the resultant end product from the reaction mixture, wherein the isolation of the .beta.-chloroethyl-methyl-dichlorosilane by distillation is effected in the presence of at least 1 mole of alkali metal chloride or of ammonium chloride, relative to AlCl.sub.3, at a bath temperature above 30.degree.C in vacuo.