1,2-Dicarbofunctionalization of Trifluoromethyl Alkenes with Pyridinium Salts via a Cycloaddition/Visible-Light-Enabled Fragmentation Cascade
Although trifluoromethyl alkenes have great synthetic potential, their 1,2-difunctionalization has been a challenge. In this Letter, we disclose the first 1,2-dicarbofunctionalization of trifluoromethyl alkenes with pyridinium salts via a cascade process
Chen, Guo-Shu,Chen, Shu-Jie,Deng, Tao,He, Zhi-Qing,Li, Jia-Hui,Liu, Li-Shan,Liu, Yun-Lin,Ren, Hai
supporting information
p. 702 - 707
(2022/01/28)
Facile one-pot tandem synthesis of perfluoroalkylated indolizines under metal-free mild conditions
A direct metal-free method for the synthesis of perfluoroalkylated indolizines by means of DIPEA-promoted tandem C[sbnd]N/C[sbnd]C bond formation was developed. Various substituted pyridines and bromoacetyl derivatives with methyl perfluoroalk-2-ynoates proceeded smoothly in this mild transformation, and the desired products were obtained in good to excellent yields under air.
Synthesis and Reaction of Methylbenzoquinolizinium Salts
All isomers of (monomethyl)benzoquinolizinium salts including five new monomethyl derivatives were prepared by photocyclization, sulfur extrusion, or cyclodehydration reaction, and their aldol-type condensation was examined.The 2- and 4-methyl derivati
Arai, Sadao,Yamazaki, Masuo,Hida, Mitsuhiko
p. 1073 - 1078
(2007/10/02)
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