

SYNTHESIS OF 3-SUBSTITUTED TETRAHYDROINDOL-4-ONE

Abstract
A series of functionalized 4,5,6,7-tetrahydroindol-4-one derivatives containing a residue derived from β-dicarbonyl compound at position 3 were prepared by a reaction of cyclic enaminones, arylglyoxal hydrates, and β-dicarbonyl compounds. Modification of acetyl-acetone residue at position 3 of tetrahydroindoles was accomplished by condensation with 1,2- and 1,4-bisnucleophiles.
Keywords
acetylacetone; arylglyoxal hydrates; 3-[(5,5-dimethyl-3-oxocyclohex-1-en-1-yl)amino]propanoic acid; (5,5-dimethyl-3-oxocyclohex-1-en-1-yl)glycine; 4-hydroxycoumarin; tetrahydroindol-4-ones; cyclocondensation; synthesis.
Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv