Ozonisation

Ozone is normally produced by the use of a silent electrical discharge and a number of ozonisers have been produced. Brodie s apparatus is shown in outline in Figure 10.2. 

VI,14. OXIDATION OF UNSATURATED COMPOUNDS WITH OZONISED OXYGEN (OZONOLYSIS)... 

A simple semimicro laboratory ozoniser is illustrated in Fig. VI, 14, 2 this gives reasonably satisfactory results for small quantities of organic... 

Organic peroxides are highly explosive, hence it is best to carry out the ozonisation in a solvent which dissolves both the original compound and the ozonide. 

Dissolve 7 g. of pure oleic acid in 30 ml. of dry ethyl chloride (chloroform may be used but is less satisfactory), and ozonise at about —30°. Remove the solvent under reduced pressure, dissolve the residue in 50 ml. of dry methyl alcohol and hydrogenate as for adipic dialdehyde in the presence of 0 5 g. of palladium - calcium carbonate. Warm the resulting solution for 30 minutes with a slight excess of semicarbazide acetate and pour into water. Collect the precipitated semicarbazones and dry the... 

A synthesis of possible biological significance was effected by Spath and Berger, who ozonised eugenol methyl ether to 3 4-dimethoxyphenyl-acetaldehyde (Villa), which was then condensed with 3 4-dimethoxy-phenylethylamine (Vlllb), and the resulting Schiff s base (IX) treated wit hot 19 per cent, hydrochloric acid, whereby it was transformed into... 

Harries and Comberg have also supplied much evidence, which, taken with the above-mentioned researches, places the chemical isomerism of citronellol and rhodinol practically beyond dispute. By ozonisation experiments decomposition products were obtained, which proved that natural citronellal, obtained from citronella oil, is a mixture of about... 

Ozongehalt, m. ozone content, ozonhaltig, a. containing ozone, ozoniferous, Ozonisator, Ozoniseur, m. ozonizer. ozonisieren, v.t. ozonize. 

With benzene and aromatic hydrocarbons in general On particular phenylamine), the triozonide formed is insoluble and forms a very unstable gel. There was a violent detonation during the ozonisation of rubber dissolved in benzene. A gelatinous precipitate formed just before the detonation of this reaction. 

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