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New in Synthetic (page 3 of 4)
Jan 02, 2007 | 09:11 AM CST
By: Steve Pringle and David Brassington, Oxford Ch…
New materials and emerging applications. Physiological cooling agents act in a number of ways. In a flavor or fragrance they can be the first impact, leaving a cool sensation on the palate or skin prior to the main aroma being imparted.
Dec 29, 2006 | 03:22 PM CST
By: Jerzy Bajgrowicz and Antoine Gaillard, Givauda…
The growing scarcity—and resulting increased price—of sandalwood oil explains the fragrance industry’s continuous search for synthetic substitutes. Javanol (Givaudan), prepared from naturally occurring α-pinene, represents a new tool in terms of performance and naturalness of scent. Here we learn the importance of sandalwood for perfumery, its synthetic substitutes, the discovery and use of Javanol.
Oct 25, 2006 | 11:17 AM CDT
By: Michael Zviely (O'Laughlin Industries Ltd.)
A look at the two groups that comprise this section of heterocyclic chemicals, with a focus on the aromatic molecules. Of the ca. 20 million chemical compounds presently characterized, almost half are heterocyclic molecules. Heterocyclic molecules are significant due to their abundance in nature, as well as their chemical and biological importance.
Jun 06, 2006 | 03:29 PM CDT
By: Conrad Schmidt
In a recent article, I discussed the fundamentals of Schiff bases. In this issue, I would like to discuss the basics of esters.
Jun 06, 2006 | 07:43 AM CDT
Gliding silently across the canopy of a coastal rainforest in the Masoala Peninsula of northeastern Madagascar, Roman Kaiser knew he was on to something good. “Can you smell this unique scent of White Freesia and Robina — which tree might it be — we have to go closer,” Kaiser said to his ScentTrek teammate and Givaudan executive perfumer, Dave Apel.
Jun 01, 2006 | 07:06 AM CDT
By: Michael Britten-Kelly
Perfumers often use the descriptor “thujone” to describe a particular note in fragrances. However, the odor of thujone itself seems to be inseparable from the character of the essential oils in which it is found. This article will examine the uses of thujone and thujone containing materials in perfumery, and describe some synthetic materials — old and new— that are intended to provide this note.
May 30, 2006 | 02:01 PM CDT
By: Alvin Williams
Can you remember life before the rose ketones? Can you remember what rose reconstitutions used to smell like before the rose ketones were available? Probably not. And if you can, you probably weren’t too impressed with them
May 30, 2006 | 01:35 PM CDT
By: Conrad Schmidt
The flavor and fragrance industry uses many classes of chemicals, including a number that otherwise are encountered only rarely outside of organic chemistry textbooks. A good example is Schiff bases, named for their discoverer, German chemist Hugo Schiff (1834-1915). A Schiff base, along with by-product water, is formed by reaction of an aldehyde with a primary amine.
May 11, 2006 | 11:52 AM CDT
By: T.V. John, Carol Christensen and Julian Boyden
Fragrance is universally recognized for its aesthetic value. Providing a pleasant scent will always remain the primary role of fragrance in consumer products. Yet fragrance provides many other benefits to consumers and to the products to which they are added. Describing these additional fragrance benefits is the focus of this paper.
May 11, 2006 | 11:30 AM CDT
By: Libor Cerveny, Institute of Chemical Technolog…
A model for research and academic-industrial cooperation. Cooperation between the Department of Organic Technology (DOT) at ICT Prague and Aroma Co. began in 1970 with research into problems with benzyl-acetate purity. The cooperative first consisted of an expert consultancy, which gradually grew into a systematic expert-research group focused on fields of basic research.