Method for Producing (2,4-Dimethylbiphenyl-3-yl)Acetic Acids, the Esters Thereof and Intermediate Compounds
申请人:FISCHER Reiner
公开号:US20120116118A1
公开(公告)日:2012-05-10
The present invention relates to a novel process for preparing substituted and unsubstituted (2,4-dimethylbiphenyl-3-yl)acetic acids and their esters of the formula (I) using homogeneous and heterogeneous palladium catalysts, and also the intermediates 4-tert-butyl-2,6-dimethylphenylacetic acid and 4-tert-butyl-2,6-dimethylmandelic acid, and to processes for their preparation.
Macrocyclic ligands and their complexes for bifunctional molecular catalysis
申请人:Los Alamos National Security, LLC
公开号:US10487100B1
公开(公告)日:2019-11-26
Disclosed herein are embodiments of chiral and achiral macrocyclic polydentate ligands and methods of preparing the same. Disclosed herein are also embodiments of metal coordination complexes derived from these macrocyclic polydentate ligands and methods of preparing the same. The metal coordination complexes described herein, can be used for a variety of catalytic reactions, including hydrogenation and transfer hydrogenation of unsaturated organic compounds, dehydrogenation of alcohols and boranes, an asymmetric Michael-type addition reaction, or an aerobic oxidative kinetic resolution of an organic compound, dehydrogenative couplings and other catalytic transformations.
[EN] PROCESS FOR PREPARATION OF BENZYLIC AMIDES<br/>[FR] PROCÉDÉ DE PRÉPARATION D'AMIDES BENZYLIQUES
申请人:BASF SE
公开号:WO2018137959A1
公开(公告)日:2018-08-02
The present invention relates to a process for preparing benzylic amides of formula (I) wherein the variables have the meaning as defined in the description, by reductive amidation of a nitrile of formula (II) wherein the variables have the meanings given for formula I, with an activated carbonyl compound of formula (III), and which nitrile is obtained by reaction of a compound of formula (IV) with a halogen compound of formula (V), wherein X is a halogen atom, preferably bromo, which halogen compound V in turn is obtained by Sandmeyer reaction of an aniline derivative of formula (VI) novel compounds of formula (I), and processes for preparing compounds of formula (XII) wherein the variables have the meaning as defined in the description by condensing compounds of formula I with compounds of formula (X) and subjecting the resulting α,β-unsaturated ketone of formula (XI) to a reaction with hydroxylamine to yield compounds of formula (XII.)
The present invention relates to a process for preparing biaryls using catalysts based on palladium compounds with phosphine ligands.
本发明涉及使用基于膦配体的钯化合物催化剂制备双芳基化合物的方法。
Tetraarylborate Process for the Preparation of Substituted Biphenyls
申请人:MORADI Wahed Ahmed
公开号:US20110105796A1
公开(公告)日:2011-05-05
The present invention relates to a process for the preparation of substituted biphenyls by reacting aryl halides with tetraarylborates in the presence of palladium catalysts.