. Annual report on essential oils, synthetic perfumes, &c. Essences and essential oils; Perfumes. CH2 CH CH< (III) First reaction product of the polymerisation. CH, CH5. (V) Biscarvon. in the hydroxyl group, and further that bis-1:3-methylc?/c/,ohexenone has a double bond in its molecule. These facts, as well as the observation, common in the case of a:/5-unsaturated ketones, that additive combinations with reactfve methylene are not taking place in the carbonyl group, but at the double bond of carbon atoms, led Ruzicka to the conclusion that the first reaction-product to be considered
. Annual report on essential oils, synthetic perfumes, &c. Essences and essential oils; Perfumes. CH2 CH CH< (III) First reaction product of the polymerisation. CH, CH5. (V) Biscarvon. in the hydroxyl group, and further that bis-1:3-methylc?/c/,ohexenone has a double bond in its molecule. These facts, as well as the observation, common in the case of a:/5-unsaturated ketones, that additive combinations with reactfve methylene are not taking place in the carbonyl group, but at the double bond of carbon atoms, led Ruzicka to the conclusion that the first reaction-product to be considered in the polymerisation of ci/dohexenones is a diketone of the formula (III). The further course of the poly- merisation is indicated by the additive compound between acetic ester and c^/c/ohexenone, as explained by Rabe and his collaborators3).1 Analogous to these processes studied by Rabe there are, in the just-mentioned primary additive products (III), two possibilities •) Berl. Berichte 32 (1899), 423. 2) Helvet. chim. acta 3 (1920), 781. — 3) Report October 1904, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Schimmel & Co. Miltitz bei Leipzig : Schimmel & Co.
Size: 2724px × 917px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubject, booksubjectperfumes