177544-77-3Relevant academic research and scientific papers
An in depth study of the formation of new tetrathiafulvalene derivatives from 1,8-diketones
Turksoy, Figen,Wallis, John D.,Tunca, Umit,Ozturk, Turan
, p. 8107 - 8116 (2007/10/03)
A detailed study of the reactions of phosphorus pentasulfide and Lawesson's reagent with a series of 4,5-bis(RCOCH 2S)-1,3-dithiole-2-thiones (R=Ph, 4-MeOC6H4, 4-Br C6H4, Me) has been carried out. These reactions lead to fusion of either an unsaturated 1,4-dithiin ring or a thiophene to the dithiole; the former in higher yield, while the latter is a significant product in the reactions with Lawesson's reagent; as well as small amounts of minor products. A mechanistic rationalization of these products is discussed in some detail. The new fused dithioles have been converted to novel series of fused TTF derivatives.
An unusual reaction of Lawesson's reagent with 1,8-diketones: A synthesis of fused 1,4-dithiins and thiophenes
Ozturk, Turan
, p. 2821 - 2824 (2007/10/03)
Reaction of 1,8-diketones 3 with Lawesson's reagent 8 resulted in the formation of five and six-membered rings 5-7, 18, depending on the nature of the substituents. Product 6 is converted in two steps to the unsymmetric 'ET' analogue 20, containing an extra double bond.
