PROCESS FOR PREPARING 1,2,3,9-TETRAHYDRO -9-METHYL -3-[(2-METHYL-1H-IMIDAZOL -1-YL)METHYL]-4H- CARBAZOL-4-ONE OR SALTS THEREOF OR HYDRATES THEREOF, AND INTERMEDIATE PRODUCTS OF SYNTHESIS THEREOF Russian patent published in 1995 - IPC

Abstract RU 2041876 C1

FIELD: organic chemistry. SUBSTANCE: the product is 1,2,3,9,-tetrahydro -9-methyl- (3- [(2-methyl- 1H-imidazol 1-yl) methyl]-4H-carbazol-4-one of the formula I, or salts thereof, or hydrates thereof. Reagent 1: 3-[(N-dialkylamino)methyl] -1,2,3,9-tetrahydro- 9-methyl-4H-carbazol-4-one of the formula II. Reagent 2: 2-methylimidazole. Reaction conditions: in a solvent of heating in the presence of catalytic amounts of iodine. The structure of the formulae I and II: wherein NAlk₂ is N(C₂H₅)₂ or N(CH₂)₅.. EFFECT: improved properties of the title product, 4 cl

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RU 2 041 876 C1

Authors

Lavrova L.N.

Tarasov S.Ju.

Jashunskij V.G.

Dates

1995-08-20—Published

1993-12-29—Filed