Palladium-catalyzed regiodivergent hydroaminocarbonylation of alkenes to primary amides with ammonium chloride
作者:Bao Gao、Guoying Zhang、Xibing Zhou、Hanmin Huang
DOI:10.1039/c7sc04054g
日期:——
the synthesis of primary amides has long been an elusive aim. Here, we report an efficient catalytic system which enables inexpensive NH4Cl to be utilized as a practical alternative to gaseous ammonia for the palladium-catalyzed alkene-hydroaminocarbonylation reaction. Through appropriate choice of the palladium precursors and ligands, either branched or linear primary amides can be obtained in good
We achieved chemoselective synthesis of α-alkylated arylacetonitriles and acetamides by combining Ir complex-catalysed direct coupling of alcohols and nitriles by a simple adjustment of the base. Methanol and ethanol performed well as the alkylating reagents. This method of acetonitrile alkylation provided a novel approach for carbon chain extension.
我们通过简单的碱调节,结合 Ir 络合物催化的醇和腈的直接偶联,实现了 α-烷基化芳基乙腈和乙酰胺的化学选择性合成。甲醇和乙醇作为烷基化试剂表现良好。这种乙腈烷基化方法为碳链延长提供了一种新方法。
(BIS)sulfonamide derivatives
申请人:——
公开号:US20040054009A1
公开(公告)日:2004-03-18
The present invention provides (bis) sulfonamide derivatives of formula (I) useful for potentiating glutamate receptor function in a mammal and therefore, useful for treating a wide variety of conditions, such as psychiatric and neurological disorders.
[EN] GROWTH HORMONE COMPONENT AND BONE ANTI-RESORPTIVE AGENT IN CYCLIC (COHERENCE) TREATMENT OF OSTEOPOROSIS<br/>[FR] CONSTITUANT D'HORMONE DE CROISSANCE ET AGENT ANTI-RESORPTION OSSEUSE UTILISES DANS LE TRAITEMENT CYCLIQUE (A COHERENCE) DE L'OSTEOPOROSE
申请人:NOVO NORDISK A/S
公开号:WO1997046252A1
公开(公告)日:1997-12-11
(EN) A novel method of treating or preventing the outbreak of osteoporosis in an animal, e.g. a mammal, in particular a human being, comprises cyclic administration to the individual of a growth hormone component optionally supplemented with continuous administration of a medicament having estrogenic effect and/or a medicament having gestagenic effect.(FR) Nouveau procédé de traitement ou de prévention de l'ostéoporose chez un animal, un mammifère, par exemple, et notamment chez l'homme, comprenant l'administration cyclique d'un constituant d'hormone de croissance au sujet, éventuellement complétée par l'administration continue d'un médicament à effet oestrogène et/ou d'un médicament à effet progestatif.
The present invention provides certain N-substituted sulfonamide derivatives useful for potentiating glutamate receptor function in a mammal and therefore, useful for treating a wide variety of conditions, such as psychiatric and neurological disorders.