Furanoterpene Synthesis via Intramolecular Nitrile Oxide Cycloaddition Reaction: A Total Synthesis of (+)-Menthofuran
摘要:
A fused furan assembling strategy based on an intramolecular [3+2] dipolar cycloaddition reaction of nitrile oxide has been applied to a total synthesis of perfumy furanomonoterpene (+)-menthofuran (1). The key cycloaddition substrates (9) and (1 2) are easily prepared via straightforward routes starting from (+)-citronellal and these are treated with sodium hypochlorite and p-chlorophenyl isocyanate, respectively. The cycloaddition reactions generate 10 : 1 mixture of diastereoisomeric isoxazolines (2a) and (2b) in good to excellent yields. The isoxazolines (2a,b) thus obtained are converted to (+)-menthofuran (1) by sequential reductive hydrolysis and alkaline hydrolysis (or vice versa) followed by acid treatment of the resulting beta,gamma-dihydroxy ketone (1 4).
FLAVOR MODULATOR HAVING PYRIDINE DERIVATIVE OR SALT THEREOF AS ACTIVE INGREDIENT
申请人:T. HASEGAWA CO., LTD.
公开号:US20180072670A1
公开(公告)日:2018-03-15
2-(phenylalkyloxyalkyl)pyridine derivative or a 2-(phenylalkylthioalkyl)pyridine derivative imparts, when added to food and drink or cosmetics as an active ingredient, a flavor of natural impression thereto; and in particular, when added to food and drink, the compound imparts an umami imparting or enhancing, a saltiness enhancing a sweetness enhancing, and in particular, when added to a milk or dairy product, a food or drink product containing a milk or dairy product, or a dairy replacement product, the compound provides a milk richness enhancing.
USE OF PHYSIOLOGICAL COOLING ACTIVE INGREDIENTS, AND AGENTS CONTAINING SUCH ACTIVE INGREDIENTS
申请人:Subkowski Thomas
公开号:US20120263659A1
公开(公告)日:2012-10-18
The invention relates to a TRPM8 modulator for achieving a cooling effect on the skin or a mucous membrane.
这项发明涉及一种TRPM8调节剂,用于在皮肤或粘膜上产生降温效果。
Compounds, Compositions and methods for insect control
申请人:DeLong Anthony Mitchell
公开号:US20050025795A1
公开(公告)日:2005-02-03
Rapidly acting compositions having vapor phase insecticidal activity comprise natural products or natural product-based materials. Further, these materials are non-petroleum based, are typically 100% biodegradable, and typically do not persist in the environment, unlike traditional pesticides. The compositions kill susceptible insects on contact in seconds, even the notoriously hardy
peripleneta
species. The compositions also kill insects behind cracks and crevices and when sprayed onto absorbent surfaces such as wood and plasterboard, where traditional contact insecticides work poorly or not at all. New methods of testing insecticides can be used to quantify these effects.
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.
Methods and compositions related to molecules and formulations comprising antibiofilm materials are provide, including new formulations of Deep Eutectic Solvents (DES) that are chemically related to choline geranate. Specifically, geranic acid (a component of choline geranate DES) is a molecule from the isoprenoid/terpene family of compounds. Other members of this family as DES components include isoprenoid acids and chemical derivatives thereof.