5-Methoxyindole

Chemical properties

white to light brownish crystalline powder

The Uses of 5-Methoxyindole

5-Methoxyindole (cas# 1006-94-6) is a compound useful in organic synthesis. It can be used to synthesis 1-(Phenylsulfonyl)-5-methoxy-1H-indole.

What are the applications of Application

5-Methoxyindole is a simple methoxy indole compound

Preparation

The synthesis of 5-methoxyindole from 5-methoxy-2-oxindole: Conversion of 5-methoxy-2-oxindole to 5-methoxyindole was accomplishedby the chlorination of 5-methoxy-2-oxindole with triphenylphosphine-carbontetrachloride in acetonitrile followed by the catalytic reduction of a chlorine atom in 66% total yield.

Definition

ChEBI: 5-methoxyindole is a member of indoles.

Reactions

5-methoxyindole was treated with sodium hydroxide and phenylsulfonyl chloride in the presence of a catalytic amount of tetrabutylammonium bromide to afford 1-(phenylsulfonyl)indole and 5-methoxy-1-(phenylsufonyl)indole in excellent yields of 100%.

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 26, p. 1405, 1989 DOI: 10.1002/jhet.5570260533
The Journal of Organic Chemistry, 58, p. 5558, 1993 DOI: 10.1021/jo00072a052
Tetrahedron Letters, 27, p. 837, 1986 DOI: 10.1016/S0040-4039(00)84114-3

Purification Methods

Crystallise 5-methoxyindole from cyclohexane pet ether or pet ether/Et2O. [Saito & Kikugawa J Heterocycl Chem 16 1325 1979, Beilstein 21 III/IV 765, 21/3 V 18.]