Catalytic Cross-Coupling of Alkylzinc Halides with α-Chloroketones
作者:Chrysa F. Malosh、Joseph M. Ready
DOI:10.1021/ja0467768
日期:2004.8.1
this method, primary and secondary alkyl groups are introduced adjacent to a ketone carbonyl under mild reaction conditions and in good yield. Cyclic, acyclic, aromatic, and aliphatic α-chloroketones are suitable substrates. Opticallyactive α-chloroketones are converted to opticallyactive products. The reaction was found to proceed stereospecifically with inversion of stereochemistry. The reaction
Nickel‐Catalysis Enabling α‐Alkylation of Ketones by Secondary Alcohols
作者:Amreen K Bains、Ayanangshu Biswas、Abhishek Kundu、Debashis Adhikari
DOI:10.1002/adsc.202200522
日期:2022.8.16
The α-alkylation of ketones utilizing a secondary alcohol has been accomplished by an isolable, bench-stable, inexpensive nickel catalyst affording high yields of β,β-disubstituted products. This report contributes a nickel catalyst in the pool of a few scarce examples of base metal discovered for this purpose. The substrate scope can span a wide range including aliphatic, alicyclic, and cyclic secondary
2-Aminotetralones: Novel inhibitors of MurA and MurZ
作者:Colin J. Dunsmore、Keith Miller、Katy L. Blake、Simon G. Patching、Peter J.F. Henderson、James A. Garnett、William J. Stubbings、Simon E.V. Phillips、Deborah J. Palestrant、Joseph De Los Angeles、Jennifer A. Leeds、Ian Chopra、Colin W.G. Fishwick
DOI:10.1016/j.bmcl.2008.01.089
日期:2008.3
Several 2-aminotetralones were identified as novel inhibitors of the bacterial enzymes MurA and MurZ. A number of these inhibitors demonstrated antibacterial activity against Staphylococcus aureus and Escherichia coli with MICs in the range 8-128 mu g/ml. Based on structure-activity relationships we propose that the alpha-aminoketone functionality is responsible for the inhibitory activity and evidence is provided to support a covalent mode of action involving the C115 thiol group of MurA/MurZ. (C) 2008 Elsevier Ltd. All rights reserved.
Synthetic Estrogens, Implantation Inhibitors, and Hypocholesterolemic Agents. I. Tetrahydronaphthalene Series
作者:W. L. Bencze、L. I. Barsky、R. W. J. Carney、A. A. Renzi、George. deStevens
DOI:10.1021/jm00314a002
日期:1967.3
Gutsche et al., Journal of the American Chemical Society, 1957, vol. 79, p. 4441,4446