Decarboxylative Trifluoromethylation of Aliphatic Carboxylic Acids
作者:Jacob A. Kautzky、Tao Wang、Ryan W. Evans、David W. C. MacMillan
DOI:10.1021/jacs.8b02650
日期:2018.5.30
conversion of carboxylicacids to trifluoromethyl groups via the combination of photoredox and copper catalysis. This transformation tolerates a wide range of functionality including heterocycles, olefins, alcohols, and strained ring systems. To demonstrate the broad potential of this new methodology for late-stage functionalization, we successfully converted a diverse array of carboxylic acid-bearing
Copper-Catalyzed Trifluoromethylation of Alkyl Bromides
作者:David J. P. Kornfilt、David W. C. MacMillan
DOI:10.1021/jacs.9b03024
日期:2019.5.1
of Csp3-bromides. Specifically, a copper/photoredox dual catalytic system for the coupling of alkylbromides with trifluoromethyl groups is presented. This operationally simple and robust protocol successfully converts a variety of alkyl, allyl, benzyl, and heterobenzyl bromides into the corresponding alkyl trifluoromethanes.
Silver-Catalyzed Decarboxylative Trifluoromethylation of Aliphatic Carboxylic Acids
作者:Xinqiang Tan、Zhonglin Liu、Haigen Shen、Pei Zhang、Zhenzhen Zhang、Chaozhong Li
DOI:10.1021/jacs.7b07944
日期:2017.9.13
The silver-catalyzed decarboxylativetrifluoromethylation of aliphatic carboxylicacids is described. With AgNO3 as the catalyst and K2S2O8 as the oxidant, the reactions of aliphatic carboxylicacids with (bpy)Cu(CF3)3 (bpy = 2,2'-bipyridine) and ZnMe2 in aqueous acetonitrile at 40 °C afford the corresponding decarboxylativetrifluoromethylation products in good yield. The protocol is applicable to
Impact of Fluoroalkyl Substituents on the Physicochemical Properties of Saturated Heterocyclic Amines
作者:Kostiantyn P. Melnykov、Olha Tavlui、Artem Skreminskiy、Yuliya O. Kuchkovska、Oleksandr O. Grygorenko
DOI:10.1002/chem.202201601
日期:2022.10.4
The replacement of azetidine, pyrrolidine, and piperidine with their fluoroalkyl-substituted analogs was shown to modulate basicity, lipophilicity and aqueous solubility. Comprehensive analysis of the obtained physicochemical data was carried out to guide rational fine-tuning of compounds’ properties related to drug optimization.
Trifluoromethylation of Carbonyl and Unactivated Olefin Derivatives by C(
<i>sp</i>
<sup>
<i>3</i>
</sup>
)−C Bond Cleavage
作者:Fei Cong、Riccardo S. Mega、Jinhong Chen、Craig S. Day、Ruben Martin
DOI:10.1002/anie.202214633
日期:2023.4.3
A Cu-mediated trifluoromethylation of carbonyl-type compounds and unactivatedolefins enabled by visible-light irradiation via σ C(sp3)−C bond-functionalization has been developed. This protocol is characterized by its modularity, mild conditions and wide scope—even in the context of late-stage functionalization, thus offering a complementary approach en route to valuable C(sp3)−CF3 architectures from