In tandem reactions, cyclopropylcarbinols are obtained from allyloxylithium or -magnesium intermediates, generated in situ by alkylation of conjugated aldehydes, ketones, and esters as well as from allyl carboxylates or vinyloxiranes. Using this methodology, numerous fragrance ingredients and their precursors were efficiently converted to the corresponding cyclopropylcarbinols.
ALKYL-SUBSTITUTED TETRAHYDROPYRANS AS FLAVORING SUBSTANCES
申请人:Oertling Heiko
公开号:US20100226864A1
公开(公告)日:2010-09-09
The present invention relates to alkyl-substituted tetrahydropyrans, mixtures containing these alkyl-substituted tetrahydropyrans, their respective use and corresponding flavored products.
from α-substituted (homo)allyl alcohols. In tandem reactions, cyclopropyl carbinols are obtained from allyloxylithium or -magnesium intermediates, generated in situ by alkylation of conjugated aldehydes, ketones, and esters as well as from allyl esters and carbonates or vinyloxiranes. [¹] cyclopropanation - Barbier conditions - Grignard addition - alkyllithiumaddition - dibromomethane
LOW MOLECULAR WEIGHT MODULATORS OF THE COLD MENTHOL RECEPTOR TRPM8 AND USE THEREOF
申请人:BASF SE
公开号:US20170265510A1
公开(公告)日:2017-09-21
The invention relates to new types of modulators of the cold menthol receptor TRPM8, to methods of modulating the TRPM8 receptor using these modulators; and in particular the use of the modulators for inducing a sensation of coldness; and also the articles and compositions produced using these modulators.