- PERFUME SYSTEMS
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The present application relates to perfume raw materials, perfume delivery systems and consumer products comprising such perfume raw materials and/or such perfume delivery systems, as well as processes for making and using such perfume raw materials, perfume delivery systems and consumer products. Such perfume raw materials and compositions, including the delivery systems, disclosed herein expand the perfume communities' options as such perfume raw materials can provide variations on character and such compositions can provide desired odor profiles.
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Page/Page column 60; 61; 62
(2015/12/08)
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- Synthesis and olfactory characterization of sila-methyl pamplemousse and related odorants with a 2,2,5-Trimethyl-2-silahex-4-ene Skeleton
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The synthetic grapefruit odorant methyl pamplemousse (1a) has lately become an important trend odorant, and the related 2,2,5-trimethylhex-4-enes 2a-4a also possess interesting olfactory properties of fresh hesperidic and fruity-agrestic character. On the basis of the carbon/silicon switch strategy, the silicon-containing analogues sila-methyl pamplemousse (1b) and 2b-4b were synthesized and studied for their olfactory properties (olfactory evaluation of the C/Si pairs 1a/1b-4a/4b). Sila substitution (C/Si exchange) was demonstrated to affect the olfactory properties substantially. The C/Si analogues 1a and 1b were found to be genuine grapefruit odorants, with the silicon compound 1b showing additional agrestic facets. As a proof of principle, it was demonstrated that C/Si analogues can display a different mechanism and rate of degradation (degradation studies with 1a and 1b under acidic conditions).
- Friedrich, Julian,Doerrich, Steffen,Berkefeld, Andre,Kraft, Philip,Tacke, Reinhold
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p. 796 - 803
(2014/03/21)
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