Synthesis of Benzofurans<i>via</i>Tandem Rhodium-Catalyzed C(<i>sp</i><sup>3</sup>)H Insertion and Copper-Catalyzed Dehydrogenation
作者:Lin Li、Xiao-Han Xia、Yong Wang、Pranjal P. Bora、Qiang Kang
DOI:10.1002/adsc.201500396
日期:2015.6.15
approach for the synthesis of benzofuran derivatives (up to 88% yield) from 1‐sulfonyl‐1,2,3‐triazoles has been developed. The cascade reaction involves sequential rhodium‐catalyzed C(sp3)Hinsertion and copper‐catalyzed aerobic oxidation. The method was made more convenient towards the synthesis of benzofurans starting fromterminalalkynes via a one‐pot sequential copper‐catalyzed alkyne‐azide cycloaddition
Visible Light-Induced Radical Addition/Annulation to Construct Phenylsulfonyl-Functionalized Dihydrobenzofurans Involving an Intramolecular 1,5-Hydrogen Atom Transfer Process
作者:Shentong Xie、Yifan Li、Ping Liu、Peipei Sun
DOI:10.1021/acs.orglett.0c03038
日期:2020.11.20
A visible light-induced radical cascade reaction of 2-alkynylarylethers with sodium sulfinates was established for the synthesis of sulfonyl-functionalized dihydrobenzofurans, and an intramolecular 1,5-hydrogen atom transfer was involved in this transformation. This process provided an efficient and convenient C–C formation protocol for the construction of a dihydrobenzofuran ring. Various substituents
Template-Hopping Approach Leads to Potent, Selective, and Highly Soluble Bromo and Extraterminal Domain (BET) Second Bromodomain (BD2) Inhibitors
作者:Helen E. Aylott、Stephen J. Atkinson、Paul Bamborough、Anna Bassil、Chun-wa Chung、Laurie Gordon、Paola Grandi、James R. J. Gray、Lee A. Harrison、Thomas G. Hayhow、Cassie Messenger、Darren Mitchell、Alexander Phillipou、Alex Preston、Rab K. Prinjha、Francesco Rianjongdee、Inmaculada Rioja、Jonathan T. Seal、Ian D. Wall、Robert J. Watson、James M. Woolven、Emmanuel H. Demont
DOI:10.1021/acs.jmedchem.0c02156
日期:2021.3.25
describing the discovery and optimization of bromo and extraterminal inhibitors which are selective for the second bromodomain (BD2); these include our own work toward GSK046 (3) and GSK620 (5). This paper describes our approach to mitigating the genotoxicity risk of GSK046 by replacement of the acetamide functionality with a heterocyclic ring. This was followed by a template-hopping and hybridization approach
A protocol for regio‐controlled hydromagnesiation of 1,3‐enynes was developed using magnesium hydride that is generated in situ by solvothermal treatment of sodium hydride (NaH) and magnesium iodide (MgI2) in THF. The resulting allenylmagnesium species could be converted into tri‐ and tetra‐substituted allenes by subsequent treatment with various carbon‐ and silicon‐based electrophiles with the aid