Highly Functionalized Biaryls via Suzuki-Miyaura Cross-Coupling Catalyzed by Pd@MOF under Batch and Continuous Flow Regimes
作者:Vlad Pascanu、Peter R. Hansen、Antonio Bermejo Gómez、Carles Ayats、Ana E. Platero-Prats、Magnus J. Johansson、Miquel À. Pericàs、Belén Martín-Matute
DOI:10.1002/cssc.201402858
日期:2015.1
currently existing commercial procedures. Most importantly, Pd@MIL‐101‐NH2 was packed in a micro‐flow reactor, which represents the first report of metallic nanoparticles supported on MOFs employed in flow chemistry for catalytic applications. A small library of 11 isolated compounds was created in a continuous experiment without replacing the catalyst, demonstrating the potential of the catalyst for large‐scale
Novel acyl hydrazino thiophene derivatives, process for preparing them, their use as medicinal products, pharmaceutical compositions and novel use
申请人:Benard Didier
公开号:US20050154048A1
公开(公告)日:2005-07-14
The invention concerns novel compounds of formula (I),
process for making, pharmaceutical compositions and methods of treating diseases associated with abnormal physiological behavior in the secretion and/or the activity of cysteine proteases especially cathepsins.
Base catalyzed reaction of ethyl thioglycolate with β-aryl-β-(methylthio) acroleins: a general method for the synthesis of 2-carbethoxy-5-substituted/4,5-annulated thiophenes in high overall yields
were shown to be stable unlike their counterpart the chloroacroleins and their efficacy as 1,3-dielectrophilic properties have now been examined successfully in this work. They are shown to react with ethyl thioglycolate in the presence of anhydrous potassium carbonate in boiling ethanol to yield the corresponding 5-substituted/4,5-annulated-2-carbethoxy thiophenes in 70–80% overall high yields.
Br/Mg-exchange reaction using reagents of the general formula R2Mg (R = sBu, Mes). Highly sensitive functional groups, such as triazene or nitro, are tolerated in these exchange reactions, enabling the synthesis of various functionalized (hetero)arene and alkene derivatives after quenching with several electrophiles including allyl bromides, acylchlorides, aldehydes, ketones, and aryl iodides.
在 –78 °C 和 25 °C 之间,通过 I/Mg 或 Br/Mg 交换反应,在甲苯中,在 10 到 120 分钟内,使用以下试剂制备各种多官能化二(杂)芳基和二烯基镁试剂通式 R2Mg (R = sBu, Mes)。在这些交换反应中可以耐受三氮烯或硝基等高度敏感的官能团,在用烯丙基溴、酰氯、醛、酮和芳基碘等多种亲电试剂淬灭后,可以合成各种功能化的(杂)芳烃和烯烃衍生物.