1-Vinyl-4,5,6,7-tetrahydroindole and preparation thereof

Details 1-Vinyl-4,5,6,7-tetrahydroindole and preparation thereof 1-Vinyl-4,5,6,7-tetrahydroindole and preparation thereof

1975-10-23

1978-03-07

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260566A, 424274, 526259, C07D20904

Patent

active

040779750

ABSTRACT:
The present invention relates to a novel chemical compound, viz. 1-vinyl-4,5,6,7-tetrahydroindole of the formula: ##STR1## and to a method of preparing same. In accordance with the invention, the method of preparing 1-vinyl-4,5,6,7-tetrahydroindole comprises reacting cyclohexanone oxime with acetylene at a molar ratio therebetween of 1:2-5 respectively at a temperature ranging from 70.degree. to 170.degree. C. Said reaction is effected in the presence of a basic catalyst in an amount of from 1 to 50% by weight of cyclohexanone oxime and in polar solvents or in a mixture of polar and non-polar solvents taken in a volumetric ratio to cyclohexanone oxime of 1-25:1-10 respectively. As a result of said reaction a reaction mixture is formed containing the desired product.
The desired product yield is ensured by the method of the present invention as high as 90-95%. The product requires no special purification treatment. The process is technologically simple.

REFERENCES:
patent: 3652585 (1972-03-01), Remers et al.
Dorie, Chemical Abstracts, vol. 53, 21868c (1959).

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