Synthesis of CF2H-pyrazolines by [3+2]-cycloaddition between CF2HCHN2 and electron-deficient alkenes
Eur. J. Org. Chem. 2017, 2, 266-270
DOI: 10.1002/ejoc.201601462
Li J.; Yu X.-L.; Cossy J.; Lv S.-Y.; Zhang H.-L.; Su F.; Hai L.; Mykhailiuk P.; Wu Y.
CF2H-pyrazolines were synthesized by [3+2]-cycloaddition between in situ generated CF2HCHN2 and electron-deficient alkenes. The representative CF2H-pyrazoline was easily oxidized into the agrochemistry important CF2H-pyrazole.
![Synthesis of CF2H-pyrazolines by [3+2]-cycloaddition between CF2HCHN2 and electron-deficient alkenes](/images/publications/ejoc.201601462.png)