61378-70-9

Upstream product

• 4494-53-5 2-methyl-1,3(2H,4H)-isoquinolinedione 
• 62-53-3 aniline 
• 149-73-5 trimethyl orthoformate 
• 103-70-8 Formanilid 
• 78363-91-4 4-[1-Hydroxy-meth-(Z)-ylidene]-2-methyl-4H-isoquinoline-1,3-dione 
• 107465-41-8 4-[1-Chloro-meth-(Z)-ylidene]-2-methyl-4H-isoquinoline-1,3-dione 
• 89-51-0 Homophthalic acid 

Downstream Products

• 78364-00-8 3-Benzenesulfonyl-10-methyl-10H-1-oxa-10-aza-phenanthrene-2,9-dione 

Relevant academic research and scientific papers

Synthesis of 4-hydroxymethylene-1,3(2H,4H)-isoquinolinediones and related compounds

Vilsmeier-Haack reactions of 1,3(2H,4H)-isoquinolinediones (1a, b) with dimethylformamide and POCl3 afforded 4-hydroxymethylene-1,3(2H,4H)-isoquinolinediones (2a, b) in good yields.Similar reactions of 1a, b using formanilides instead of N,N-dimethylforma

Syntheses of Fluorescent Dyes, 10. - 2-Substituted Pyranoisoquinoline-3,6-diones and Merocyanine Dyes from Homophthalimides

The homophthalimides 1a-c were condensed with trimethoxymethane in the presence of acetic anhydride to give the enol ethers 2a-c, whereas the reaction of 1a-d with trimethoxymethane and arylamines (or N-methylurea in the case of 3c) affords the enamines 3