... The scale was limited (total reaction volume 4.9 mL; concentration of organics 0.3−0.5 M), but reaction times ... For this reason, the heating method has been indicated for the examples presented in Table 1. ... 12, PhCN (16), 250 a, 60, water, PhCONH 2 (17) + PhCOOH (18) (5:4), 79 d ...