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Synthesis of Phthalocyannes by Microwave Irradation Background of the Invention
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wong, Edna H. |
| Copyright Year | 2017 |
| Abstract | This invention provides a novel process for preparing Soluble phthalocyanines by microwave irradiation in the absence of any organic Solvent. Three different Starting materials, i.e. t-butylphthalic anhydride, t-butyl phthaloni trile and metal-free HPc (tetra-t-butylphthalocyanine) have been adopted, respectively. The Starting material with proper metal compound, Such as chloride or acetate were irradiated in a commercial microwave oven for a period of 1 to 30 minutes at a power of 200-900 W. This process is noted to reduce drastically reaction time of MPc formation from 8-24 hours to 10-30 minutes due to its unique heating by microwave irradiation. Sandwiched type MPc (such as Lu Pca) can be produced only through metal replacement from metal-free phthalocyanine by microwave irradiation. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://patentimages.storage.googleapis.com/21/34/59/19fc00cb83990e/US6491796.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
