Fluoroalkylation of Various Nucleophiles with Fluoroalkyl Sulfones through a Single Electron Transfer Process
作者:Pan Xiao、Chuanfa Ni、Wenjun Miao、Min Zhou、Jingyu Hu、Dingben Chen、Jinbo Hu
DOI:10.1021/acs.joc.9b00419
日期:2019.7.5
substitution of the phenylsulfonyl group. Mechanistic studies indicated that these reactions proceed through a unimolecular radical nucleophilic substitution (SRN1) mechanism. It is worthwhile noting that in the cases of O-nucleophiles (t-BuO– and PhO–), the addition of t-BuOK/PhCHO could significantly promote the reactions, due to the in situ formation of a highly reactive electron donor species through
Selective C(sp<sup>3</sup>)–H activation of simple alkanes: visible light-induced metal-free synthesis of phenanthridines with H<sub>2</sub>O<sub>2</sub> as a sustainable oxidant
A visible light-induced metal-free C(sp3)–H phenanthridinylation of simple alkanes with isonitrile is developed with H2O2 as a terminal sustainable oxidant.
6-Aroylated Phenanthridines via Base Promoted Homolytic Aromatic Substitution (BHAS)
作者:Dirk Leifert、Constantin Gabriel Daniliuc、Armido Studer
DOI:10.1021/ol403147v
日期:2013.12.20
2-isocyanobiphenyls react with aromatic aldehydes via base promoted homolytic aromatic substitution (BHAS) to give 6-aroylated phenanthridines. Reactions occur via addition of acylradicals to the isonitrile functionality and subsequent intramolecular BHAS of the intermediate imidoyl radicals. Initiation of the radicalchainreaction is best achieved with small amounts of FeCl3 (0.4 mol %), and the commercially
The benzoylperoxide (BPO)-promoted phenanthridinylation of simple alkanes with isonitrile is developed via C(sp(3))-H and C(sp(2))-H bond cleavage. This procedure is featured by dual C-C bond formation proceeding with the addition of an alkyl radical to isonitrile followed by radicalaromatic cyclization.