Reference

Chemiluminescence in liquid phase oxidation of intermediates in vitamin A and E production

Chemiluminescence in liquid phase oxidation of intermediates in vitamin A and E production. Pletneva, S. D.; Savin, N. A.; Bondareva, V. A. (Belgorod. Fil., Vses. Nauchno-Issled. Vitamin. Inst., Belgorod, USSR). Khim.-Farm. Zh., 18(8), 987-90 (Russian) 1984. CODEN: KHFZAN. ISSN: 0023-1134. DOCUMENT TYPE: Journal CA Section: 63 (Pharmaceuticals) Section cross-reference(s): 22 The chemiluminescence in liq. phase oxidn. of 3-methyl-2-penten-4-ynol [105-29-3], 3-methylpent-4-en-1-yn-3-ol (I) [3230-69-1], a b-aldehyde (II) [3155-71-3], pseudoionone (III) [141-10-6], 2,6,10-trimethyldodec-11-yn-10-ol (IV) [1604-35-9], 2,6,10,14-tetramethylhexadec-15-yn-14-ol (V) [29171-23-1], and 2,6,10-trimethylpentadeca-10,12-dien-14-one [1604-32-6] (intermediate in vitamin A [11103-57-4] and vitamin E [1406-18-4] manuf.) was investigated. The effect of antioxidants, ionol [128-37-0], hydroquinone [123-31-9], diaphen NN [93-46-9], and Neozone D [135-88-6] on chemiluminescence was also investigated. I has significant chemiluminescence properties and is oxidizable. Oxidn. and polymn. of III, IV and V at 90-140° showed that ionol, hydroquinone and diaphen NN did not inhibit the reactions.

Quality evaluation of 2Z,7E-3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,7-nonadien- 4-yn-1,6-diol

Quality evaluation of 2Z,7E-3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,7-nonadien- 4-yn-1,6-diol. Staroverov, V. M.; Gusarov, A. N.; Polovinko, E. V.; Romanenko, V. P. (Vses. Nauchno-Issled. Vitam. Inst., Belgorod, USSR). Khim.-Farm. Zh., 18(1), 92-5 (Russian) 1984. CODEN: KHFZAN. ISSN: 0023-1134. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) 2Z,7E,3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,7-nonadie n-4-yne-1,6-diol (I) [50895-68-6], an intermediate in the synthesis of vitamin A, was detd. by both gas chromatog. and UV spectrometry at 220-240 nm. The error was <3%. Since the absorbance of the starting material impurities, Z-3-methyl-2-penten-4-yn-1-ol [6153-05-5] and 2-methyl-4-(1,1,3-trimethyl-2-cyclohexen-2-yl)-2-butenal [3155-71-3], overlapped that of I, spectrometry could not be used. I was then detd. by gas chromatog. of its trimethylsilyl deriv. 6153-05-5 and 3155-71-3 are just another two chemicals used in this study. with di-Bu phthalate as internal std. and a stationary phase of 3% OV-225 on Chromaton with flame-ionization detection. .