Reference

Volatile components of African mango

Volatile components of African mango. Sakho, M.; Crouzet, J.; Seck, S. (Cent. Genie Technol. Aliment., Univ. Sci. Tech. Languedoc, Montpellier F 34060, Fr.). J. Food Sci., 50(2), 548-50 (English) 1985. CODEN: JFDSAZ. ISSN: 0022-1147. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) Volatile components of African mango were isolated by vacuum distn. and fractionation on silica gel or by trapping using gas chromatog. Anal. by combined gas chromatog.-mass spectroscopy led to several compds. identified for the first time. Presence in the ext. of isolongifolene [1135-66-6], eremophilene [10219-75-7] (17%), and components related to bicyclogermacrene showed the variability of the volatile fraction of mango varieties. Some of these compds., as well as D3-carene [13466-78-9], may be typical of local varieties. The African mango studied is also characterized by presence of free HOAc [64-19-7] (0.7%), PrCO2H [107-92-6] (6%), and hexanoic acid [142-62-1] (5%), and of Et 3-hydroxybutyrate [5405-41-4] (5%). These compds. are part of the contribution of lipid metab. to aroma of mango fruit.

Method for preparing catalyst component for olefin polymerization

All Rights Reserved. Method for preparing catalyst component for olefin polymerization. Gao, Mingzhi; Liu, Haitao; Ma, Jing; Li, Jiyu; Li, Xianzhong; Wang, Jun; Ding, Chunmin; Liu, Kunzheng (China Petroleum and Chemical Corporation, Peop. Rep. China). Faming Zhuanli Shenqing Gongkai Shuomingshu CN 1891722 A 10 Jan 2007, 23pp. (Chinese). (People's Republic of China). CODEN: CNXXEV. APPLICATION: CN 2010-82916 7 Jul 2005. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 67 The method comprises the steps of: (1) dissolving Mg compd. in solvent; and (2) reacting with TiXn(OR)4-n(where R=C1-20 alkyl, X=halogen, n=1-4), at the same time introducing at least two electron donating compd. A and B, wherein A is selected from diester compd. contg. benzoate, and B is selected from binary aliph. carboxylate or arom. carboxylate or 1,3-diether compd. Thus, 4.8 g magnesium chloride, 4 mL epichlorohydrin, 12. 182121-12-6 which is the cas registry number of one of substances is just one of reagents here.5 mL tri-Bu phosphate, 0.7 mmol Et 3-benzoyloxybutanoate, 1.4 g phthalic anhydride, 56 mL titanium tetrachloride, and 6 mmol diisobutyl phthalate were stirred at 50-100° for 6 h, washed with toluene and hexane to give a title catalyst component. .