Patents

Methane Tank

The utility model refers to agriculture, namely to installations for processing organic sewage sludge and manure and can be used in the production of biogas and organic fertilizers.

A.P.Svintsov N.A. Stashevskaya S.L. Shambina

Method for Producing Pyrrol[2,1-a] isoquinoline derivatives

The invention relates to organic chemistry, namely the method for producing pyrro[2,1-a]isoquinoline 3-6 derivatives, where 3: R1=OCH3, R2=H, R3=Cl, R4=H; 4: R1=OCH3, R2=H, R3=Cl, R4=CH3; 5: R1=R2=R3=OC2H5, R4=H; 6: R1=R2=R3=OC2H5, R4=CH3, comprising dissolution of 6,7-dimethoxy-3,4-dihydro-1-(4-benzoyl chloride)isoquinoline or 6,7-diethoxy-3,4-dihydro-1-(3,4-diethoxybenzoyl)isoquinoline in acetonitrile and addition of 1,5-diphenyl-1-peptene-4-in-3-ona 1-(4-methylphenyl)-5-phenyl-1-peptene-4-in-3-ona and 30 mole percent of cuprous bromide, and subjecting to microwave irradiation (300 W) for 30 min at +200 °C, wherein the residue received after the end of the reaction and removal of the solvent, is crystallized from ether. Technical Result: The method for producing pyrrol[2,1-a]isoquinoline derivatives, which may have useful biological properties, was developed. 4 ex.

T.N.Borisova A.V.Varlamov Leonid Voskresenskiy Matveeva Maria Dmitrievna

Process for the preparation of 5,6-dihydropyrrolo [2,1-a] isoquinoline derivatives containing functional group in position 2

The invention pertains to a novel method for the synthesis of 5,6-dihydropyrrolo [2,1-a] isoquinoline derivatives containing a functional group in position 2. The method consists of dissolving 6,7-diethoxy-3,4-dihydro-1- (3,4-diethoxybenzoyl) isoquinoline in trifluoroethanol and adding acrolein or crotonaldehyde or cinnamaldehyde or acrylonitrile and stirring at a temperature of + 70 ° C. The residue obtained after completion of the reaction and removal of the reagents is crystallized in a mixture of ether and hexane. The proposed process allows the preparation of 2-functionally substituted 5,6-dihydropyrrolo derivatives by acrolein or crotonaldehyde or cinnamic aldehyde or acrylonitrile to 6,7-diethoxy-3,4-dihydro-1- (3,4-diethoxybenzoyl) isoquinoline in trifluoroethanol [2,1-a] isoquinolines.

T.N.Borisova L.G.Voskresenskii T.M.Chervyakova A.N.Varlamov

Process for the preparation of 5,6-dihydropyrrolo [2,1-a] isoquinoline derivatives

The invention pertains to the field of organic chemistry, more specifically to a process of the preparation of 5,6-dihydropyrrolo [2,1-a] isoquinoline 1-4 derivatives with the same structural formula. The synthesis of 5,6-dihydropyrrolo [2,1-a] isoquinoline derivatives method with a three-component reaction is proposed.

T.N.Borisova M.V.Moiseeva A.V.Varlamov L.G.Voskresenskii A.A.Titov R.S.Borisov