FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to the improved method for preparing octa-(4,5-n.-butyl)-phthalocyanine. Method is carried out by heating 4,5-di-(n.-butyl)-phthalonitrile with alkaline metal compound and the following demetallization of formed product wherein dry sodium hydroxide is used as alkaline metal compound. Heating is carried out up to temperature 200-220°C and formed melt is kept at this temperature for 10-15 min. Invention provides significant simplifying method in preparing octa-(4,5-n.-butyl)-phthalocyanine with simultaneous reducing cost and enhancing its yield by 2.15-fold.
EFFECT: improved preparing method.
2 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PREPARING PHTHALOCYANINE | 2004 |
|
RU2269533C1 |
| METHOD FOR PREPARING TETRA-(5-TERTIARY-BUTYLPYRAZINO)-PORPHYRAZINE | 2004 |
|
RU2269532C1 |
| METHOD FOR PREPARING TETRA-(4-TERTIARY-BUTYL)-PHTHALOCYANINE | 2004 |
|
RU2269531C1 |
| METHOD FOR PREPARING TETRAPYRAZINOPORPHYRAZINE | 2004 |
|
RU2269536C1 |
| METHOD FOR PREPARING TETRA-(5-TERTIARY-BUTYLPYRAZINO)-PORPHYRAZINE | 2004 |
|
RU2269535C1 |
| METHOD FOR PREPARING TETRA-(5-TERTIARY-BUTYLPYRAZINO)-PORPHYRAZINE | 2005 |
|
RU2278137C1 |
| METHOD FOR PREPARING TETRAPYRAZINO-PORPHYRAZINE | 2005 |
|
RU2278136C1 |
| METHOD FOR PREPARING TETRA-(2,3-QUINOXALINO)PORPHYRAZINE | 2004 |
|
RU2269530C1 |
| METHOD FOR PREPARING TETRA-(2,3-QUINOLINO)-PORPHYRAZINE | 2004 |
|
RU2269534C1 |
| METHOD FOR PREPARING TETRA-(2,3-QUINOXALINO)-PORPHYRAZINE | 2005 |
|
RU2278135C1 |
