Decarboxylative Cross-Electrophile Coupling of <i>N</i>-Hydroxyphthalimide Esters with Aryl Iodides
作者:Kierra M. M. Huihui、Jill A. Caputo、Zulema Melchor、Astrid M. Olivares、Amanda M. Spiewak、Keywan A. Johnson、Tarah A. DiBenedetto、Seoyoung Kim、Laura K. G. Ackerman、Daniel J. Weix
DOI:10.1021/jacs.6b01533
日期:2016.4.20
A new method for the decarboxylative coupling of alkyl N-hydroxyphthalimide esters (NHP esters) with aryl iodides is presented. In contrast to previous studies that form alkyl radicals from carboxylic acid derivatives, no photocatalyst, light, or arylmetal reagent is needed, only nickel and a reducing agent (Zn). Methyl, primary, and secondary alkyl groups can all be coupled in good yield (77% ave
Ruthenium-Catalyzed Three-Component Coupling via Hydrative Conjugate Addition of Alkynes to Alkenes: One-Pot Synthesis of 1,4-Dicarbonyl Compounds
作者:Yiyun Chen、Sung Hwan Park、Chung Whan Lee、Chulbom Lee
DOI:10.1002/asia.201100266
日期:2011.8.1
A catalytic three‐way rendezvous: Terminal alkynes undergo metal vinylidene formation, anti‐Markovnikov hydration to give a metal acyl complex, and conjugate addition to produce synthetically useful 1,4‐dicarbonyl compounds under ruthenium catalysis. This one‐pot three‐component coupling reaction is a useful platform for further exploration in alkyne functionalization.
Modular Approach to Saturated and α,β-Unsaturated Ketones
作者:Laurent Debien、Béatrice Quiclet-Sire、Samir Z. Zard
DOI:10.1021/ol202399c
日期:2011.10.21
2-Fluoro-6-pyridinyloxy derivatives of 2-ethoxyvinyl carbinois react with radicals derived from xanthates by an addition fragmentation pathway to give highly functionalized ketones after acid hydrolysis. 1,4-Diketones are readily accessible by this approach. alpha,beta-Unsaturated ketones can be obtained by starting with geminal acetoxy xanthates prepared by addition of a simpler xanthate to vinyl acetate.
Synthesis of saturated primary-secondary ?-glycols
作者:V. G. Bukharov、T. E. Pozdnyakova
DOI:10.1007/bf00909415
日期:1961.1
Conditions for the isomerization of ?-alkyl(or aryl)furfuryl alcohols