Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Callistephin chloride

Since a few protective groups cannot satisfy all these criteria for elaborate substrates, a large number of mutually complementary protective groups are needed and, indeed, are becoming available. In early syntheses the chemist chose a standard derivative known to be stable to the subsequent reactions. In a synthesis of callistephin chloride the phenolic —OH group in 1 was selectively protected as an acetate. In the presence of silver ion the aliphatic hydroxyl group in 2 displaced... [Pg.1]

Anthocyanins cyanidin chloride, callistephin chloride, pelargonin chloride, ideanin chloride, cyanin chloride and pelargonidin chloride (Prof. Liselotte Krenn, Vienna, Austria) were dissolved in DMSO. [Pg.136]

Write mechanism arrows for the following step in the chemical synthesis by A. Robertson and R. Robinson (/. Chem. Soc. 1928, 1455—1472) of callistephin chloride, a red flower pigment from the purple-red aster. Explain why this transformation is a reasonable process. [Pg.666]

Anthocyanins isolated from plants were studied for their possible inhibitory action on the MDR1 efflux pump. Among anthocyanins tested in this study, only cyanidin chloride showed a slight inhibition on P-gp function (Table 9). The chlorides of callistephin, pelargonin, ideanin, cyanin and pellargonidin slightly enhanced the activity of the efflux pumps. [Pg.144]


See other pages where Callistephin chloride is mentioned: [Pg.134]    [Pg.147]    [Pg.737]    [Pg.569]    [Pg.134]    [Pg.147]    [Pg.737]    [Pg.569]    [Pg.1119]    [Pg.240]   
See also in sourсe #XX -- [ Pg.569 ]




SEARCH



Callistephin

© 2024 chempedia.info