| Autor: |
Levanova, E. P., Nikonova, V. S., Grabel'nykh, V. A., Russavskaya, N. V., Chirkina, E. A., Albanov, A. I., Rozentsveig, I. B., Korchevin, N. A. |
| Předmět: |
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| Zdroj: |
Russian Journal of Organic Chemistry; Dec2018, Vol. 54 Issue 12, p1754-1759, 6p, 4 Diagrams |
| Abstrakt: |
Electron-donor effect of the methyl group in 1,3-dichlorobut-2-ene hampers allylic rearrangement of its primary monochalcogenation products. The use of diphenyl disulfide under harsh conditions (Ph2S2-KOH, 1: 10, 75-80°C) makes it possible to obtain a mixture of six bis(phenylsulfanyl)butenes, 1,1-bis(phenylsulfanyl) but-1-ene being the major component. No bis(phenylselanyl) derivatives have been formed on heating up to 80°C. Dipotassium ethane-1,2-dithiolate reacts with 1,3-dichlorobut-2-ene to give a linear product of chlorine substitution at the sp3-carbon atom in two dichlorobutene molecules and a heterocyclic compound, 2-ethylidene-1,4-dithiane (a mixture of E and Z isomers), whose structure is different from the structure of the product obtained from 1,3-dichloropropene under analogous conditions. Mechanisms have been proposed for the formation of the isolated compounds. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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