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对文献报道的以三氟甲苯为起始原料的合成方法进行了改进。减缩了两步反应,简化了工艺操作,总收率43.7％,与文献收率相仿。
The reported synthesis method using trifluoromethylbenzene as a starting material has been improved. Reduction of the two-step reaction, simplifying the process operation, the total yield of 43.7%, with the literature yield similar.