RU2012157958A - METHOD FOR PRODUCING 1,3-DIOXOLANES CONTAINING HEM.-DICHLOROCYCLOPROPYL DEPUTY - Google Patents
METHOD FOR PRODUCING 1,3-DIOXOLANES CONTAINING HEM.-DICHLOROCYCLOPROPYL DEPUTY Download PDFInfo
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- RU2012157958A RU2012157958A RU2012157958/04A RU2012157958A RU2012157958A RU 2012157958 A RU2012157958 A RU 2012157958A RU 2012157958/04 A RU2012157958/04 A RU 2012157958/04A RU 2012157958 A RU2012157958 A RU 2012157958A RU 2012157958 A RU2012157958 A RU 2012157958A
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- dichlorocyclopropyl
- oxirane
- dioxane
- formaldehyde
- sulfuric acid
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Abstract
1. Способ получения замещенных 1,3-диоксоланов, содержащих гем.-дихлорциклопропильный заместитель, конденсацией 2-(2,2-дихлорциклопропил)оксирана с формальдегидом в среде 1,4-диоксана в присутствии серной кислоты в качестве катализатора при температуре 90-100°C в течение 2 ч.2. Способ по п.1, отличающийся тем, что процесс с 2-(2,2-дихлорциклопропил)оксираном проводят при следующем соотношении компонентов, мас.%: 2-(2,2-дихлорциклопропил)оксиран 35,7; серная кислота 0,3; формальдегид 7; 1,4-диоксан 57.3. Способ по п.1, отличающийся тем, что процесс с 2-(2,2-дихлор-1-метилциклопропил)оксираном проводят при следующем соотношении компонентов, мас.%: 2-(2,2-дихлор-1-метилциклопропил)оксиран 37,7; серная кислота 0,3; формальдегид 7; 1,4-диоксан 55.1. The method of obtaining substituted 1,3-dioxolanes containing heme.-dichlorocyclopropyl substituent by condensation of 2- (2,2-dichlorocyclopropyl) oxirane with formaldehyde in 1,4-dioxane in the presence of sulfuric acid as a catalyst at a temperature of 90-100 ° C for 2 hours 2. The method according to claim 1, characterized in that the process with 2- (2,2-dichlorocyclopropyl) oxirane is carried out in the following ratio of components, wt.%: 2- (2,2-dichlorocyclopropyl) oxirane 35.7; sulfuric acid 0.3; formaldehyde 7; 1,4-dioxane 57.3. The method according to claim 1, characterized in that the process with 2- (2,2-dichloro-1-methylcyclopropyl) oxirane is carried out in the following ratio of components, wt.%: 2- (2,2-dichloro-1-methylcyclopropyl) oxirane 37.7; sulfuric acid 0.3; formaldehyde 7; 1,4-dioxane 55.
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RU2012157958/04A RU2525549C1 (en) | 2012-12-27 | 2012-12-27 | Method of obtaining 1,3-dioxolanes, containing gem-dichlorocyclopropyl substituent |
Applications Claiming Priority (1)
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RU2012157958/04A RU2525549C1 (en) | 2012-12-27 | 2012-12-27 | Method of obtaining 1,3-dioxolanes, containing gem-dichlorocyclopropyl substituent |
Publications (2)
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RU2012157958A true RU2012157958A (en) | 2014-07-10 |
RU2525549C1 RU2525549C1 (en) | 2014-08-20 |
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RU2012157958/04A RU2525549C1 (en) | 2012-12-27 | 2012-12-27 | Method of obtaining 1,3-dioxolanes, containing gem-dichlorocyclopropyl substituent |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2740557C1 (en) * | 2020-06-04 | 2021-01-15 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | Method of producing 2-(2,2-dichloro-1-phenylcyclopropyl)-1,3-dioxolane |
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RU2525549C1 (en) | 2014-08-20 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20141228 |