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1.
Khodzhaev B. U. Primukhamedov I. M. Yunusov S. Yu. 《Chemistry of Natural Compounds》1986,21(6):743-746
The amounts and compositions of the essential oils in the leaves and fruit of Meyer's lemon in the various vegetation periods have been studied. It has been established that as the fruit ripens the amount of essential oils and of monoterpene hydrocarbons in its peel and in the leaves increases.Institute of Plant Biochemistry, Academy of Sciences of the Georgian SSR. Sukhumi Zonal Experimental Station of Essential-Oil Crops. Sukhumi Experimental Station of Subtropical Crops, All-Union Institute of Plant Growing. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 784–787, November–December, 1985. 相似文献
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Information is given on methods of isolating plant pectin substances from various raw-material sources, and the conditions for obtaining high-quality pectin are discussed. 相似文献
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Solasodine (I) has been subjected to a number of transformations. The following compounds have been obtained from it by described procedures: 3-acetoxypregna-5,16-dien-20-one (II), 3-acetoxypregn-5-en-20-ol (III), and 3-acetoxypregn-5-en-20-ol (IV). The oxidation of (III) and (IV), the formation of an oxime, and the reduction of the oxime with sodium in ethanol, followed by Hess methylation, has led to 20-dimethylaminopregn-5-en-3-ol (IX) and to 20-dimethylaminopregn-5-en-3-ol (X). From compounds (IX) and (X), by analogy with (III) and (IV) by their oxidation and the preparation of oximes, which were then reduced and methylated, the following were obtained: 3,20-bisdimethylaminopregnane (XVII) and 3,20-bisdimethylaminopregnane (XVIII), and also quaternary salts of the latter.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 370–374, May–June, 1980. 相似文献
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Six new bisquaternary derivatives of cyclobuxine-D have been obtained, and their biological activities have been studied.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 40 64 75. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 742–744, September–October, 1997. 相似文献
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M. Zh. Zhumaniyazov B. M. Beglov O. F. Khodzhaev N. Kh. Yuldashev 《Russian Journal of General Chemistry》2004,74(7):1001-1004
The solubility polytherm of the ternary system hexamethylenetetramineammonium dihydrogen phosphate-water was studied in a wide temperature range. The concentration and temperature ranges of crystallization of the starting components and a new compound, NH4H2PO4·2(CH2)6N4·8H2O, were determined. The properties and structure of the new compound were studied by X-ray phase, thermal, and IR spectroscopic analyses. 相似文献
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