The intermolecular reductive radical coupling of aldehydes with nonactivated alkenes, employing metal hydride atom transfer (MHAT) catalysis with a combination of FeII and FeIII salts, is described. This constitutes the first use of aldehydes as viable acceptor groups in MHAT reactions. The insights gained in this study led to the reexamination of the previously reported intramolecular version of the
Synthesis of Acyclic α,β-Unsaturated Ketones via Pd(II)-Catalyzed Intermolecular Reaction of Alkynamides and Alkenes
作者:Norie Momiyama、Matthew W. Kanan、David R. Liu
DOI:10.1021/ja068886f
日期:2007.2.1
terminal alkenes to synthesize E-α,β-unsaturated ketones under very mild conditions using catalytic Pd(II) and an oxidant. An 17O isotope labeling experiment implicates a cyclic oxypalladation intermediate in this reaction.
The invention relates to new and known compounds as well as methods for preventing the attachment of aquatic organisms to surfaces which are submerged for extensive periods of time in water. More particularly, this invention relates to the protection of submerged surfaces with new alkylamine derivatives as antifouling agents. The invention is beneficiary for the environment in that it will permit the use of copper- and tin-free paints.
[EN] POLYAMIDES FUNCTIONALIZED WITH CHAINS CONTAINING THIOL FUNCTIONS<br/>[FR] POLYAMIDES FONCTIONNALISÉS AVEC DES CHAÎNES CONTENANT DES FONCTIONS THIOL
申请人:[en]CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
公开号:WO2024002457A1
公开(公告)日:2024-01-04
A polyamide comprising monomer units containing at least one elementary unit according to formula (I), wherein R1is a linear alkyl containing 1 to 6 carbon atoms; and wherein R2is an aliphatic chain containing 1 to 30 carbon atoms selected among one of the followings: an alkyl chain, an alkenyl chain, an alkynyl chain, eventually containing at least one of the following atoms or groups: O; N; S; -CO-; -CO-O-; -CO- N-; -CO-S-; carbonate; carbamate; urea; phosphate; phosphonate; sulfoxide; sulfone; cycloalkyl; aryl and heteroaryl; the cycloalkyl, aryl and heteroaryl being eventually substituted by one of the following: alkyl; hydroxy; hydroxyalkyl; alkyloxy; halogen; cyano; -SH; nitro; thioalkyl and alkylthio.