Chemistry Letters, Vol.37, No.10, 1032-1033, 2008
CpCo1-mediated Diels-Alder Reaction Forming Dimeric 1,3-Dithiol-2-one Derivative with Spiro Structure and Successive Formation of Novel Cobalt Dithiolene Complex
4,5-Bis(bromomethyl)-1,3-dithiol-2-one (1) reacts with CPCO(CO)(2) (2) under thermal condition to undergo a debromination of 1 and to form dimeric 1,3-dithiol-2-one derivative having a spiro structure 3 by the [4 + 2] Diels-Alder reaction, and the resulted 3 further reacts with 2 to afford new CpCo-(dithiolene) complex 4.