Suzuki–Miyaura Coupling of Simple Ketones via Activation of Unstrained Carbon–Carbon Bonds
作者:Ying Xia、Jianchun Wang、Guangbin Dong
DOI:10.1021/jacs.8b02462
日期:2018.4.25
Here, we describe that simple ketones can be efficiently employed as electrophiles in Suzuki-Miyauracoupling reactions via catalytic activation of unstrained C-C bonds. A range of common ketones, such as cyclopentanones, acetophenones, acetone and 1-indanones, could be directly coupled with various arylboronates in high site-selectivity, which offers a distinct entry to more functionalized aromatic
在这里,我们描述了通过催化激活无张力的 CC 键,简单的酮可以在 Suzuki-Miyaura 偶联反应中有效地用作亲电子试剂。一系列常见的酮,如环戊酮、苯乙酮、丙酮和1-茚满酮,可以直接与各种芳基硼酸酯以高位点选择性偶联,这为获得更多功能化的芳香酮提供了独特的途径。初步机理研究表明酮 α-CC 键通过氧化加成断裂。
Ketone Formation via Mild Nickel-Catalyzed Reductive Coupling of Alkyl Halides with Aryl Acid Chlorides
作者:Fan Wu、Wenbin Lu、Qun Qian、Qinghua Ren、Hegui Gong
DOI:10.1021/ol3011198
日期:2012.6.15
The present work highlights unprecedented Ni-catalyzed reductive coupling of unactivated alkyl iodides with aryl acid chlorides to efficiently generate alkyl arylketones under mild conditions.
Abstract Alkyl aryl ketones were prepared on a gram scale by the nickel-catalyzed reductive coupling of alkyl iodides with aroyl chlorides. When scaled up 30-fold, this reaction shows a comparable coupling efficiency to the previously reported reaction performed under small-scale conditions. The mild and convenient reaction conditions show excellent tolerance to a range of functional groups and provide
Alkyl aryl ketones are important structures with applications in many areas of chemistry. Hence, efficient procedures for their production are particularly attractive. In this communication, a general and efficientcarbonylative cross‐coupling of aryl iodides and unactivated alkyl bromides is presented. By using a simple palladium catalyst, a series of alkyl aryl ketones were synthesized in moderate
α‐Arylation, α‐Arylative Esterification, or Acylation: A Stoichiometry‐Dependent Trichotomy in the Pd‐Catalyzed Cross‐Coupling between Aldehydes and Aryl Bromides
作者:Pradeep Nareddy、Clément Mazet
DOI:10.1002/asia.201300724
日期:2013.11
Three′s company: The selective α‐arylation and α‐arylativeesterification of linear and branched aldehydes is reported for a variety of bromoarenes. The acylation of arylbromides can be achieved with linear aldehydes (see scheme). All these transformations were performed with a single [(N‐heterocyclic carbene)Pd] catalyst through adjustment of the stoichiometry of the reagents and the appropriate