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Squamatic acid

Thamnolia vermicularis is an arctic-alpine, fruticose, soil-dwelling lichen that enjoys a very wide distribution. The species consists of two chemical strains, one predominantly found in the Northern Hemisphere and the other in the Southern Hemisphere, with most populations from intermediate regions exhibiting intermediate chemical types. Sato (1965) showed that the southern strain accumulates thamnolic acid [403], whereas the northern strain is characterized by two compounds, squamatic acid [404] and baeomycic acid [405]. Populations from Greenland, Novaya Zemlya, and Svalbard exhibited only the northern profile. Two populations from South America exhibited only the southern type, while collections from New Zealand showed nearly pure southern type. [Pg.223]

Cladonia crispata Squamatic acid Squamatic acid Ejiri and Shibata (1975)... [Pg.8]

Fig. 35. A Squamatic acid [from Cladonia crispata (Ach.) Plot], GE. Bar 10)im. B Tenuiorin, GE. Bar 100)im. C Thamnolic acid, saturated aqueous solution of Ba(OH)2. Bar 100 jam. D Thamnolic acid with decarboxythamnolic acid, An. Bar 100 jim... Fig. 35. A Squamatic acid [from Cladonia crispata (Ach.) Plot], GE. Bar 10)im. B Tenuiorin, GE. Bar 100)im. C Thamnolic acid, saturated aqueous solution of Ba(OH)2. Bar 100 jam. D Thamnolic acid with decarboxythamnolic acid, An. Bar 100 jim...
Deriv Dimethyl squamatate, prisms (acetone), mp 183 °C, from squamatic acid with CH,N, at 0 °C in 1 min... [Pg.298]

Ejiri H, Shibata S (1975) Squamatic acid from the mycobiont of Cladonia crispata. Phytochemistry 14 2505... [Pg.454]

The best known para-depsides are atranorin, baeomycesic acid, barbatic acid, chloroatranorin, diffractaic acid, squamatic acid and 4-(9-demethylbarbatic acid, while meta-depsides include decarboxythamnolic acid, haemathamnolic acid, hypothamnolic acid and thairmoUc acid. [Pg.11]

See other pages where Squamatic acid is mentioned: [Pg.355]    [Pg.456]    [Pg.37]    [Pg.49]    [Pg.119]    [Pg.297]    [Pg.136]    [Pg.137]    [Pg.146]    [Pg.638]    [Pg.355]    [Pg.456]    [Pg.37]    [Pg.49]    [Pg.119]    [Pg.297]    [Pg.136]    [Pg.137]    [Pg.146]    [Pg.638]   
See also in sourсe #XX -- [ Pg.297 ]

See also in sourсe #XX -- [ Pg.146 , Pg.217 ]

See also in sourсe #XX -- [ Pg.215 ]



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