A nickel-catalyzed, enantioselective, three-component fluoroalkylarylation of unactivated alkenes with aryl halides and perfluoroalkyl iodides has been described. This cross-electrophile coupling protocol utilizes a chiral nickel/BiOx system as well as a pendant chelating group to facilitate the challenging three-component, asymmetric difunctionalization of unactivated alkenes, providing direct access
Efficient and Simple Approaches Towards Direct Oxidative Esterification of Alcohols
作者:Ritwika Ray、Rahul Dev Jana、Mayukh Bhadra、Debabrata Maiti、Goutam Kumar Lahiri
DOI:10.1002/chem.201403786
日期:2014.11.17
The present article describes novel oxidative protocols for directesterification of alcohols. The protocols involve successful demonstrations of both “cross” and “self” esterification of a wide variety of alcohols. The cross‐esterification proceeds under a simple transition‐metal‐free condition, containing catalytic amounts of TEMPO (2,2,6,6‐tetramethyl‐1‐piperidinyloxy)/TBAB (tetra‐n‐butylammonium
Rhenium-catalyzed allylation of C–H bonds of benzoic and acrylic acids
作者:Yoichiro Kuninobu、Kazuhiro Ohta、Kazuhiko Takai
DOI:10.1039/c1cc12359a
日期:——
We have succeeded in the allylation of aromatic and olefinic CâH bonds of benzoic and acrylic acids using a rhenium catalyst, Re2(CO)10. In this reaction, isomerization of the introduced allyl group to the 1-propenyl group did not occur.
The present invention provides a composition comprising a combination of components A) and B), wherein component A) is a compound of formula (I) and the component (B) is a further fungicide, insecticide or herbicide.
The present invention provides a composition comprising a combination of components A) and B), wherein component A) is a compound of formula (I) and the component (B) is a further fungicide, insecticide or herbicide.