Potassium Carbonate → 2,2'-(5-(8-(4-(9H-carbazol-9-yl)phenyl)dibenzo[b,d]furan-2-yl)-1,3-phenylene)bis(benzo[d]oxazole)

Participants

Reaction Conditions

Reaction Steps

A mixture of Compound 13 (1.00 g, 2.28 mmol), 2,2′-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-phenylene)bis(benzo[d]oxazole) (1.159 g, 2.37 mmol), tetrakis(triphenylphosphine) palladium(0) (0.13 g, 0.11 mmol), potassium carbonate (0.95 g, 6.85 mmol), 1,4-dioxane (20.00 mL), and water (4.00 mL) was degassed with bubbling argon for 20 minutes at 45° C. The reaction was then heated to 100° C. and stirred overnight (16.5 hours), maintaining an argon atmosphere. The precipitated product was filtered, dried, and performed boiling ethyl acetate, chloroform, and methanol washes. The solid product was collected to yield Host-7 (0.75 g, 45%). Confirmed by LCMS (APCI): calculated for C50H29N3O3 (M+H): 720. Found: 720.

Provenance & Evidence