Photochemical Reaction of 4-Hydroxy-diphenylamine with Polychloromethane
نویسندگان
چکیده
منابع مشابه
The diphenylamine reaction of human serum.
In the course of investigating differences between the sera of patients suffering from malignant tumors and apparently well persons, it was found that the addition of the diphenylamine reagent (1, 2) to certain fractions of human serum resulted in the production of a purple color whose intensity varied in different individuals. We wish to make a preliminary report on our observations concerning...
متن کاملThe Purple Color Reaction given by Diphenylamine
Niazi and State (1) recently reported that when human serum was heated with the diphenylamine reagent of Dische (2, 3) a purple color developed. They also observed that in certain disease states, e.g., carcinoma, pulmonary tuberculosis and rheumatic fever, the purple color reaction was of considerably greater intensity than in the serum of normal persons. We observed this color reaction when te...
متن کاملSerum diphenylamine reaction in rheumatoid arthritis.
Normal human serum in contact with Dische's diphenylamine reagent produces a reddish-purple colour; this is increased in such conditions as cancer, pulmonary tuberculosis, and rheumatic fever (Niazi and State, 1948). According to Coburn and others (1953) and Coburn and Haninger (1954), connective tissue is a rich source of the diphenylamine-reactive substance, the concentration of which in the ...
متن کاملDiphenylamine reaction in chronic joint diseases.
Niazi and State (1948) found that protein-free precipitate of plasma or serum heated in a boiling water bath with Dische's diphenylamine reagent gave a dark purple colour in certain diseases, especially in malignancy and inflammatory diseases, such as rheumatoid arthritis, rheumatic fever, subacute bacterial endocarditis, empyema, and tuberculosis (Dische, 1929, 1930). The value of this dipheny...
متن کاملHydroxy-group effect on the regioselectivity in a photochemical oxetane formation reaction (the Paternò-Büchi Reaction) of geraniol derivatives.
The Paternò-Büchi (PB) reaction of geraniol derivatives 1, which contain allylic alcohol functionality and unfunctionalized double bonds, with benzophenone was investigated to see the effect of the hydroxyl group on the regioselectivity of the oxetane formation, i.e., 2/3. At low concentration of geraniol (1a), oxetanes 2a and 3a were formed in a ratio of 2a/3a = ca. 50/50. The oxetane 2a is de...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1982
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.55.3533