Add time:07/29/2019         Source:sciencedirect.com

Exclusive formation of either 2- or 4-trifluoromethyl(1H,5)arylodiazepines 43 was observed in the condensation of 1,1,1-trifluoro-3-(isobutoxymethylene)-2-propanones (RH,COCF3) 2 with o-arylenediamines 1 under microwave irradiation conditions. Thermal reactions under the same temperature and time produced no products.

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