Visible-Light-Triggered Monofluoromethylation of Alkenes by Strongly Reducing 1,4-Bis(diphenylamino)naphthalene Photoredox Catalysis
作者:Naoki Noto、Takashi Koike、Munetaka Akita
DOI:10.1021/acscatal.9b00473
日期:2019.5.3
catalysis with readily accessible 1,4-bis(diphenylamino)naphthalene. The catalyst design based on the high excitation energy (E0,0) and interchromophoric conjugation features a strong reducing power and a high quantum yield of emission of the photocatalyst. In addition, their photophysical properties are preserved in various polar solvents. The present system is amenable to oxy-monofluoromethylation of alkenes
The isoxazole derivatives having the following general formula:
[wherein R1 represents an optionally substituted aryl group or aromatic heterocyclic group; R2 represents a hydrogen atom, a halogen atom, an optionally substituted alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, a cycloalkenyl group, an alkoxy group, a cyano group, a carboxyl group, an alkanoyl group, an alkoxycarbonyl group or an optionally substituted carbamoyl group; R3 represents an optionally substituted amino group or a saturated heterocyclic group; X represents an oxygen atom or a sulfur atom; n is an integer of from 2 to 6] has an excellent monoamine oxidase inhibitory activity, and is useful as a therapeutic agent or a preventive agent against nervous diseases such as depression.