photocatalytic procedure that enables the acylation/arylation of unfunctionalized alkyl derivatives in flow. The method exploits the ability of the decatungstate anion to act as a hydrogen atom abstractor and produce nucleophilic carbon-centered radicals that are intercepted by a nickel catalyst to ultimately forge C(sp3)−C(sp2) bonds. Owing to the intensified conditions in flow, the reaction time can be reduced
Synergistic Activation of Amides and Hydrocarbons for Direct C(sp
<sup>3</sup>
)–H Acylation Enabled by Metallaphotoredox Catalysis
作者:Geun Seok Lee、Joonghee Won、Seulhui Choi、Mu‐Hyun Baik、Soon Hyeok Hong
DOI:10.1002/anie.202004441
日期:2020.9.21
amides as stable and readily accessible acyl surrogates. N‐acylsuccinimides served as efficient acyl reagents for the streamlined synthesis of synthetically useful ketones from simple C(sp3)−H substrates. Detailed mechanistic investigations using both computational and experimental mechanistic studies were performed to construct a detailed and complete catalytic cycle. The origin of the superior reactivity
Analogs of oxybutynin. Synthesis and antimuscarinic and bladder activity of some substituted 7-amino-1-hydroxy-5-heptyn-2-ones and related compounds
作者:J. Paul Carter、Lalita Noronha-Blob、Vicki H. Audia、Andrea C. Dupont、Daniel W. McPherson、Kenneth J. Natalie、W. Janusz Rzeszotarski、Ciro J. Spagnuolo、Philip P. Waid、Carl Kaiser
DOI:10.1021/jm00114a016
日期:1991.10
its combined anticholinergic, antispasmodic, and local anesthetic activities. In a study directed toward development of agents possessing the beneficial properties of oxybutynin, but having a longer duration of action, a series of metabolically more stable keto analogues of the parent ester, i.e. substituted 7-amino-1-hydroxy-5-heptyn-2-ones along with some analogues and derivatives, was prepared and
Ruthenium-catalyzed coupling of aldimines with arylboronates: new synthetic method for aromatic ketones
作者:Young Jun Park、Eun-Ae Jo、Chul-Ho Jun
DOI:10.1039/b415810e
日期:——
with various arylboronates in the presence of a ruthenium catalyst furnished the corresponding ketimines in high yields for a short reaction time; the resulting ketimines were readily converted to ketones by hydrolysis.