Abstract:
Disclosed are a type of conjugated triene compounds (1), and a preparation and application thereof. In this method, a 2-(cyclohexenylidene)malonic acid derivative is sequentially subjected to isomerization, halogenation reaction in the presence of a halogenating agent and dehydrohalogenation to prepare the conjugated triene compounds (1). This disclosure further provides a method of preparing a 2-aryl malonic acid derivative from the conjugated triene compounds (1) through aromatization reaction. This disclosure has the following advantages:(1) the present disclosure provides a novel conjugated triene compound (1) and a preparation method thereof; and (2) such a novel compound with multifunctional groups can be used to synthesize other compounds of importance through a further functional group conversion reaction.
Abstract:
The present invention refers to processes for catalytic reversible alkene-nitrile interconversion through controllable HCN-free transfer hydrocyanation.
Abstract:
in the form of any one of its stereoisomers or a mixture thereof, and wherein R1 and R1′, independently from each other, represent a hydrogen atom or a methyl group provided that one of said groups represent a hydrogen atom and the other a methyl group; R2 and R3, independently from each other, represent substituents of the saturated ring and are a hydrogen atom or a C1-3 alkyl group; and n is an integer varying between 1 and 4; and their use in perfumery to impart odor notes of the floral, rosy type.
Abstract:
The present invention refers to processes for catalytic reversible alkene-nitrile interconversion through controllable HCN-free transfer hydrocyanation.
Abstract:
An ester compound represented by formula (1): wherein R 1 represents R 1 represents 2-propenyl or 2-propynyl; R 3 represents hydrogen or methyl, R 4 represents hydrogen or C1-C4 alkyl, and R 5 represents hydrogen or C1-C4 alkyl; has an excellent pest control effect and is therefore useful as an active ingredient of a pest control agent.