Sodiation of Arenes and Heteroarenes in Continuous Flow
作者:Niels Weidmann、Marthe Ketels、Paul Knochel
DOI:10.1002/anie.201803961
日期:2018.8.13
The first sodiations of (hetero)arenes in continuous flow using NaDA (sodium diisopropylamide) in Me2EtN are reported. This flow procedure enables sodiation of functionalized arenes and heteroarenes that decompose under batch‐sodiation conditions. The resulting sodiated (hetero)arenes react instantly with various electrophiles, such as ketones, aldehydes, isocyanates, alkyl bromides, and disulfides
Selective Metalation and Functionalization of Fluorinated Nitriles Using 2,2,6,6-Tetramethylpiperidyl Bases
作者:Thiago dos Santos、Henrique P. Orenha、Valter E. Murie、Ricardo Vessecchi、Giuliano C. Clososki
DOI:10.1021/acs.orglett.1c02572
日期:2021.10.1
nitriles via (TMP)2Zn·2MgCl2·2LiCl and TMPMgCl·LiCl (TMP = 2,2,6,6-tetramethylpiperidyl) with the exploration of new and scarcely investigated metalation positions. Regioselectivity was rationalized by DFT calculations. The quenching of the generated organozinc and organomagnesium intermediates with various electrophiles gave access to 47 highly functionalized nitriles with yields up to 95%. Additionally