- NON-ALKALOIDAL CONSTITUENTS FROM SOLANIUM TORVUM LEAVES
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Three new compounds A, B and C, isolated from the leaves of Solanum torvum have been characterized as 2,3,4-trimethyltriacontane, octacosanyl tricontanoate and 5-hexatricontanone by spectral data and chemical studies.Tricontanol, 3-tricontanone, tetratricontanoic acid, sitosterol, stigmasterol and campesterol have olso been isolated and identified.Key Word Index:Solanum torvum; Solanaceae; leaves; 2,3,4-trimethyltriacontane; octacosanyl triacontanoate; 5-hexatriacontanone; triacontanol; 3-triacontanone; tetratriacontanoic acid; sitosterol; stigmasterol; campesterol
- Mahmood, Umar,Shukla, Yogendra N.,Thakur, Raghunath S.
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- ALIPHATIC HYDROXYKETONES AND DIOSGENIN FROM COSTUS SPECIOSUS ROOTS
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Two new compounds, B and C, isolated from the roots of Costus speciosus have been characterized as 24-hydroxyhentriacontan-27-one and 24-hydroxytriacontan-26-one by spectral data and checical studies.Methyl triacontanoate, diosgenin and sitosterol have also been isolated and identified. - Key word: Costus speciosus; Costaceae; roots; 24-hydroxytriacontan-26-one; 24-hydroxyhentriacontan-27-one; methyl triacontanoate; diosgenin; sitosterol
- Gupta, Madan M.,Lal, Ram N.,Shukla, Yogendra N.
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- New steroidal glycoside ester and aliphatic acid from the fruits of Lycium Chinense
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Two new compounds stigmast-5-en-3β-ol-3-O-β-D-(2′-n- triacontanoyl) glucopyranoside (1) and 19,21-dimethyl triacont-17,22,24,26,28- pentaene-1-oic acid (2), along with the three known compounds n-tetracosanyl octadec-9-enoate (3), β-sitosterol, and β-sito
- Jung, Woo-Suk,Chung, Ill-Min,Ali, Mohd,Ahmad, Ateeque
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experimental part
p. 301 - 307
(2012/08/28)
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- Cetyl triacontanoate and other constituents from Acacia jacquemontii and Kigelia pinnata
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Leaves of Acacia jacquemontii on chemical investigation afforded a new aliphatic ester - cetyl triacontanoate along with n-triacontanol, n-octacosanol, β-sitosterol and stigmasterol while the heart wood of Kigelia pinnata gave lapachol, dehydro-α-lapachone, tecomaquinone-I, D-sesamin, paulownin, wodeshiol (kigeliol), klgelinone, β-sitosterol and stigmasterol on reinvestigation. The structures of isolated compounds were ascertained using various spectral (IR, 1H, 13C NMR, MS) techniques.
- Singh, Pahup,Khandelwal, Poonam,Sharma, Kuldeep K.,Sharma
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body text
p. 1403 - 1407
(2011/09/20)
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- Lupeol ester from Clerodendrum phlomidis L.
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A new triterpene ester, together with tetratriacontanol and 24β-ethylcholesta-5,22E,25-triene-3β-ol, has been isolated from the aerial parts of Clerodendrum phlomidis L. Occurrence of a triterpene fatty acid ester lup-20(29)-en-3-triacontanoate in this plant is of taxonomic importance. Structures of all the isolated compounds have been established by spectroscopic and chemical studies.
- Pandey,Kaur,Malasoni,Gupta
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p. 470 - 472
(2008/09/21)
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- Organoboranes for synthesis. 13. Simple, efficient syntheses of long-chain alcohols and carboxylic acids
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General, convenient and simple syntheses of long straight chain alcohols and carboxylic acids were developed utilizing organoborane chemistry. One of the methods entails the thermal isomerization of long-chain alkyldicyclohexylboranes, followed by oxidation. An alternative procedure for the preparation of long-chain alcohols involves the KAPA isomerization of internal alkynes to the terminal derivative, followed by dihydroboration with 9-BBN and oxidation. Alternatively, the terminal alkyne can be oxidised directly to the carboxylic acid. In another strategy, the C30-alcohol triaxontanol was prepared by employing high pressure carbonylation of a borane intermediate.
- Brown, Herbert C.,Iyer, Ramakrishnan R.,Bhat, Narayan G.,Racherla, Uday S.,Brown, Charles A.
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p. 9187 - 9194
(2007/10/02)
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- OZONOLYSIS OF ALKENES AND REACTIONS OF POLYFUNCTIONAL COMPOUNDS XLI. SYNTHESIS OF OXYGEN-CONTAINING DERIVATIVES OF TRIACONTANE
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Triacontanoic acid, its ester, triacontan-1-ol, and also their 12-Z-unsaturated analogs were synthetized on the basis of methyl 12-oxododecenoate, which is the product from ozonolysis of cyclododecene.
- Odinokov, V. N.,Akhmetova, V. R.,Khasanov, Kh. D.,Abduvakhabov, A. A.,Tolstikov, G. A.
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p. 1209 - 1210
(2007/10/02)
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- Method for treating and preventing bacterial infections
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A method for treating and preventing bacterial infections which comprises administering a 6-O-acylmuramyl depeptide of the formula: STR1 wherein X represents a divalent residual group of an amino acid such as L-alanine, L-serine, L-valine, etc., Y represents a residual group of a middle to higher fatty acid having 10 to 60 carbon atoms and isoGln represents a residual group of isoglutamine, or a pharmaceutical composition containing a 6-O-acylmuramyl dipeptide of the formula(I) as an active ingredient to a patient afflicted therewith.
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- Constituents from Salmalia malabaricum
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The phytochemical investigation of the root of Salmalia malabaricum has resulted in the isolation and identification of n-triacontanol, β-sitosterol, and a new glycoside which was characterized as 5,7,3',4'-tetrahydroxy-6-methoxyflavan-3-O-β-D-glucopyranosyl-α-D-xylopyranoside on the basis of spectral and degradative studies.
- Chauhan, J. S.,Sultan, M.,Srivastava, S. K.
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p. 328 - 330
(2007/10/02)
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- Preparation of long-chain carboxylic acids and alcohols
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The process for the preparation of long-chain carboxylic acids which can be readily converted to alcohols. Shorter chain acids are converted to the acid chloride which may be further purified. The acid chloride is mixed with an enamine and a hindered tertiary amine in an organic solvent and then acidified to form the beta-diketone after washing the organic phase and removal of the solvent. The beta-diketone is reacted with an inorganic hydroxide or alkali metal alkoxide and acidified to produce the keto acid which can be readily converted to the respective aliphatic acid and alcohol.
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