The present invention concerns the use of a furfural derivative of formula (I)
in which R represents (i) a —CH═CR′
1
—COR
1
group, a group
a group
a group
or a —CHO and R′ represents a hydrogen atom or a (C
1
-C
4
)alkyl group, as a chemical vehicle, as a solvent, co-solvent, coalescing agent, crystallization inhibitor, plasticising agent, degreasing agent, etchant, cleaning agent or agent for increasing biological activity, and more particularly as a solvent.
It also concerns phytosanitary formulations or resin-solubilising formulations comprising at least one such furfural derivative of formula (I).
[EN] CARBONYL CONTAINING COMPOUNDS FOR CONTROLLING AND REPELLING CIMICIDAE POPULATIONS<br/>[FR] COMPOSÉS CONTENANT UN CARBONYLE POUR MAÎTRISER ET REPOUSSER DES POPULATIONS DE CIMICIDAE
申请人:SEMIOSBIO TECHNOLOGIES INC
公开号:WO2012129702A1
公开(公告)日:2012-10-04
Compositions and methods for controlling and/or repelling bedbugs are provided. The compositions comprise one or more compounds having bedbug repellant activity. Such compounds may be, for example, naturally occurring semiochemicals or structural or functional analogs of naturally occurring semiochemicals. Exemplary compounds are compounds of general formula (I).
Cobalt-Catalyzed Enantiospecific Dynamic Kinetic Cross-Electrophile Vinylation of Allylic Alcohols with Vinyl Triflates
作者:Wei-Yuan Ma、Guan-Yu Han、Shaolin Kang、Xiaobo Pang、Xue-Yuan Liu、Xing-Zhong Shu
DOI:10.1021/jacs.1c08695
日期:2021.10.6
unknown. Herein, we report a cobalt-catalyzed enantiospecific vinylation reaction of allylicalcohol with vinyl triflates. This work establishes a new method for the synthesis of enantioenriched 1,4-dienes. The reaction proceeds through a dynamic kinetic coupling approach, which not only allows for direct functionalization of allylicalcohols but also is essential to achieve high chemoselectivity. The
Cyclodimerization of<i>α</i>,<i>β</i>-Unsaturated Ketones Catalyzed by Lanthanoid Tri-2-propoxides
作者:Tamon Okano、Katsutoshi Ohno、Jitsuo Kiji
DOI:10.1246/cl.1996.1041
日期:1996.12
α,β-Unsaturated ketones are cyclodimerized by the catalysis of lanthanoid tri-2-propoxides into substituted cyclohexanones in good yields. The catalytic activity of the lanthanoids is fairly superior to those of the sodium or aluminum propoxides.
On the Ring-opening Reactions of the Furan Compounds. III. On the Condensation of Furfural with Methyl Ethyl Ketone by Alkali
作者:Hiroshi Midorikawa
DOI:10.1246/bcsj.26.460
日期:1953.8
furfural can react with methylethylketone in two ways by alkali. In the condensation at 0∼3°, the main product was 4-(2-furyl)-3-methyl-4-butanol-2-one. This aldol was easily dehydrated to 4-(2-furyl)-3-methyl-3-buten-2-one, which was oxidised to α-methyl-2-furanacrylic acid by sodium hypochlorite. In the condensation at 60∼3°, the main product was the furfurylidene ketone, which gave the semicabazone