Fluorous-Tagged Carbamates for the Pd-Catalyzed Amination of Aryl Halides
摘要:
[GRAPHICS]A novel fluorous-tagged ammonia surrogate has been synthesized and its application to the synthesis of anilines by Buchwald-Hartwig palladium-catalyzed amidation-hydrolysis protocol is described. Primary anilines were obtained in moderate to good yields after a sequence of two reaction steps involving fluorous separation techniques for their purification. Preliminary results indicate that N-substituted anilines can also be obtained using just N-substituted-(F)Boc carbamates as the nitrogen source.
Effect of Composition on Antibacterial Activity of Sequence-Defined Cationic Oligothioetheramides
作者:Christine M. Artim、Ngoc N. Phan、Christopher A. Alabi
DOI:10.1021/acsinfecdis.8b00079
日期:2018.8.10
sequence-defined oligothioetheramides (oligoTEAs), we explore the impact of the cationic pendant group and backbone hydrophobicity on the potency and selectivity of antibacterial oligoTEAs. Through antibacterial, cytotoxicity, membrane destabilization, and membrane depolarization assays, we find a strong dependency on the nature of the cationicgroup and improved selectivity toward bacteria by tuning backbone
Fluorous-Tagged Carbamates for the Pd-Catalyzed Amination of Aryl Halides
作者:Andrés A. Trabanco、Juan A. Vega、M. Alejandro Fernández
DOI:10.1021/jo701573w
日期:2007.10.1
[GRAPHICS]A novel fluorous-tagged ammonia surrogate has been synthesized and its application to the synthesis of anilines by Buchwald-Hartwig palladium-catalyzed amidation-hydrolysis protocol is described. Primary anilines were obtained in moderate to good yields after a sequence of two reaction steps involving fluorous separation techniques for their purification. Preliminary results indicate that N-substituted anilines can also be obtained using just N-substituted-(F)Boc carbamates as the nitrogen source.
Decomplexation as a rate limitation in the thiol-Michael addition of <i>N</i>-acrylamides
作者:Joseph S. Brown、Andrew W. Ruttinger、Akash J. Vaidya、Christopher A. Alabi、Paulette Clancy
DOI:10.1039/d0ob00726a
日期:——
modification. Here, we combinedexperimental and quantum mechanical modeling approaches using density functional theory (DFT) to examine the thiol-Michael reaction of N-allyl-N-acrylamide monomers used to prepare sequence-defined oligothioetheramides (oligoTEAs). Experimentally, the reaction was evaluated with two fluorous tagged thiols and several monomers at room temperature (22 °C and 40 °C). Using the Eyring