153905-32-9Relevant articles and documents
APPLICATION OF THE PHOTO-FRIES REARRANGEMENT OF ARYL N-CHLOROACETYLANTHRANYLATES AS KEY STEP IN THE SYNTHESIS OF 5-(2-HYDROXYPHENYL)-1,3-DIHYDRO-2H-1,4-BENZODIAZEPIN-2-ONES
Algarra, Felipe,Miranda, Miguel A.
, p. 2335 - 2344 (2007/10/02)
Condensation of isatoic anhydride with phenols, followed by treatment of the resulting aryl anthranylates (4) with chloroacetyl chloride gives aryl N-chloroacetylanthranylates (5).Their uv-irradiation results in photo-Fries rearrangement, to afford benzophenones (6).Direct treatment of the latter with ammonia gives rise to 1,3-quinazolines (7); by contrast, treatment of 6 with potassium iodide and subsequently with ammonia leads to 1,3-dihydro-2H-1,4-benzodiazepin-2-ones (1).