181042-20-6Relevant articles and documents
Conversion of some substituted phenols to the corresponding masked thiophenols, synthesis of a dinickel(n) dithiolate macrocyclic complex and isolation of some metal- And ligand-based oxidation products
Brooker, Sally,Caygill, Graham B.,Croucher, Paul D.,Davidson, Tony C.,Clive, Derrick L. J.,Magnuson, Stephen R.,Cramer, Stephen P.,Ralston, Corie Y.
, p. 3113 - 3121 (2000)
A modified preparation of the masked thiolate head unit 5-(2, 6-diformyl-4-methyIphenyl) dimethylthiocarbamate 6 is detailed and two new masked thiolate head units, 5-(2, 6-diformyl-4-tert-butylphenyl) dimethylthiocarbamate 7 and S-(2-formylphenyl) dimethylthiocarbamate 8, are prepared by this method. The synthesis, crystal structure, NMR spectra and electrochemical properties of the first macrocyclic complex to be derived from 7, [Ni2Ll](GO4)2, are discussed. Oxidation of [Ni2L2](CF3SO3)2 (L22- is derived from 6 and 1, 3-diaminopropane) with cerium(iv) ammonium nitrate led to the precipitation of the black complex [Ni2L2][Ce(NO3)6], which is believed to contain a single nickel(in) centre. This complex decomposes in DMF over time (24 hours) to form the red dinickel(n) complex [Ni2L2](NO3)2-2DMF which has been structurally characterised. Oxidation of [Ni2L3](CF3SO3)2 (L32- is derived from 6 and 1, 4-diaminobutane) with I2 results in ligand oxidation forming the metal free macrocycle (L3')2t which contains two five membered isothiazole rines. This is confirmed by the X-ray crystal structure determinations of (L3')(I, ), and (L3')(I):(I2)5. The Royal Society of Chemistry 2000.
