... II III IV ,mNH2 -Q+=J~~HcocH, - V X VI X = 2'-, 3'-, 4'-Hal, 2'-, 3'-, 4'-SO&H,, 2'-NO,. 113 Page 2. 114 C. DIZLL'ERBA, G. GARBARINO and G. GIJAN~ ... _. _- I I.27 9.55 8.23 16.21 9.59 11.27 9.55 8.23 959 I I.27 8.23 9.59 Required % Hal S ___ __. ... _- I El. -_ P lo.95 _ 1428 27.28 11 ...