Synthesis of new 4-benzoyl-5-hydroxy-3-trifluoromethylpyrazole derivatives via [1,3] rearrangements of benzoyl group using tert- butyllithium
The 4-benzoyl-3-trifluoromethyl-5-p-toluenesulfonyloxypyrazole derivatives (7a - c) were synthesized by a new procedure involving rearrangement of the benzoyl groups in 5-benzoyloxy-4-bromo-3- trifluoromethylpyrazole derivatives (5a - c) to 4-benzoyl-5-hy
Jeon, Dong Ju,Yu, Dong Wook,Yun, Kyeong Yeol,Ryu, Eung K.
p. 2159 - 2166
(2007/10/03)
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