148336-16-7Relevant articles and documents
Copper-catalyzed trifluoromethylation of alkenes: Synthesis of trifluoromethylated benzoxazines
Jana, Sadhan,Ashokan, Athira,Kumar, Shailesh,Verma, Ajay,Kumar, Sangit
, p. 8411 - 8415 (2015)
A simple base and ligand free copper catalyzed method for the construction of trifluoromethylated benzoxazines has been developed by using Umemoto's reagent. It involves the oxidative difunctionalization of alkenes through tandem C-O and C-CF3 bond formations. Furthermore, synthesized benzoxazines were selectively converted into trifluoromethylated allylic and (E)-vinylic benzamides by the treatment of KOtBu and CH3Li, respectively.
Efficient synthesis of SCF3-substituted tryptanthrins by a radical tandem cyclization
Guo, Jincheng,Hao, Yanan,Li, Gang,Li, Yongqiang,Liu, Yuxiu,Wang, Qingmin,Wang, Ziwen
, p. 1994 - 2001 (2020/03/23)
Herein, we report a new, efficient and atom-economical strategy for the synthesis of SCF3-substituted tryptanthrin derivatives. These previously unreported derivatives were obtained by means of a radical tandem cyclization. The reaction was triggered by addition of a SCF3 radical to a carbon-carbon double bond and involved the formation of a C(sp3)-SCF3 bond, a C(sp2)-C bond, and a C(sp2)-N bond. This method has mild conditions and a wide range of substrates which is particularly useful for the preparation of substituted indolquinazoline derivatives that widely exist in many natural products, but are not easy to obtain by conventional approaches.
