FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to the field of organic synthesis, namely, to method of synthesis of 3,5-dimethyl-2-ethylpyridine that can be used in synthesis of corrosion inhibitors and medicinal preparations. Method if based on heterocyclization reaction of allylamine by palladium chloride as catalyst in the mole ratio [PdCl2] : [allylamine] = [0.01-0.005] : 1, respectively. Reaction is carried out at temperature 140-160 C for 6-9 h. The yield of end product is 69%. Method differs from the known ones by the more yield of end product, more mild reaction conditions and high selectivity of process. EFFECT: improved method of synthesis, increased yield of product. 1 cl, 3 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF PREPARING 5,5'-(OXYDI)PENTAN-2-ONE | 2000 |
|
RU2197466C2 |
METHOD OF SYNTHESIS OF 1-CHLOROADAMANTANE, 1- AND 4-CHLORODIAMANTANES | 2000 |
|
RU2185364C1 |
METHOD OF PREPARING 5-ALKOXYPENTANONES-2 | 1999 |
|
RU2171797C2 |
METHOD OF PREPARING 1-CHLOROADAMANTAN-4-ON | 2000 |
|
RU2197468C2 |
METHOD OF SYNTHESIS OF HEXACHLOROETHANE | 2001 |
|
RU2185365C1 |
METHOD FOR JOINT PRODUCTION OF E3,E8-DIMETHYL-TRANS-BICYCLO[4,4,0]DECANE AND E3,E9- DIMETHYL-TRANS-BICYCLO[4,4,0]DECANE | 2000 |
|
RU2188813C2 |
METHOD OF PREPARING 1-CHLORO-3-ACETYL- AND 1-CHLORO-1,3-DIACETYLADAMANTANES | 2000 |
|
RU2197467C2 |
METHOD OF SYNTHESIS OF 1,3-DICHLOROADAMANTANE | 2000 |
|
RU2178401C2 |
METHOD OF PREPARING 1-ADAMANTYLALKYL ETHERS | 1998 |
|
RU2145593C1 |
METHOD OF PREPARING ISOPRENOIDE DERIVATIVES OF 2,3,5-TRIMETHYL-1,4- BENZOQUINONE | 2000 |
|
RU2197469C2 |
Authors
Dates
2003-03-10—Published
2001-04-13—Filed