Biphasic Synthesis
โ Scribed by P. J. Dyson
- Publisher
- John Wiley and Sons
- Year
- 2004
- Weight
- 7 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0931-7597
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๐ SIMILAR VOLUMES
An unusual synthesis of porphyrin has been developed using a novel biphasic solvent system. Under optimized conditions reproducible yields of pure porphyrin of over 15% can be easily obtained in about two hours from the acid-catalysed condensation of 2-hydroxymethylpyrrole in a solvent consisting of
OSCAPINE, an isoquinoline alkaloid of opium, N is an antitussive agent which depresses the medullary centers and suppresses the cough reflex. Pharmacological and clinical investigations have confirmed the value of noscapine as a potent nonaddictive cough suppressant (I). Despite the antiquity of th