FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing 4-[(2,3-epoxypropoxy)-alkyloxy]-4'-cyanoazobenzenes of general formula: 
where n=2, 3, 6, 8, 9, 10. The method involves reacting 4-(n-hydroxyalkyloxy)-4'-cyanoazobenzene of general formula: 
where n=2, 3, 6, 8, 9, 10, with epichlorohydrin and sodium ethylate, the reaction being carried out in ethanol while boiling and simultaneously exposing the reaction mass to ultrasound with frequency of 25-30 kHz for 3-4 hours.
EFFECT: 9-13 times shorter period of reaction of starting substances with epichlorohydrin, 8-10 times shorter duration of separation and purification, considerably low labour input, making the method of producing the desired compounds cheaper and 1.2-1.5 times higher output of end products.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| 4-(2,3-EPOXYPROPOXY)-4'-(2,2-DICYANOETHENYL)AZOBENZENE EXHIBITING POLYVINYL CHLORIDE LIGHT AND HEAT STABILISER PROPERTIES | 2012 |
|
RU2502728C1 |
| METHOD FOR PRODUCTION OF 4-(OMEGA-HYDROXYALKYLOXY)-4'-CYANOBYPHENYLS | 2005 |
|
RU2281937C1 |
| 4-(2,3-EPOXYPROPOXY)-4'-PROPYLOXYAZOBENZENE ELICITING PROPERTY OF LIGHT-THERMOSTABILIZING AGENT FOR POLYVINYL CHLORIDE | 2005 |
|
RU2284318C1 |
| 4-(2,3-EPOXYPROPOXY)-4'-CYANOBIPHENYL ELICITING PROPERTY OF LIGHT AND THERMAL STABILIZING AGENT OF POLYVINYL CHLORIDE | 2006 |
|
RU2313518C1 |
| 4-(2,3-EPOXYPROPOXY)PHENYL ETHER OF 4-PROPYLOXYBENZOIC ACID, EXHIBITING POLYVINYL CHLORIDE LIGHT AND HEAT STABILISER PROPERTIES | 2012 |
|
RU2485110C1 |
| DERIVATIVES 1-(4-PHENYLAZOPHENOXY) -3-AMINOPROPANOL-2 POSSESSING POTENTIAL STRESS-PROTECTING ACTIVITY | 1982 |
|
RU1031137C |
| METHOD OF PREPARING 3-ALKYL-5-(2-OXYSTRYL)ISOXAZOLE AMINO DERIVATIVES OR THEIR SALTS | 0 |
|
SU814275A3 |
| NOVEL METHOD FOR METOPROLOL PRODUCTION | 1997 |
|
RU2210565C2 |
| PROCESS FOR PREPARATION OF HYDROXYDIPRAPHENON AND ITS PHARMACOLOGIC AVAILABLE SALTS | 0 |
|
SU1627081A3 |
| METHOD OF PREPARING HYDRAZINOPYRIDAZINES | 0 |
|
SU799661A3 |
