118933-70-3

Upstream product

• 4996-22-9 4-nitrophenylglyoxal 
• 126-81-8 dimedone 

Downstream Products

• 118933-74-7 2-(4-nitrophenyl)-3-(4,4-dimethyl-6-hydroxy-6-cyclohexen-2-on-1-yl)-6,6-dimethyl-4,5,6,7-tetrahydroindol-4-one 
• 118933-85-0 1-(4-nitrophenyl)-4,4,8,8-tetramethyl-2,3,4,5,7,8,9,10-octahydropyrrolo<4,3,2-m,n>acridin-10-one 

Relevant academic research and scientific papers

A Facile Synthesis of Xanthene-1,8(2H)-dione Derivatives by Using Tetrapropylammonium Bromide as Catalyst

Several new derivatives of 9-aroyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione have been synthesized in yields varying from high to excellent by the condensation reaction of arylglyoxals with 1,3-diketones (cyclohexane-1,3-dione or dimedone) and TPAB

OCTAHYDROPYRROLOACRIDINE DERIVATIVES. 2. 1-ARYL-4,4,8,8-TETRAMETHYL-2,3,4,5,7,8,9,10-OCTAHYDROPYRROLOACRIDIN-10-ONES AND INTERMEDIATES IN THEIR SYNTHESIS

A series of 9-aroyl-3,3,6,6-tetramethyl-1,2,3,4,5,6,7,8-octahydroxanthen-1,8-diones has been prepared from arylglyoxals and dimedone in a dehydrating medium; upon heating with ammonia these compounds are converted to 1-aryl-4,4,8,8-tetramethyl-2,3,4,5,7,8,9,10-octahydropyrroloacridin-10-ones.These reactions occur via the intermediate formation of tetrahydroindole derivatives.