8,8-Dimethyl-8H-10,12b-diazabenzo[a]aceanthrylene-3-boronic acid → 8,8,8',8'-Tetramethyl-8H,8'H-[3,3']bi[10,12b-diazabenzo[a]aceanthrylenyl]

Participants

Reaction Steps

The compound is synthesised by the same procedure as Example 7 by reaction of 36 g (110 mmol) of 8,8-dimethyl-8H-10,12b-diazabenzo[a]aceanthrylene-3-boronic acid with (110 mmol) of 3-bromo-8,8-dimethyl-8H-10,12b-diazabenzo[a]aceanthrylene. The residue is recrystallised from toluene and from CH2Cl2/isopropanol and finally sublimed in a high vacuum. Yield: 50 g (88 mmol), 80% of theory, purity according to HPLC 99.9%.

Provenance & Evidence