PATENTS

      1478.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Producing Oxygen-Containing Organic Compounds.]  German Patent Appl. I 75,412. OZ 14,275. filed July 1, 1943 (Cl. IV d-12 o).  FIAT Reel 170, frames 9,204-9,205: PB 64,185.

            In producing oxygenated organic compounds by the conversion of compounds containing at least 1 olefinic double bond and in presence of catalysts containing O with H₂O₂ or with compounds yielding this under the conversion conditions, the reaction is carried out in an acid medium.  Example: Into 100 parts of a 0.5% aqueous solution of Os tetroxide, with a pH concentration of 3-4, is stirred at 30º a mixture of 720 parts of a 70% aqueous solution of allyl alcohol and 870 parts of a 36% aqueous solution of H₂O₂, the pH being maintained at 3.5-3.75 by simultaneous addition of an aqueous KOH solution.  The conversion begins at once and occurs rapidly yielding, after the usual workup, 90% of the calculated amount of glycerin.  At pH concentrations > or <3-4, the yields fall greatly.