593-50-0Relevant articles and documents
An Efficient Synthesis of the Plant Growth Hormone 1-Triacontanol
Tran-Thi, N. H.,Falk, H.
, p. 565 - 568 (1995)
A high yield synthesis of 1-triacontanol was based on the cheap and easily available starting materials 1-octadecanol and 1,12-dodecanediol.The first one was converted to octadecanal using a phase transfer system, whereas the second one after phase transfer bromination and reaction with triphenylphosphine provided 1-hydroxy-12-triphenylphosphonium bromide.Wittig reaction of these two synthons and subsequent hydrogenation furnished the desired product. - Keywords: 1-Triacontanol: Wittig reaction; Phase transfer reaction; Plant growth hormone
SYNTHESIS OF TRIACONTAN-1-OL FROM DODECANEDIOIC ACID
Zakharkin, L. I.,Aksenova, N. P.,Guseva, V. V.,Bavrina, T. V.,Konstantinova, T. N.,Chailakhyan M. Kh.
, p. 344 - 345 (1984)
A method has been developed for obtaining triacontan-1-ol - a natural plant growth stimulator.Synthesized triacontan-1-ol has an appreciable influence on the growth and crop yield of tomatoes and on the flowering of asters.
A method for preparing high-purity triacontanol (by machine translation)
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, (2017/09/01)
A method for utilizing organic synthesis for preparing high-purity triacontanol method, which belongs to the field of organic synthesis. To provide a reliable source of raw materials, the process is simple, the yield is high purity, easy large-scale production of the method of preparing triacontanol. In order to 1, 12 - dodecanediol as raw material preparation 12 - tert butyl dimethyl siloxy lauryl alcohol, TEMPO oxidation for 12 - tert butyl dimethyl siloxy lauric aldehyde, preparation octadecyl triphenyl brominated [...], tertiary butyl dimethoxy melissane silane - 12 - ene, preparation triacontanol. The raw materials are all industrial chemistry, the process is simple, high chemical yield, high purity of the product, it is easy to industrialization and more environmentally friendly. (by machine translation)
New 19α-hydroxyursane-type triterpenes from the leaves of Meyna spinosa (= Vangueria spinosa), Rubiaceae
Rudrapaul, Prasenjit,Das, Niranjan,De, Utpal Chandra,Dinda, Biswanath
, p. 7 - 10 (2014/05/20)
Two new 19α-hydroxyursane-type triterpenes, 2α,3α, 19α,24,28-pentahydroxyurs-12-ene (1) and meyanthic acid, 3β-acetoxy-2β,19α,23-trihydroxyurs-12-en-28-oic acid (2) along with one new aliphatic ester, myricyl pentadecanoate (3) and five known compounds, 1
METHOD FOR THE PRODUCTION OF PRIMARY LONG-CHAIN ALCOHOLS
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Page/Page column 11-12, (2010/02/15)
The invention relates to a method for the production of linear long-chain alcohols with 20 to 40 carbon atoms by means of a growth reaction with ethylene on aluminium compounds.
PROCESS FOR THE PREPARATION OF ALIPHATIC PRIMARY ALCOHOLS AND RELATED INTERMEDIATES IN SUCH PROCESS
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Page/Page column 8, (2010/02/11)
The invention relates to protected alcohol with formula (R1 - O-)mPG, wherein R1 represents a linear, straight-chain alkyl group having 26-30 C-atoms, m is 1 or 2, and PG, forming an ether group in combination with the -O- of the former primary alcohol, represents a protecting group chosen from the group of substituted methyl, substituted ethyl, substituted benzyl and (substituted) silyl groups with at least one substituent on the Si-atom being not a methyl group, in case m = 1; and a diol protecting group in case m = 2, with the proviso that PG is no saccharide. The invention further relates to process for the preparation of such protected alcohols via an organometallic cross coupling reaction.
A facile synthesis of long chain acyclic alkanols via Kolbe coupling: 1-Docosanol and 1-triacontanol
Yadav, Ashok K.,Singh, Arpita
, p. 1724 - 1726 (2007/10/03)
A convenient synthesis of long chain acyclic alkanols viz., 1-docosanol and 1-triacontanol has been devised via Kolbe radical coupling of mono-methyl azelate 2, which has been synthesized from azelaic acid 1. The dimer viz. dimethyl thapsate 3, on Ba(OH)2 hydrolysis affords mono-methyl thapsate 4, which upon mixed Kolbe coupling with appropriate alkanoic acid [CH3(CH)2)nCOOH, n = 6 for 1-docosanol and n = 14 for 1-tri-acontanol] gives the cross coupled products methyl docosanoate 7 and methyl triacontanoate 8 along with the radical dimers dimethyl triacontanedioate 4′ and tetradecane 5′/triacontane 6′ as byproducts. Compounds 7 and 8 on LAH reduction in dry THF yield 1-docosanol 9 and 1- triacontanol 10, respectively in high yields. The mixed anodic coupling has been studied by varying parameters viz. degree of neutralization and molar ratio of compounds 4 and C8/C16 alkanoic acid, current density, anode material etc.
Chemical constituents of Plumbago indica roots and reactions of plumbagin: Part II
Dinda,Das,Hajra,Bhattacharya,De,Chel,Achari
, p. 577 - 582 (2007/10/03)
From Plumbago indica a new quinone derivative-plumbagic acid lactone, two flavonol methyl ethers-azaleatin (5-O-methylquercetin), ayanin (3,7,4', tri-O-methylquercetin), two aliphatics-palmitic acid, myricyl palmitate and one naphthoquinone-plumbagin have been isolated. The major constituent plumbagin has been subjected to Schmidt reaction, allylic bromination, oxymercuration and demercuration and Thiele-Winter addition. All the natural and reaction products have been characterized by spectroscopic studies.
Organoboranes for synthesis. 13. Simple, efficient syntheses of long-chain alcohols and carboxylic acids
Brown, Herbert C.,Iyer, Ramakrishnan R.,Bhat, Narayan G.,Racherla, Uday S.,Brown, Charles A.
, p. 9187 - 9194 (2007/10/02)
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.
FLAVONOIDS AND OTHER CONSTITUENTS FROM PEDALIUM MUREX
Bhakuni, Rajendra S.,Shukla, Yogendra N.,Thakur, Raghunath S.
, p. 2917 - 2918 (2007/10/02)
Two new compounds isolated from the fruits of Pedalium murex were characterized as 2',4',5'-trihydroxy-5,7-dimethoxyflavone and triacontanyl dotriacontanoate by physico-chemical methods.Luteolin, rubusic acid, nonacosane, tritriacontane, triacontanoic acid, tritriacontanoic acid and sitosterol β-D-glucoside have also been isolated and identified. Key words: Pedalium murex; Pedaliaceae; fruits; 2',4',5'-trihydroxy-5,7-dimethoxyflavone; luteolin; rubusic acid; triacontanyl dotriacontanoate; lipids.
