FIELD: chemistry.
SUBSTANCE: invention relates to a method of obtaining 1,7-dithia-3,5-diasacycloalkan-4-ones (1), which consists in the fact that α,ω-alkanedithiol of the general formula HS(CH2)nSH (where n=2-5) is preliminarily mixed at room temperature of ~20°C with a water solution of formaldehyde and subjected to interaction with carbamide H2NC(O)NH2 in the presence of a promoter n-BuONa with the molar ratio HS(CH2)nSH:CH2O:H2NC(O)NH2:n-BuONa=10:20:10:(5-15) in a solution of n-butanol at 60°C and atmospheric pressure for 6-10 h with the output of 50-85%.
EFFECT: increase of the method efficiency.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OBTAINING 1,7-DITHIA-3,5-DIASACYCLOALKAN-4-(THI)ONES | 2013 |
|
RU2551687C1 |
| METHOD OF PRODUCING 1,7-DITHIA-3,5-DIAZACYCLOALKAN-4-ONES | 2014 |
|
RU2565778C1 |
| 1,4,7(8,9)-TRITIA 2,9(10,11)-DIAZACYCLOALKANE 1,1-DIOXIDES AND METHOD FOR THEIR PREPARATION | 2020 |
|
RU2773315C2 |
| METHOD FOR PRODUCING 1,2(1,5)-{BIS[ALKYL-(2-CYANO-3-SULPHANYL)PROPANOATE]}ETHANE(SULPHANE-3-YLPENTANES) | 2021 |
|
RU2780151C1 |
| METHOD OF PRODUCING 1,3,5-THIADIAZINAN-4-(THI)ONES | 2010 |
|
RU2447067C1 |
| METHOD FOR PHASE PRODUCTION OF 1,7,13,19,25,31,37,43-OCTATHIA-3,5,9,11,15,17,21,23,27,29,33,35,39,41,45,47-HEXADECAAZACYCLOOCTATETRACONTANE-4,10,16,22,28,34,40,46-OCTATHIONE AND 5,6-DIHYDRO-2H-THIADIAZINE HYDROIODIDE | 2010 |
|
RU2490264C2 |
| METHOD OF OBTAINING N-(1,5,3-DITHIAZONAN-3-YL)AMIDES | 2012 |
|
RU2518488C2 |
| METHOD OF OBTAINING N-(1,5,3-DITHIAZONAN-3-YL)AMIDES | 2012 |
|
RU2516696C1 |
| METHOD OF OBTAINING BIS-(3-METHOXYBENZAMIDYL)-TETRATHIAZACYCLOALKANES | 2012 |
|
RU2541796C2 |
| METHOD FOR PRODUCING 2-{[({2-[({[2-(AMINOCARBONYL)PHENYL]AMINO}METHYL)THIO]ALKYL}THIO)-METHYL]AMINO}BENZAMIDES | 2021 |
|
RU2779385C2 |
