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Roccella fuciformis

Roccella fuciformis. Picroroccelline, C2jH2aOsN2, m.p. 192-4°, gives benzaldehyde and benzoic acid on oxidation (Stenhouse and Groves, Annalen, 1877, 185, 14). [Pg.777]

CigHigOg, Mr 362.34, prisms, mp. 158-I60°C, L. shows the following color reactions KOH yellow, KOH+NaOCl green, and FeClg red, turning green. A chromone from the lichens Lecanactis latebrarum and Roccella fuciformis. [Pg.355]

C20H22N2O4, Mr 354.41, rectangular prisms, mp. 190-220°C, [a] j +12.5°. A piperazinedione derivative with a bitter taste from the dyer s lichen Roccella fuciformis. [Pg.492]

Synonyms Angola weed Roccella fuciformis Definition Derived from Rocceiia fuciformis Uses Natural flavoring agent in alcoholic beverages... [Pg.307]

Angola weed. See Angola (Roccella fuciformis) weed... [Pg.307]

Transparent rectangular prisms (EtOH), mp 190-220, 192-194 °C, according to the rate of heating, [ajp + 12.5. (CHCI3) Deriv N,0-Dimethylpicroroccellin, lustrous, transparent, elongated prisms (EtOH), mp 229 °C, by methy-lation of picroroccellin with NaOH-dimethyl sulphate in EtOH StL Roccella fuciformis (L.) DC Lit Marcuccio and Elbe 1983, 1985... [Pg.129]

Deriv Orsellinic acid, mp 197-198 °C (acetone-HjO), from etbyl orsellinate by hydrolysis with NaOH-HjO at room temperature StL Roccella fuciformis (L.) DC. [Pg.158]

Deriv Methyl leprarate, prisms (MeOH), mp 132-133 °C, from lepraric acid with CH2N2 StL Lepraria latebrarum (Ach.) Arnold, Roccella fuciformis (L.) DC. [Pg.187]

Huneck S (1972a) 6-Hydroxymethyleugenitin, ein neues Chromon aus Roccella fuciformis. Phytochemistry 11 1489-1490... [Pg.460]

Huneck 174) isolated the new chromone 6-hydroxymethyleugenetin (124) from the lichen Roccella fuciformis. In addition the novel chromone glucosides galapagin (2), mollin (3) and roccellin (1) were isolated from Roccellaria mollis, Schismatomma accedens and Roccella galapagoensis while lobodirin (4) was isolated from Lobodirina cerebriformis 172, 175). The structure of these chromone glucosides have been discussed in Chapter 2. [Pg.128]

Hydroxymethyleugenetin, ein neues Chromon aus Roccella fuciformis. Phytochem. [Pg.226]

The lichens contain important amino acids similar to those in higher plants. Picroroccellin (1) and the cyclic tetrapeptide (2a or 2b), which yields L-prolin (3) and D-/5-amino-/5-phenylpropionic acid (4) on hydrolysis, have been isolated from Roccella fuciformis (L) Dc., R, canariensis Darb., and/ . vicentina Vain. [Pg.496]

Forster MO, Saville WB (1922) Constitution of Picroroccellin, a Diketopiperazine Derivative from Roccella fuciformis. J Chem Soc 121 816... [Pg.252]

See other pages where Roccella fuciformis is mentioned: [Pg.307]    [Pg.3846]    [Pg.5274]    [Pg.6678]    [Pg.135]    [Pg.136]    [Pg.187]    [Pg.397]    [Pg.447]    [Pg.64]    [Pg.411]    [Pg.688]    [Pg.21]   
See also in sourсe #XX -- [ Pg.2 ]

See also in sourсe #XX -- [ Pg.21 ]



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