Angelic acid

Alkannin occurs in the roots of the plant as the alkah-sensitive ester of angelic acid (62). It may be extracted from the roots by using boiling light petroleum ether. Treatment of this extract with dilute sodium hydroxide gives a blue solution from which the dye is precipitated by the addition of acid. The cmde product is purified by vacuum sublimation (63). Its stmcture (11) is a hydroxylated naphthoquinone with a long, unsaturated side chain (64,65) it has the (3)-configuration. [Pg.398]

Angelic acid [565-63-9] M 100.1, m 45", pK 4.29. Steam distd, then crystd from H2O. [Pg.113]

Anagyris foetida, 116, 140 Analgesics, synthetic, 263, 265 Anamirta paniculata, 349 Anatahine, 35, 43, 46 Anchusa officinalis, 771 Andira spp., 631 Andirine, 631 Angelic acid, 604 Angeiine, 631... [Pg.784]

These two acids, of the formula C HgO, are geometrical isomerides. They are both unsaturated, and belong to the aci-ylic acid series. Tiglic acid forms crystals melting at 64 5 and boiling at 198 5 , whilst angelic acid melts at 45° to 46° and boils at 185°. They have the following constitutions —... [Pg.296]

It is known that vinylic carbanions can maintain configuration, so that SeI mechanisms should produce retention there. This has been found to be the case. For example, rrans-2-bromo-2-butene was converted to 64-74% angelic acid ... [Pg.766]

No geometrical isomerisation of tiglic acid to angelic acid, or vice versa, accompanied hydrogenation... [Pg.223]

Angelic acid, physical properties, 5 35t Angilol, molecular formula and structure, 5 93t... [Pg.55]

Methyl-cis-2-butenoic (angelic) acid, physical properties, 5 35t Methylclothiazide, molecular formula and structure, 5 162t Methylcobalamin, 25 804 Methylcyclohexanediamine, physical properties of, 2 500t... [Pg.577]

Sonobe, H., Kamps, L.R., Mazzola, E.P., and Roach, J.A.G. Isolation and identification of a new conjugated carbofuran metabolite in carrots angelic acid ester of 3-hydroxycarbofuran, /. Agric. Food Chem., 29(6) 1125-1129, 1981. [Pg.1726]

Cunninghamella blakesleana affords the 7/3-hydroxy-, 16a-hydroxy-, 16,17-dihydroxy-, and 7/3,16a-dihydroxy-derivatives. The angelic acid ester of ent-15/3-hydroxykaur-16-en-19-oic acid (73) and its 16,17-epoxide (perymenic acid) have been obtained from Perymenium ecuadoricum (Compositae). A group of... [Pg.133]

Esters of benzenoid and monoterpenic acids and alcohols as well as unsaturated carboxylic acids such as tiglic acid 142 and angelic acid 143 (Structure 4.43) are found in essential oils [60, 61]. [Pg.65]

Blumea lacera (Bunn, f.) DC Hong Tu Cao (leaf) Carotene, coniferyl alcohol, angelic acid, vitamin C, cineole, citral, fenchone, camphor.48 56 Insectifuge, vermifuge, treat cholera, eczema, fever, itch, scurvy. [Pg.41]

Matricaria chamomilla L. Yang Gan Jiu (Matricary) (flower head, leaf) Volatile oil, azulene, isoamyl, isobutyl, angelic acid, tiglic acid, anthelmic acid, tannins, malic acid.77 Carminative, diaphoretic. [Pg.109]

Azetidinones are also formed on photolysis of cis-a-phenyl-cinnamanilide (361), but in addition a small quantity of a cis-trans mixture of 3,4-diphenyl-3,4-dihydroquinolin-2-one (362) was obtained. The yield of quinolinone was considerably increased in the photocyclization of alkyl-substituted acrylanilides.389 The anilide (363) of tiglic acid, for example, was converted into the anilide (364) of angelic acid by photochemical cis-trans isomerism, and into a mixture of cis- and [Pg.103]

Amyl bromides, b322, b323 Amyl chloride, cl91 Amyl iodide, i47 Amyl mercaptan, p35 Amyl methyl ketone, hi 5 Anethole, m97 Angelic acid, ml62... [Pg.107]

Figure 5.62). Several of these hydroxyls are ester-ifled with aliphatic acids, e.g. acetic, tiglic, and angelic acids. [Pg.225]

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