Reference

Liquid chromatography of plant-derived phenolic compounds

Liquid chromatography of plant-derived phenolic compounds. 15. Use of general schemes for analysis in the study of products of the anodic oxidation of b-guaiacyl ethers of 1-veratrylpropanone and 1-veratrylpropanol. Gorokhova, V. G.; Babkin, V. A.; Tyukavkina, N. A.; Yanilkin, V. V.; Dudenko, L. Yu. (USSR). Khim. Drev., (4), 92-5 (Russian) 1986. CODEN: KHDRDQ. DOCUMENT TYPE: Journal CA Section: 43 (Cellulose, Lignin, Paper, and Other Wood Products) Section cross-reference(s): 25, 80 Products of anodic oxidn. of b-guaiacyl veratrylpropanone ether (I) [1835-09-2] and b-guaiacyl 1-veratrylpropyl ether (II) [1835-10-5] were extd. with hexane at 40-50°, and the phenolic fraction was analyzed by liq. chromatog. on Lichrosorb 18 [105521-84-4], whereas Me and MeO group-contg. compds. were analyzed by liq. chromatog. on Pellamidon [86510-89-6]. The oxidn. products comprised acetoveratrone [1131-62-0], 1-(3,4-dimethoxyphenyl)-1,2-propanedione [38790-05-5], a-hydroxypropylveratrone [37803-49-9], pyrocatechol [120-80-9], guaiacol [90-05-1], veratrol [91-16-7], 3,4-dimethoxybenzoic acid [93-07-2], and 3,4-dimethoxybenzaldehyde [120-14-9], as well as unreacted I and II. The results indicate that anodic oxidn. of I and II proceeds via cleavage of ether bonds.

Enzyme reduction of aromatic carboxylic acids

Enzyme reduction of aromatic carboxylic acids. Jezo, I.; Zemek, J. (Chem. Inst., Slowakischen Akad. 9028-89-1 and 121-33-5 are also occured in this study. Wiss., Bratislava CS-842 38, Czech.). Chem. Pap., 40(2), 279-81 (German) 1986. CODEN: CHPAEG. DOCUMENT TYPE: Journal CA Section: 16 (Fermentation and Bioindustrial Chemistry) Section cross-reference(s): 25 The prepn. of benzaldehyde (I) [100-52-7] and some of its methoxy derivs. via enzymic redn. of the corresponding benzoic acids is described. The reaction was catalyzed by NAD-dependent I oxidoreductase (EC 1.2.1.6) [37250-93-4] and NADP-dependent I oxidoreductase (EC 12.1.7) [9028-89-1]. The yields of I, anisaldehyde [50984-52-6], vanillin [121-33-5], veratraldehyde [120-14-9], syringaldehyde [134-96-3], 3,4,5-trimethoxybenzaldehyde [86-81-7], and crotonaldehyde [4170-30-3] were 49.6, 51.3, 54.2, 47.0, 52.4, 67.1, and 5.1%, resp. .