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An efficient and simple synthesis of 1-thiocarbamoylindoles is reported in which 1 H -indoles react with tetramethylthiuram monosulfide (TMTM) to give a series of 1-thiocarbamoylindoles that were obtained- in good to excellent yields. The procedure was promoted by Cs2 CO3 under transition-metal-free conditions and gives a simple entry to protected indoles. [ABSTRACT FROM AUTHOR]

A simple, highly efficient and environmentally benign method for the synthesis of benzyl dithiocarbamates was reported. Without addition of metal catalyst, a series of 34 benzyl dithiocarbamates were obtained in good to excellent yields by treating benzyl halides with tetraalkylthiuram disulfides in water. The protocol allows easy access to C(sp3)–S bond formation, features the advantages of easy performance, environmental friendliness, good to excellent yields, and good functional tolerance, showing potential value for the preparation of some biologically active compounds. By the treatment of benzyl halides with tetraalkylthiuram disulfides (TMTD, TETD and TBTD), the desired C(sp3)‐S coupling products (benzyl dithiocarbamates) could be obtained in good to excellent yields. The protocol features advantages of experimental simplicity, water as solvent, metal‐free, good functional compatibility, good to excellent yields, illustrating its potential synthetic value in the convenient preparation of some potentially biologically active compounds. [ABSTRACT FROM AUTHOR]

A metal-free Cs 2 CO 3 -promoted hydrothiolation of alkynes with aryl thioureas for stereoselective synthesis of ( Z )-vinyl sulfides has been reported. Vinyl thioethers were obtained without a metal catalyst in good yields via anti-Markovnikov and cis addition. The protocol features a broad substrate scope of the starting materials, high atom economy, good yields, and exclusive stereoselectivity, showing potential synthetic value for the synthesis of a diversity of ( Z )-vinyl thioethers.