Thio-Analogues of 2-(1H-Heteroarylidene)-1H-indene-1,3(2H)-diones, Synthesis and Formation of Metal Complexes

Article abstract of DOI:10.1007/BF00814340

2-(1H-Heteroarylidene)-1H-indene-1,3(2H)-diones were converted into anils and dianils and then into monothio- and dithio-derivatives by treatment with hydrogen sulphide.The 2-pyridinyl monothioderivate was converted into S-alkyl ethers.In contrast with the dione 1 the thio-derivatives readily formed isolable complexes with transition metals.Spectroscopic and magnetic data are reported. - Keywords: Electronic spectra; Metal complexes; Thiopyrophthalone