Rm. Fikry et al., SYNTHESIS AND REACTIONS OF MINO-4-ARYL-5,6,7,8-TETRABROMO-1(2H)-PHTHALAZINONE DERIVATIVES, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 33(8), 1994, pp. 742-746
ino-4-aryl-5,6,7,8-tetrabromo-1(2H)-phthalazinones (3a-c) have been pr
epared via the interaction of benzoxazones (2a-c) with, hydrazine hydr
ate in boiling pyridine. The reaction of 3a with carbon disulphide and
hydrazine hydrate in the presence of liquid ammonia gives 2-thiosemic
arbazide phthalazinone derivative 4. Also, the reaction of 3a separate
ly with phenyl isothiocyanate, chloroacetyl chloride and alpha-chloroa
cetanilide gives the corresponding N-phenylaminocarbothiamido-, alpha-
chloroacetamido, and N-phenylcarbamoylmcthylaminophthalazinones (6, 9,
11). The biological activity of some compounds has been described.