A series of new quinazoline derivatives bearing a vinylic chloride group on the 2-position was prepared by using a consecutive SRN1 / ERC1 radical strategy.
Radical–nucleophilic substitution (S<sub>RN</sub>1) reactions: preparation and reactions of α-nitrosuiphides
作者:W. Russell Bowman、Geoffrey D. Richardson
DOI:10.1039/p19800001407
日期:——
α-Nitrosulphides were prepared by SRN1 reaction of 2-bromo-2-nitropropane with thiolate anions, and by SN2 attack of sodium 2-nitropropan-2-ide on symmetrical disulphides. The α-nitrosulphides undergo radicalnucleophilic substitution (SRN1) by nitronate, sulphinate, and malonate anions, but not by thiolate anions.
imines or pyrrole compounds. Harnessing the power of photocatalysis, we accomplished a straightforward synthesis of 3-oxazolin-5-ones from redox-active esters and secondary nitrocompounds. Visible light-induced nondecarboxylative coupling of a redox-active ester, nitro aldol condensation, and subsequent visible light-induced N-oxide deoxygenation were accomplished within 2 h. The reaction mechanism was