报道了一种用于活化的亚甲基物质的芳基化的通用的新氧化方法。在温和的反应条件下(室温至40°C),Cu(OTf)2介导功能化的芳基硼物种与各种稳定的sp 3-亲核试剂的选择性偶联。丙二酸叔丁酯和酰胺基酯可用作底物以生成四元中心。作为传统交叉偶联或S N Ar方案的补充,在卤素亲电试剂(包括芳基溴化物和碘化物)存在下,该转化过程具有化学选择性。带有酰胺基,磺酰基基和膦酰基基团的底物不适合在温和的Hurtley型条件下偶联,是合适的反应伙伴。
OXIDATIVE COUPLING OF ARYL BORON REAGENTS WITH SP3-CARBON NUCLEOPHILES, AND AMBIENT DECARBOXYLATIVE ARYLATION OF MALONATE HALF-ESTERS VIA OXIDATIVE CATALYSIS
申请人:The Governors of the University of Alberta
公开号:US20180186721A1
公开(公告)日:2018-07-05
Described herein are methods of oxidative coupling of aryl boron reagents with sp
3
-carbon nucleophiles, and ambient decarboxylative arylation of malonate half-esters via oxidative catalysis.
Oxidative Coupling of Aryl Boron Reagents with sp<sup>3</sup>-Carbon Nucleophiles: The Enolate Chan-Evans-Lam Reaction
作者:Patrick J. Moon、Heather M. Halperin、Rylan J. Lundgren
DOI:10.1002/anie.201510558
日期:2016.1.26
Reported is a versatile new oxidative method for the arylation of activated methylene species. Under mild reaction conditions (RT to 40 °C), Cu(OTf)2 mediates the selective coupling of functionalized aryl boron species with a variety of stabilized sp3‐nucleophiles. Tertiary malonates and amido esters can be employed as substrates to generate quaternary centers. Complementing either traditional cross‐coupling
报道了一种用于活化的亚甲基物质的芳基化的通用的新氧化方法。在温和的反应条件下(室温至40°C),Cu(OTf)2介导功能化的芳基硼物种与各种稳定的sp 3-亲核试剂的选择性偶联。丙二酸叔丁酯和酰胺基酯可用作底物以生成四元中心。作为传统交叉偶联或S N Ar方案的补充,在卤素亲电试剂(包括芳基溴化物和碘化物)存在下,该转化过程具有化学选择性。带有酰胺基,磺酰基基和膦酰基基团的底物不适合在温和的Hurtley型条件下偶联,是合适的反应伙伴。
Synthesis of two-dimensional phenylene–boroxine networks through in vacuo condensation and on-surface radical addition
作者:Stefan Schlögl、Thomas Sirtl、Johanna Eichhorn、Wolfgang M. Heckl、Markus Lackinger
DOI:10.1039/c1cc13896k
日期:——
We report on covalent two-dimensional phenyleneâboroxine hybrid-networks that were synthesized under ultra-high vacuum conditions from doubly functionalized monomers through thermally activated condensation prior to deposition and successive heterogeneously catalyzed radical addition on Ag(111). Structural properties were characterized in situ by high resolution Scanning-Tunneling-Microscopy (STM).