RU2012147376A - METHOD FOR PRODUCING 3,3-DI (METHOXICARBONIL) -1,5-DITIACYCLOalkanes - Google Patents
METHOD FOR PRODUCING 3,3-DI (METHOXICARBONIL) -1,5-DITIACYCLOalkanes Download PDFInfo
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- RU2012147376A RU2012147376A RU2012147376/04A RU2012147376A RU2012147376A RU 2012147376 A RU2012147376 A RU 2012147376A RU 2012147376/04 A RU2012147376/04 A RU 2012147376/04A RU 2012147376 A RU2012147376 A RU 2012147376A RU 2012147376 A RU2012147376 A RU 2012147376A
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- fecl
- dimethyl ether
- ethanedithiol
- malonic acid
- hydrogen sulfide
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Abstract
Способ получения 3,3-ди(метоксикарбонил)-1,5-дитиациклоалканов общей формулы (I):,Х=(СН), где n=1, 2, отличающийся тем, что формальдегид (37%) подвергают взаимодействию с сероводородом или 1,2-этандитиолом и диметиловым эфиром малоновой кислоты в присутствии катализатора FeClпри мольном соотношении СНО : сероводород : диметиловый эфир малоновой кислоты: FeCl=3:2:1:(0.03-0.07) или СНО : 1,2-этандитиол : диметиловый эфир малоновой кислоты: FeCl=2:1:1:(0.03-0.07) при комнатной температуре (~20°С) и атмосферном давлении в течение 6-9 ч в смеси растворителей хлороформ-этанол (объемн. 1:1).The method of obtaining 3,3-di (methoxycarbonyl) -1,5-dithiacycloalkanes of the general formula (I) :, X = (CH), where n = 1, 2, characterized in that formaldehyde (37%) is reacted with hydrogen sulfide or 1,2-ethanedithiol and malonic acid dimethyl ether in the presence of a FeCl catalyst at a molar ratio of CHO: hydrogen sulfide: malonic acid dimethyl ether: FeCl = 3: 2: 1: (0.03-0.07) or CHO: 1,2-ethanedithiol: malonic dimethyl ether acid: FeCl = 2: 1: 1: (0.03-0.07) at room temperature (~ 20 ° C) and atmospheric pressure for 6-9 hours in a solvent mixture of chloroform-ethanol (vol. 1: 1).
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RU2012147376/04A RU2529503C2 (en) | 2012-11-07 | 2012-11-07 | Method of obtaining3,3-di(methoxycarbonyl)-1,5-dithiacycloalkanes |
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RU2012147376/04A RU2529503C2 (en) | 2012-11-07 | 2012-11-07 | Method of obtaining3,3-di(methoxycarbonyl)-1,5-dithiacycloalkanes |
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RU2012147376A true RU2012147376A (en) | 2014-05-20 |
RU2529503C2 RU2529503C2 (en) | 2014-09-27 |
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RU2551680C2 (en) * | 2013-10-15 | 2015-05-27 | Федеральное Государственное Бюджетное Учреждение Науки Институт Нефтехимии И Катализа Ран | Method of producing disulphanyl tetracycloalkenes |
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US3705908A (en) * | 1971-06-28 | 1972-12-12 | Minnesota Mining & Mfg | Process for preparing 2-formyl-2-lower alkyl 1,3-dithiolanes and 1,3-dithianes |
SU586174A1 (en) * | 1976-04-26 | 1977-12-30 | Уфимский Нефтяной Институт | Method of preparing 1,3-dithiacycloalkanes |
RU2368607C2 (en) * | 2007-09-11 | 2009-09-27 | Институт нефтехимии и катализа РАН | Method of obtaining 1- (5-benzoyl-1,3-dithian-5-yl)-1-ethanol |
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