80772-75-4

Upstream product

• 82-45-1 1-amino-9,10-anthracenedione 
• 100-44-7 benzyl chloride 
• 80772-74-3 spiro<1-dibenzylamino-10-anthrone-9,3'-<2>phenyloxirane> 

Downstream Products

• 133286-56-3 1-phenyl-2,6-dihydronaphth<1,2,3-cd>indol-6-one 

Relevant academic research and scientific papers

Synthesis of 2,6-Dihydronaphthindol-6-ones

The reaction of 1-aminoanthraquinone with benzyl chloride in KOH-DMSO system afforded 3,11b-dibenzyl-2-phenyl-2,3,7,11b-tetrahydroanthraoxazin-7-one (5; 78percent yield), whose structure was determined by single-crystal X-ray diffraction.The reaction of compound 5 with aluminium chloride gave 1-phenyl-2,6-dihydronaphthindol-6-one (52percent yield) having strong fluorescence.

A NEW METHOD FOR THE PREPARATION OF SUBSTITUTED PYRROLOANTHRONE

1-Benzylaminoanthraquinone reacted with benzyl chloride in the presence of powdered KOH in DMSO to give spirophenyloxirane> (1) quantitatively under a nitrogen atmosphere.The oxirane (1) was converted into 1-phenyl-2-benzylpyrroloanthracene-6-one(2) (substituted pyrroloanthrone) having strong fluorescence in ethanol by treatment with hydrochloric acid.