Reference

Condensation of o-dialdehydes with 1,4-diphenols and g-diketones

Condensation of o-dialdehydes with 1,4-diphenols and g-diketones. Serpaud, Bernard; Lepage, Yves (Lab. Chim. Org. A, UER Sci., Limoges, Fr.). Bull. Soc. Chim. Fr., (5-6, Pt. 65869-77-4 is also in the experiment. 2), 539-42 (French) 1977. CODEN: BSCFAS. ISSN: 0037-8968. DOCUMENT TYPE: Journal CA Section: 26 (Condensed Aromatic Compounds) Section cross-reference(s): 25, 23 1,2-Benzenedicarboxaldehyde and 2,3-naphthalenedicarboxaldehyde were treated with 2,3-dihydronaphthazarone, PhCOCH2CH2COPh, and 1,4-naphthalenediol to give cyclocondensation products I (R = H, RR = benzo), II (R same as above), and III (R same as above). .

High-performance liquid chromatographic detection and quantitation of amines in must and wine

High-performance liquid chromatographic detection and quantitation of amines in must and wine. Buteau, Carole; Duitschaever, Cyriel Louis; Ashton, Gordon C.Several substances are used for example 141-43-5 and 51-67-2 which are their cas registry numbers. (Dep. Food Sci., Univ. Guelph, Guelph, ON N1G 2W1, Can.). J. Chromatogr., 284(1), 201-10 (English) 1984. CODEN: JOCRAM. ISSN: 0021-9673. DOCUMENT TYPE: Journal CA Section: 16 (Fermentation and Bioindustrial Chemistry) o-Phthaldialdehyde (I) [643-79-8] was used successfully for the derivatization of amines in red must and wine. The method involved the reaction of amines with I in the presence of mercaptoethanol followed by extn. of the derivs. with EtOAc. A reversed-phase high-performance liq. chromatog. system was developed for the sepn. of I derivs. of agmatine [306-60-5], cadaverine [462-94-2], ethanolamine [141-43-5], histamine [51-45-6], phenylethylamine [64-04-0], putrescine [110-60-1], tryptamine [61-54-1], tyramine [51-67-2], spermine [71-44-3] and spermidine [124-20-9] within 40 min. .