NOVEL ALKANETHIOIC ACID DERIVATIVE AND PERFUME COMPOSITION CONTAINING THE SAME
申请人:T. HASEGAWA CO., LTD.
公开号:US20200290958A1
公开(公告)日:2020-09-17
An alkanethioic acid derivative capable of imparting a characteristic aroma or flavor to fragrances and cosmetics, and foods and beverages; and a perfume composition comprising the alkanethioic acid derivative as an active ingredient. S-alkyl 5-[(1-alkoxy)ethoxy]alkanethioate represented by formula (1), and a perfume composition comprising the S-alkyl 5-[(1-alkoxy)ethoxy]alkanethioate represented by formula (1) as an active ingredient. In the formula (1), R
1
represents an alkyl group having 1 to 9 carbon atoms, R2 represents an alkyl group having 2 to 4 carbon atoms, and R3 represents a methyl group or an ethyl group.
The present invention provides a fragrance precursor of formula I:
1
that is capable of forming a fragrant ketone of formula II:
2
and a fragrant lactone of formula III:
3
Synthesis and aggregation behaviour of single-chain, 1,32-alkyl branched bis(phosphocholines): effect of lateral chain length
作者:K. Gruhle、S. Müller、A. Meister、S. Drescher
DOI:10.1039/c8ob00424b
日期:——
Three novel single-chain bis(phosphocholines) bearing two lateral alkyl chains of variable length next to the headgroup have been synthesized as model lipids for naturally occurring archaeal membrane lipids. The synthesis was realized using the Cu-catalyzed Grignard bis-coupling reaction of a primary bromide as a side part and a 1,ω-dibromide as a centre part. We could show that the aggregation behaviour
CHEMICAL AND BIOLOGICAL AGENTS FOR THE CONTROL OF MOLLUSCS
申请人:Asolkar Ratnakar
公开号:US20100266717A1
公开(公告)日:2010-10-21
Compositions and methods for controlling molluscs, members of the Gastropoda and Bivalvia classes which includes but is not limited to lactones, lactams, carbamates, amides, and/or carboxylic acid containing compounds as active ingredients and/or compounds derived from
Pseudomonas
and/or
Erwinia
. Also provided are methods and compositions for increasing the efficacy of chemical and biological control for invasive molluscs in open waters, power plants, and drinking water treatment facilities under coldwater conditions.
Furanyl cyclic amines: a diastereoselective synthesis of 2,6-syn-disubstituted piperidines under thermodynamic control
作者:Matthew O'Brien、Andrew Leach、Roly J. Armstrong、Keting Chong、Ross Sheridan
DOI:10.1039/c2ob07008a
日期:——
Utilising the propensity of the 2-furanyl group to facilitate equilibration of an adjacent tosylamide chiral centre, a diastereoselective route to 2,6-syn-piperidines was developed that proceeds with high levels of thermodynamic stereocontrol. X-ray crystallography structures suggest that, as seen in similar systems, pseudo-allylic strain between the N-tosyl group and the substituents at the 2 and 6 positions dominates stereochemical preference, overriding 1,3 diaxial interactions.