... was generously donated by Profes- sor V. Herout (Czechoslovak Academy of Science, Institute of Organio Chemistry and Biochemistry ... (28) We wish to thank Professor G. Jommi (Institute of Organic Chemis- try ... 3 H), 8.78 (t, 3 H, J = 7.0 Hz), 8.88 (9, 3 H), and 8.89 (d, 3 H, J = -6 Hz ...