Acylation of 3,4-Dihydropyrrolo[1,2-a]pyrazines. -The preparation of new heteroaromatic trifluoromethyl ketones is presented. The direction of trifluoroacetylation depends on the structure of the starting compounds and on the ratio of reagent to substrate. -(TERENIN, V. I.; KABANOVA, E. V.; TSELISHCHEVA, N. A.; KOVALKINA, M. A.; PLESHKOVA, A. P.; ZYK, N. V.; Chem. Heterocycl. Compd. (N. Y.) 40 (2004) 3, 351-360; Lomonosov Moscow State Univ., Moscow 119899, Russia; Eng.) -K. Woydowski 51-135
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