Dehydrogenative β-Arylation of Saturated Aldehydes Using Transient Directing Groups
摘要:
An unprecedented cross-dehydrogenative-coupling (CDC) reaction of saturated aldehyde beta-C-H with arenes to form cinnamaldehydes via the cleavages of four C-H bonds has been developed. The reaction possesses complete E-stereoselectivity for the C = C double bond. The protocol is featured by atom and step economy, mild reaction conditions, and convenient operation.
[EN] COMPOSITION FOR INHIBITING FEEDING OF WEEVILS<br/>[FR] COMPOSITION POUR EMPECHER DES CHARANÇONS DE S'ALIMENTER
申请人:FORSKARPATENT I SYD
公开号:WO2002000022A1
公开(公告)日:2002-01-03
The present invention relates to a Composition containing a gnawing inhibiting compound and intended to be applied on conifer saplings, in particular pine saplings, to prevent weevil to attack the young stem, wherein the gnawing inhibiting compound is present in a bound form to a substance of the group of zeolites, cyclodextrines, homogenous porous microspheres, spherical vesicles, hollow fibres, such as textile fibres (wool) capillaries of synthetic material (polymers), starch, and polymer films, optionally in combination with a carrier, whereby the gnawing inhibiting compound is present in an amount of 1 to 10 % by weight, as well as gnawing inhibiting compounds.
[EN] COMPOSITION FOR INHIBITING GNAWING AND FEEDING BY INSECTS AND ANIMALS INTENDED TO BE APPLIED ON SEEDLINGS AND TREES<br/>[FR] COMPOSITION DESTINEE A ETRE APPLIQUEE SUR DES SEMIS ET DES ARBRES PERMETTANT D'EMPECHER QUE DES INSECTES OU DES ANIMAUX RONGENT OU SE NOURRISSENT DESDITS SEMIS ET ARBRES
申请人:FORSKARPATENT I SYD AB
公开号:WO2004002224A1
公开(公告)日:2004-01-08
The invention relates to a composition for inhibiting gnawing and feeding by insects and animals intended to be applied on seedlings and trees comprising a corrosion inhibiting composition of the type containing wax and/or bitumen dissolved in a petroleum base or in a water soluble base, optionally, in combination with an antifeedant compound in a bound form, and the use thereof.
Dehydrogenative β-Arylation of Saturated Aldehydes Using Transient Directing Groups
作者:Xing-Long Zhang、Gao-Fei Pan、Xue-Qing Zhu、Rui-Li Guo、Ya-Ru Gao、Yong-Qiang Wang
DOI:10.1021/acs.orglett.9b00695
日期:2019.4.19
An unprecedented cross-dehydrogenative-coupling (CDC) reaction of saturated aldehyde beta-C-H with arenes to form cinnamaldehydes via the cleavages of four C-H bonds has been developed. The reaction possesses complete E-stereoselectivity for the C = C double bond. The protocol is featured by atom and step economy, mild reaction conditions, and convenient operation.