Thionation of N-methyl- and N-unsubstituted thiazolidine enaminones
| Autor: | Milovan Stojanovic, Aleksandar Rašović, Rade Marković, Stanka Jovetic, Marija Baranac, Peter J. Steel |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
2-dithiole
3aλ4 4-trithia 010405 organic chemistry Chemistry Reaction step Thiazolidine 4-trithia-1-azapentalene General Chemistry 010402 general chemistry 01 natural sciences Medicinal chemistry 0104 chemical sciences thiazolidine enaminone lcsh:Chemistry chemistry.chemical_compound lawesson’s reagent lcsh:QD1-999 3al4 1 2-dithiole Lawessons reagent Organic chemistry Lawesson's reagent |
| Zdroj: | Journal of the Serbian Chemical Society, Vol 69, Iss 11, Pp 909-918 (2004) |
| ISSN: | 1820-7421 0352-5139 |
| Popis: | The potential of directional non-bonded 1,5-type S???O interactions to initiate the incipient stage of an in situ rearrangement of N-unsubstituted thiazolidine enaminones to functionalized 1,2-dithioles has been demonstrated. The spectral characteristics, as well as X-ray structural analysis of a selected rearranged product, indicate that a dynamic interconversion occurs in solution between the 1,2-dithiole and the 3,3a?4,4-trithia-1-azapentalene bicylic form. The lack of the rearrangement in the case of a N-methyl substituted enaminone precursor is attributed to an unfavorable methyl migration in the last reaction step. |
| Databáze: | OpenAIRE |
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