An efficient synthesis of 2-thio-5-amino substituted benzoquinones via KI catalyzed cascade oxidation/Michael addition/oxidation starting from hydroquinone

An efficient one-pot approach to 2-thio-5-amino substituted benzoquinones has been developed. The use of S-alkylisothiouronium salts as thiol equivalents is more convenient and environmental friendly.

Iodine–triphenylphosphine mediated sulfenylation of imidazoheterocycles with sodium sulfinates

An efficient approach to sulfenyl imidazoheterocycles has been developed via iodine–triphenylphosphine mediated direct sulfenylation of imidazoheterocycles with sodium sulfinates under transition-metal-free conditions.

An odorless thia-Michael addition using Bunte salts as thiol surrogates

An efficient thia-Michael addition using odorless, easy to synthesis and handle Bunte salts as thiol surrogates is introduced.