Palladium-catalyzed site-selective arylation of aliphatic ketones enabled by a transient ligand
作者:Lei Pan、Ke Yang、Guigen Li、Haibo Ge
DOI:10.1039/c8cc00980e
日期:——
Transition metal-catalyzed direct C–H bond functionalization enabled by transient ligands has become an attractive topic. Here we report a palladium-catalyzed site-selective arylation of β-C(sp3)–H bonds in aliphatic ketones with β-alanine as the transient ligand.
When benzylic and allylic alcohols were treated with enolacetate in the presence of a catalytic amount of a rhenium complex, ReBr(CO)5, the carbon-carbon bond formation of the alcohols and enolacetate smoothly proceeded to give the corresponding ketones and aldehyde in moderate to good yields. For the reaction of allylic alcohols, γ,δ-unsaturated carbonylcompounds were obtained in good yields. When
Palladium(II)-Catalyzed Conjugate Addition of Aromatics to<i>α</i>,<i>β</i>-Unsaturated Ketones and Aldehydes with Arylantimony Compounds
作者:Chan Sik Cho、Shin-ichi Motofusa、Kouichi Ohe、Sakae Uemura
DOI:10.1246/bcsj.69.2341
日期:1996.8
Triarylstibines react with α,β-unsaturated ketones and aldehydes in acetic acid at room temperature in the presence of AgOAc and a catalytic amount of Pd(OAc)2 to afford the conjugate addition products (the formal hydroarylated compounds to an olefinic part) in good yields. In contrast, diarylantimony chlorides, arylantimony dichlorides, and diphenylantimony acetate react with the enones and enals
Saccharin-Salze von substituierten Hydroxypropylaminen
申请人:BAYER AG
公开号:EP0269916A1
公开(公告)日:1988-06-08
Neue Saccharin-Salze von substituierten Hydroxypropylaminen der allgemeinen Formel (I),
in welcher
R¹ bis R⁵ die in der Beschreibung gegebenen Bedeutungen haben und ihre Verwendung zur Bekämpfung von Schädlingen.
Die neuen Verbindungen der allgemeinen Formel (I) können aus geeigneten Hydroxypropylaminen und Saccharin hergestellt werden.