Halogen compounds Q 0090One-Step Preparation of α-Chlorostyrenes. -Friedel-Crafts-type acylation of electron-rich arenes with aliphatic acid chlorides in the presence of iron silicate as the heterogeneous catalyst results in formation of α-chlorostyrenes along with the normal Friedel-Crafts products. Aromatic ketones gives the expected diarylketones under similar conditions. -(BORATE*, H. B.; GAIKWAD, A. G.; MAUJAN, S. R.; SAWARGAVE, S. P.; KALAL, K. M.; Tetrahedron Lett. 48 (2007) 28, 4869-4872; Div. Org.
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