[EN] PROCESS FOR PREPARING N-SUBSTITUTED 1H-PYRAZOLE-5-CARBOXYLIC ACID COMPOUNDS AND DERIVATIVES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS ACIDE 1H-PYRAZOLE-5-CARBOXYLIQUE N-SUBSTITUÉS ET DE LEURS DÉRIVÉS
申请人:BASF SE
公开号:WO2014184343A1
公开(公告)日:2014-11-20
The present invention relates to a process for preparing N-substituted 1 H-pyrazole-5-carboxylic acid compounds of the formula l-A and derivatives thereof, in particular the corresponding carbonylchloride compounds (acid chlorides). It also relates to the use of these acid chlorides for preparing anthranilamide derivatives that are useful pesticides. in which the variables are as defined in the claims and the specification comprising the steps of i) reacting a compound of the formula (II) with a base selected from combinations of a magnesium-organic compound having a carbon bound magnesium and a secondary amine and magnesium amides of secondary amines in the presence of a lithium halide, where the base is used in an amount sufficient to achieve at least 80 % deprotonation of the compound of formula (II); and subjecting the product obtained in step (i) to a carboxylation by reacting it with carbon dioxide or a carbon dioxide equivalent, to obtain a magnesium salt of the compound of formula (l-A) and optionally aqueous workup to obtain the compound of the formula (l-A) as a free acid.
Palladium-catalysed C–H activation of aliphatic amines to give strained nitrogen heterocycles
作者:Andrew McNally、Benjamin Haffemayer、Beatrice S. L. Collins、Matthew J. Gaunt
DOI:10.1038/nature13389
日期:2014.6.5
highlighted through the development of C−H amination and carbonylation processes, leading to the synthesis of aziridines and β-lactams (respectively), and is suggestive of a generic C−H functionalization platform that could simplify the synthesis of aliphatic secondary amines, a class of small molecules that are particularly important features of many pharmaceutical agents.
PROCESS FOR PREPARING N-SUBSTITUTED 1H-PYRAZOLE-5-CARBOXYLIC ACID COMPOUNDS AND DERIVATIVES THEREOF
申请人:BASF SE
公开号:EP2997020A1
公开(公告)日:2016-03-23
[EN] USE OF PHENOLICALLY SUBSTITUTED SUGAR DERIVATIVES AS STABILISERS, PLASTIC COMPOSITION, METHOD FOR STABILISING PLASTICS AND PHENOLICALLY SUBSTITUTED SUGAR DERIVATIVES<br/>[FR] UTILISATION DE DÉRIVÉS DU SUCRE À SUBSTITUTION PHÉNOLIQUE COMME STABILISANTS, COMPOSITION DE MATIÈRES PLASTIQUES, PROCÉDÉ DE STABILISATION DE MATIÈRES PLASTIQUES ET DÉRIVÉS DU SUCRE À SUBSTITUTION PHÉNOLIQUE<br/>[DE] VERWENDUNG VON PHENOLISCH SUBSTITUIERTEN ZUCKERDERIVATEN ALS STABILISATOREN, KUNSTSTOFFZUSAMMENSETZUNG, VERFAHREN ZUR STABILISIERUNG VON KUNSTSTOFFEN SOWIE PHENOLISCH SUBSTITUIERTE ZUCKERDERIVATE
申请人:FRAUNHOFER GES FORSCHUNG
公开号:WO2021005075A1
公开(公告)日:2021-01-14
Die vorliegende Erfindung betrifft die Verwendung mindestens eines phenolisch substituierten Zuckerderivates als Stabilisator von organischen Materialien, insbesondere von Kunststoffen, gegen oxidativen, thermischen und/oder aktinischen Abbau. Zudem betrifft die vorliegende Erfindung eine entsprechende Kunststoffzusammensetzung, ein Verfahren zur Stabilisierung von Kunststoffen, eine Formmasse bzw. ein Formteil sowie ein phenolisch substituiertes Zuckerderivat.