1(2H)-Phthalazinone [ 119-39-1 ]
- Appearance
- Off-white to pale yellow crystalline powder
- Melting Point
- 183-185 ( ℃ )
- Boiling Point
- 209.9 ( ℃ )
Chemical properties needle crystal (water). Have ketone type and hydroxyl type, with ketone type structure is given priority to, sublimation income in leng shape crystallization, melting point 183-184 ℃, boiling point, section 337 ℃, soluble in water.
Use hydrazine benzene DaQin HCL intermediates.
Production methods available in alkaline conditions with naphthalene, potassium permanganate oxidation generating - alpha carboxyl acetophenone acid, then with dimethylsulfate hydrazine cyclization 1-4 - work hydroxyl phthalocyanine carboxylic acid, the latter by high temperature decarboxylation (eliminate) made the goods.
Use hydrazine benzene DaQin HCL intermediates.
Production methods available in alkaline conditions with naphthalene, potassium permanganate oxidation generating - alpha carboxyl acetophenone acid, then with dimethylsulfate hydrazine cyclization 1-4 - work hydroxyl phthalocyanine carboxylic acid, the latter by high temperature decarboxylation (eliminate) made the goods.