反応 #11249

反応方程式

( 860 )

7-Bromo-4-(2-chlorophenyl)-9-methoxy-3a,4,5,10c-tetrahydro-1H-[1]benzofuro[3,2-e]isoindole-1,3(2H)-dione

→

dibenzofuran

収率 67.0%

7-Bromo-4-(2-chlorophenyl)-9-methoxy-1H-[1]benzofuro[3,2-e]isoindole-1,3(2H)-dione

収率 67.0%

反応条件

実験手順

Aromatisation of (860) prepared as described in example442 with MnO2 using the procedure described in example 79 gave the dibenzofuran (861) as a yellow solid (67%). 1H NMR δ [(CD3)2SO] 8.22 (d, J=2.6 Hz, 1H), 8.14 (s, 1H), 7.62 (m, 2H), 7.48 (m, 3H), 3.98 (s, 3H). MH−:458,457,456,454.

出典