Facile one-pot synthesis of 2,3-dihydro-1H-indolizinium derivatives by rhodium(iii)-catalyzed intramolecular oxidative annulation via C–H activation: application to ficuseptine synthesis
Facile one-pot synthesis of 2,3-dihydro-1H-indolizinium derivatives by rhodium(iii)-catalyzed intramolecular oxidative annulation via C–H activation: application to ficuseptine synthesis
Cleavage of Carbon–Carbon Triple Bond: Direct Transformation of Alkynes to Nitriles
作者:Noriko Okamoto、Minoru Ishikura、Reiko Yanada
DOI:10.1021/ol401311h
日期:2013.6.7
A new cleavage reaction of carbon–carbon triple bonds proceeds efficiently with NIS and TMSN3, giving the corresponding nitriles in moderate to good yields.
NIS和TMSN 3可以有效地进行碳-碳三键的新裂解反应,从而以中等至良好的产率获得相应的腈。
Stereoselective Synthesis of Pyrroloisoindolone and Pyridoisoindolone via aza-Prins Cyclization of Endocyclic <i>N</i>-Acyliminium Ions
作者:Malay Das、Anil K. Saikia
DOI:10.1021/acs.joc.8b00440
日期:2018.6.1
A simple methodology has been developed for the synthesis of substituted pyrroloisoindolone and pyridoisoindolone via aza-Prinscyclization of endocyclic N-acyliminium ions, which are derived from the triflic acid treatment of regioselectively reduced N-homopropargyl imides in excellent yields. The reaction is highly diastereoselective, and only one diastereoisomer is formed during the reaction. The
Aryl Radical Enabled, Copper-Catalyzed Sonogashira-Type Cross-Coupling of Alkynes with Alkyl Iodides
作者:Xiaojun Zeng、Chao Wang、Wenhao Yan、Jian Rong、Yanshan Song、Zhiwei Xiao、Aijie Cai、Steven H. Liang、Wei Liu
DOI:10.1021/acscatal.2c05901
日期:2023.2.17
Despite the success of Sonogashira coupling for the synthesis of arylalkynes and conjugated enynes, the engagement of unactivated alkyl halides in such reactions remains historically challenging. We report herein a strategy that merges Cu-catalyzed alkyne transfer with the aryl radical activation of carbon–halide bonds to enable a general approach for the coupling of alkyl iodides with terminal alkynes