Investigations of the generality of quaternary ammonium salts as alkylating agents in direct C–H alkylation reactions: solid alternatives for gaseous olefins
C–H alkylation reactions using short chain olefins as alkylating agents could be operationally simplified on the lab scale by using quaternary ammonium salts as precursors for these gaseous reagents: Hofmann elimination delivers in situ the desired alkenes with the advantage that the alkene concentration in the liquid phase is high. In case a catalytic system did not tolerate the conditions for Hofmann
USE OF PHOSPHINE OXIDE COMPOUNDS IN A SEMICONDUCTING LAYER COMPRISED IN AN ELECTRONIC DEVICE
申请人:Novaled GmbH
公开号:EP3406617B1
公开(公告)日:2021-03-24
US8367001B2
申请人:——
公开号:US8367001B2
公开(公告)日:2013-02-05
Ruthenium-Catalyzed C6-Propenylation Reactions of Substituted Pyridine Derivatives: Directed and Direct CH Activation
作者:Yogesh Goriya、Chepuri V. Ramana
DOI:10.1002/chem.201202379
日期:2012.10.15
One stone, two birds: Aryl pyridine derivatives in the presence of allyl bromide and a catalytic amount of [Ru(p‐cymene)Cl2}2] undergo an unexpected direct C6‐propenylation reaction of the pyridine moiety. A one‐pot one‐catalyst three‐component reaction involving sequential and selective direct and directed CH activation reactions was also developed (see scheme).