Помогите ознакомиться со статьей:
Sergio Clementi and Gianlorenzo Marino, "The dependence of the values of electrophilic substitutions upon the nature of the aromatic substrate: trifluoroacetylation of substituted furans, thiophens, and pyrroles", J. Chem. Soc., Perkin Trans. 2, 1972, cтр. 71-73.
- DOI:
http://dx.doi.org/10.1039/P29720000071