Nitrogen → HCID 58251292, compound

Participants

Reaction Steps

43.5 g (90 mmol) of diethyl 2-chloro-5-pyren-1-ylterephthalate, 21.5 g (120 mmol) of 1-naphthylboronic acid and 58.1 g of Cs2CO3 are initially introduced in 230 ml of dry dioxane, and the mixture is saturated with N2 for 30 min. 2.7 ml of a 1.0 M solution of tri-tert-butylphosphine in toluene, followed by 300 mg (1.3 mmol) of Pd(OAc)2, are then added. The mixture is heated at the boil for 4 h and extended with water and EtOH, and the precipitate is filtered off with suction, washed with water and EtOH and dried. The solid is recrystallised three times from dioxane and then has a purity of >99% according to 1H-NMR. The yield is 44.2 g (90%) of colourless solid.

Provenance & Evidence