Pyrroles functionalised with a thianthrenium or diphenylsulfonium group undergo Stille couplings with aryl or alkynyl stannanes in good yields, avoiding the issues of instability that can hamper the use of the analogous pyrrolyl halides.
The catalytic activity of a rhodium(II) dimer complex, [RhII(TMAA)]2 (TMAA = tetramethyltetraaza[14]annulene), in C–H amination reactions with organic azides is explored.
A Rh-alkylcarbene mediated intramolecular alkene cyclopropanation has been developed. This reaction provides a rapid access to azabicyclo[3.1.0]hexanes in good to high yields.
A series of tin(II) complexes R1 supported by phenylene-1,2-diamido ligands containing a bulky N-substituent TIPT and different aromatic substituents R at the 4,5-positions are synthesised and characterised.
A regiocontrolled halogen dance of 2,5-dibromopyrroles provides isomeric dibromopyrroles using an N,N-dimethylsulfamoyl group that facilitates interconversion of 2,3- and 2,4-dibromopyrrolyllithiums.