Hydrazine → 1,4-Phthalazinedione

HRID 37333Notes

Reaction equation

HRID 37333 reaction equation
C1([C:7]2[C:16]3[C:11](=CC=CC=3)[CH:10]=[C:9]3[C:17](O[C:20](=[O:21])[C:8]=23)=[O:18])C=CC=CC=1.[NH2:22][NH2:23]>>[C:17]1(=[O:18])[C:9]2[C:8](=[CH:7][CH:16]=[CH:11][CH:10]=2)[C:20](=[O:21])[N:23]=[N:22]1

Participants

3

Reactant 2

HCID 9321HydrazineHCID 2266661-Phenyl-2,3-naphthalenedicarboxylic anhydride

Product 1

HCID 2835931,4-Phthalazinedione

Procedure

Later it was found (F. G. Baddar, M. F. El-Newaihy and M. R. Salem, J. Chem. Soc. 838, 1969) that in the reaction of 1-phenylnaphthalene-2,3-dicarboxylic anhydride (R=H in formula (XXX)) ##STR5## with hydrazine that a mixture of the N-amino compound and the phthalazine-1,4-dione were obtained. The 4'-7-dimethoxy anhydride (R=OMe) however gave the N-amino compound.

Sources & evidence

ORD record
ord-86475dd50eab4189a5b32071ccadad3c
Source dataset
uspto-grants-1995_05
Patent number
US05420234

Reaction notes

Loading…