FIELD: chemical industry, organic chemistry, chemical technology.
SUBSTANCE: invention relates to methods for synthesis of tetrapyrrole macroheterocyclic compounds. Method for synthesis of tetra-(5-tert.-butylpyrazino)-porphyrazine is carried out by heating 5-tert.-butyl-2,3-dicyanopyrazine to temperature 210-220°C and keeping the formed melt at this temperature for 25-35 min. Invention provides the significant simplifying and reducing cost of the method by diminishing number of technological procedures with simultaneous enhancing yield of the end product above 6 times.
EFFECT: improved preparing method.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PREPARING TETRA-(5-TERTIARY-BUTYLPYRAZINO)-PORPHYRAZINE | 2004 |
|
RU2269532C1 |
| METHOD FOR PREPARING TETRA-(5-TERTIARY-BUTYLPYRAZINO)-PORPHYRAZINE | 2004 |
|
RU2269535C1 |
| METHOD FOR PREPARING TETRAPYRAZINO-PORPHYRAZINE | 2005 |
|
RU2278136C1 |
| METHOD FOR PREPARING TETRAPYRAZINOPORPHYRAZINE | 2004 |
|
RU2269536C1 |
| METHOD FOR PREPARING TETRA-(2,3-QUINOXALINO)PORPHYRAZINE | 2004 |
|
RU2269530C1 |
| METHOD FOR PREPARING TETRA-(2,3-QUINOXALINO)-PORPHYRAZINE | 2005 |
|
RU2278135C1 |
| METHOD FOR PREPARING TETRA-(4-TERTIARY-BUTYL)-PHTHALOCYANINE | 2004 |
|
RU2269531C1 |
| METHOD FOR PREPARING TETRA-(2,3-QUINOLINO)-PORPHYRAZINE | 2004 |
|
RU2269534C1 |
| METHOD FOR PREPARING OCTA-(4,5-N-BUTYL)-PHTHALOCYANINE | 2005 |
|
RU2276153C1 |
| METHOD FOR PREPARING PHTHALOCYANINE | 2004 |
|
RU2269533C1 |
