Copper‐Catalyzed Alkylation of Thiophenols with Benzyltrimethylammonium Triflates

The first copper-catalyzed cross-couplings of thiophenols with benzyltrimethylammonium triflates was developed. Various kinds of aryl thiophenols, heteroaryl thiophenols and alkylthiols demonstrated to be efficient substrates, generating the desired alkyl thioethers in moderate to good yields. Meanwhile, different benzyltrimethylammonium triflates could be well tolerated.