... 1 HNMR (CDCl 3 ): δ 1.8 (d, 3H, J 9Hz), 4.4 (q, 1H, J 9Hz), 6.9–7.9 (m, 9H). 5). CR Hauser, BE Hudson. Organic Reactions, 1, Wiley, New York (1947), p. 262. 6). F. Babudri, F. Ciminale, L. Di Nunno, S. Florio. Tetrahedron, 38 (1982), p. 557. 7). 7). No deuterium incorporation at the methyl group of 1a was detected. Evidently, in this case the carbanionic species does not accumulate so to be trapped in the reaction medium. 8). ...