327618-31-5Relevant articles and documents
Aryl Ketone Mediated Photoinduced Radical Coupling for the Alkylation?-of Benzazoles Employing Saturated Heterocyclic Compounds?
Kamijo, Kaori,Kamijo, Shin,Murafuji, Toshihiro
, p. 3859 - 3864 (2019)
An aryl ketone mediated synthesis of 2-alkylated benzazoles was achieved via radical coupling under photoirradiation starting from saturated heterocycles and 2-sulfonylated benzazoles, such as benzothiazoles, benzoxazole, and benzimidazole. Heterocyclic compounds, including a cyclic ether, azacycles, and tetrahydrothiophene, were applicable, and the benzazole unit was site-selectively installed at the carbon center proximal to the heteroatom. The present transformation takes place at ambient temperature under neutral reaction conditions without the aid of any metallic catalysts or reagents.
Heterogeneous Co-catalyzed direct 2-alkylation of azoles with ethers
Yang, Ke,Li, Dashan,Zhang, Lei,Chen, Qun,Tang, Tiandi
, p. 13671 - 13674 (2018/04/26)
The direct 2-alkylation of oxazoles and thiazoles with ethers through cross-dehydrogenative coupling reaction using Co-containing mesoporous zeolite ETS-10 as the heterogeneous catalyst is described. The basic Co-containing mesoporous zeolite ETS-10 catal
Light Induced C-C Coupling of 2-Chlorobenzazoles with Carbamates, Alcohols, and Ethers
Lipp, Alexander,Lahm, Günther,Opatz, Till
, p. 4890 - 4897 (2016/07/06)
A light induced, transition-metal-free C-C coupling reaction of 2-chlorobenzazoles with aliphatic carbamates, alcohols, and ethers is presented. Inexpensive reagents, namely sodium acetate, benzophenone, water, and acetonitrile, are employed in a simple reaction protocol using a cheap and widely available 25 W energy saving UV-A lamp at ambient temperature.