4-Diethylamino-3-ethylphenylboronic acid → Ethyl 4'-[3-(tert-butyldimethylsilanyloxy)propoxy]-4''-diethylamino-3''-ethyl[1,1';3',1'']terphenyl-4-carboxylate

Participants

Reaction Steps

In a manner similar to that of Example 1d, by reacting 1.4 g (2.9 mmol) of ethyl 3′-bromo-4′-[3-(tert-butyldimethylsilanyloxy)propoxy]biphenyl-4-carboxylate (obtained in Example 5b) with 900 mg of 4-diethylamino-3-ethylphenylboronic acid (4 mmol) in the presence of tetrakis(triphenylphosphine)palladium, 674 mg of ethyl 4′-[3-(tert-butyldimethylsilanyloxy)propoxy]-4″-diethylamino-3″-ethyl[1,1′;3′,1″]terphenyl-4-carboxylate (yield=39%) are obtained in the form of a colorless oil.

Provenance & Evidence