791-34-4

Basic information

• Product Name: 5a-hydroxy-7H-isoindolo(1,2-a)(3,1)benzoxazin-1,7(5aH)-dione
• Synonyms: 5a-hydroxy-7H-isoindolo(1,2-a)(3,1)benzoxazin-1,7(5aH)-dione
• CAS NO: 791-34-4
• Molecular Weight: 267.241
• Mol File: 791-34-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 5a-hydroxy-7H-isoindolo(1,2-a)(3,1)benzoxazin-1,7(5aH)-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 5a-hydroxy-7H-isoindolo(1,2-a)(3,1)benzoxazin-1,7(5aH)-dione(791-34-4)
• EPA Substance Registry System: 5a-hydroxy-7H-isoindolo(1,2-a)(3,1)benzoxazin-1,7(5aH)-dione(791-34-4)

Safety Data

• Hazardous Substances Data: 791-34-4(Hazardous Substances Data)

Upstream product

• 85-44-9 phthalic anhydride 
• 118-92-3 anthranilic acid 

Downstream Products

• 19688-99-4 methyl 2-(1,3-dioxoisoindolin-2-yl)benzoate 

Relevant articles and documents

REACTIONS OF CYCLIC ANHYDRIDES XVI. A NOVEL APPROACH TO ANGULAR OXYGENATED PYRROLOBENZOXAZINONES

o-Carboxymaleanilic acids IIIa-g when treated with sodium acetate-acetic anhydride underwent double cyclisation leading to pyrrolobenzoxazinones Va-g carrying an angular acetate.A one-flask reaction of dimethylmaleic anhydride and phthalic anhydride with anthranilic acid furnished the angular hydroxy benzoxazinones IVh and IVi respectively, which were converted to the corresponding acetates Vh and Vi.The acetates Va, Vc, Vf, Vg and Vi underwent solvolysis to the corresponding methyl ethers (VII) on refluxing with anhydrous methanol.