85743-82-4Relevant academic research and scientific papers
Heterocyclic Seven-Membered Ring Compounds, XXXV - The Thermal 1-Benzothiepine-Thionaphthole-Rearrangement
Hofmann, Hans,Goettfert, Christine,Gaube, Helmut
, p. 1059 - 1066 (2007/10/02)
On heating in carbon tetrachloride or nitromethane the 5-methoxy-1-benzothiepines 1-4 isomerize to the corresponding thionaphtholes 5-8, whereas in cyclohexane from 1-4 the usual desulfuration products C arise.Kinetic and thermodynamic data have been estimated for the reactions 3 -> 7 and 4 -> 8.If the thermal rearrangement of 3 resp. 4 takes place in presence of cyclohexene sulphide, one gets the desulfuration products C also in carbon tetrachloride or nitromethane as solvent together with the equimolar amount of cyclohexene.This behaviour leads to the assumption of a S2-spezies as the primary elimination product of sulphur from the episulphide intermediate A.
Heterocyclic Seven-membered Ring Compounds, XXV. - Synthesis and Thermolysis of Substituted 1-Methyl-4-phenyl-1-benzothiepinium Salts
Hofmann, Hans,Molnar, Attila,Goettfert, Christine
, p. 425 - 432 (2007/10/02)
The 1-methyl-4-phenyl-1-benzothiepinium salts 2a-e have been prepared by alkylation of the parent 1-benzothiepins 1a-e with methyl fluorosulfonate. 2a-e are thermally more stable than the corresponding compounds 1a-e.Thermolysis of 2a-e yields the α-napht
