40642-43-1Relevant articles and documents
Method for synthesizing cis-7-tetradecenol acetate which is main component of sex pheromone of holcocerus vicarius walker
-
, (2016/12/16)
The invention discloses a method for synthesizing cis-7- tetradecenol acetate which is a main component of sex pheromone of holcocerus vicarius walker. The method includes (1), preparing (7-bromo-heptyl-1-)-2-tetrahydropyran ether; (2), preparing (7-bromo
Simple syntheses of (Z)-7-dodecen-1-ol, (Z)-7-tetradecen-1-yl acetate, (Z)-9-tetradecenal and (Z)-9-hexadecen-1-yl acetate from aleuritic acid
Majee
, p. 1435 - 1438 (2013/02/23)
Insect sex pheromones are used for monitoring and management of crop pests. Four compounds (Z)-7-dodecen-1-ol, (Z)-7-tetradecen-1-yl acetate, (Z)-9-tetradecenal and (Z)-9-hexadecen-1-yl acetate reported as components of some important agricultural insect pests have been synthesized from theo-aleuritic acid (9,10,16-trihydroxyhexadecanoic acid) involving simplified Wittig reactions with improved yield.
Synthesis of highly enantioenriched hydroxy- and dihydroxy-fatty esters: Substrate precursors for cytochrome P450BioI
Singh, Arti A.,Zulkifli, Siti N.A.,Meyns, Michaela,Hayes, Patricia Y.,De Voss, James J.
, p. 1709 - 1719 (2012/02/06)
A series of highly enantioenriched hydroxy- and dihydroxy-fatty esters were required as part of our ongoing investigation into cytochrome P450 BioI. This mediates the biosynthesis of pimelic acid via C-C bond cleavage of long chain fatty acids within Bacillus subtilis. Herein we report the synthesis of various stereoisomers of methyl 7-hydroxytetradecanoate, methyl 8-hydroxytetradecanoate, and methyl 7,8-dihydroxytetradecanoate in highly enantioenriched form, using a combination of asymmetric synthesis and a preparative enantioselective HPLC is reported.
Synthesis of carboxymethyl GLA-60 ether derivatives containing an olefin in their chains and their LPS-antagonistic activities
Nakamura, Tsuyoshi,Watanabe, Yukiko,Shiozaki, Masao,Kanai, Saori,Kurakata, Shin-ichi
, p. 1011 - 1022 (2007/10/03)
Anomeric carboxymethyl GLA-60 olefine derivatives having ether chains instead of ester chains in their side chains were synthesized and their biological activities toward both human U937 cells and mouse PEC-macrophage cells were measured. The species-specific behavior of these compounds in humans (LPS-antagonistic) and mice (very weak LPS-antagonistic, but almost inactive) found this time was different from that in humans (LPS-antagonistic) and mice (endotoxic) found in the biosynthetic precursor of lipid A, such as lipid IVa. However, this fact also shows, interestingly enough, that a difference exists in the molecular recognition between human and mouse LPS receptors.
B-5354a, b and c, new sphingosine kinase inhibitors, produced by a marine bacterium; taxonomy, fermentation, isolation, physico-chemical properties and structure determination
Kono,Tanaka,Mizuno,Kodama,Ogita,Kohama
, p. 753 - 758 (2007/10/03)
In the course of our screening for inhibitors of sphingosine kinase, we found a series of active compounds in a culture broth of a novel marine bacterium, SANK 71896. The structures of the compounds, named B-5354a, b and c, were elucidated by a combination of spectroscopic analyses to be new esters of 4-amino-3-hydroxybenzoic acid with long-chain unsaturated alcohols. B-5354a, b and c inhibit sphingosine kinase activity with IC50 values of 21, 58 and 38 υM, respectively.
Sex pheromone of female vine bud moth, Theresimima ampellophaga comprises (2s)-butyl (7z)-tetradecenoate
Subchev,Harizanov,Francke,Franke,Plass,Reckziegel,Schroeder,Pickett,Wadhams,Woodcock
, p. 1141 - 1151 (2007/10/03)
The sex pheromone of the vine bud moth, Theresimima ampellophaga, released at the 3rd-5th abdominal tergites, was identified by coupled GC-EAG, GC-MS, and synthesis as (2S)-butyl (7Z)-tetradecenoate. For the first time, full stereochemistry is unambiguously defined for the sex pheromone of a member of the Zygaenidae. The synthetic compound caught significant numbers of males in field-trapping experiments.
SYNTHESIS OF (Z)-7-TETRADECENYL ACETATE AND SEC.BUTYL (Z)-7-TETRADECENOATE FROM ALEURITIC ACID.
Subramanian, G. B. V.,Sharma, Rajiv
, p. 1197 - 1202 (2007/10/02)
Aleuritic acid (3), after acetylation, was oxidatively decarboxylated and then phase transfer oxidation of the terminal olefin gave 7,8,14-trihydroxytetradecanoic acid.Simple conventional methods led to the synthesis of titled pheromones.
Pheromones via Organoboranes. 3. Vinylic Organoboranes. 10. Stereospecific Synthesis of (Z)- and (E)-6- and -7-Alken-1-ols via Boracyclanes
Brown, Herbert C.,Basavaiah, Deevi,Singh, Shankar M.,Bhat, Narayan G.
, p. 246 - 250 (2007/10/02)
Treatment of B-(E)-1-alkenylborinanes, obtained via monohydroboration of 1-alkynes with borinane, with iodine in the presence of a base results in the migration of one end of the cycloalkyl chain from boron to the adjacent carbon, producing intermediates containing the seven-membered borepane moiety, which undergo rapid deiodoboronation to afford the (Z)-6-alkenyl-1-boronate esters.These boronate esters, upon oxidation, provide (Z)-6-alken-1-ols.The procedure is successfully extended to B-(E)-7-alkenylborepane derivatives to produce (Z)-7-alken-1-ols.The preparationof (E)-6- and -7-alken-1-ols has been carried out via borinane and borepane derivatives.Borinane, as prepared previously, hydroborates cleanly 1-bromo-1-alkynes to provide the B-((Z)-1-bromo-1-alkenyl)borinanes.Treatment of these boron intermediates with sodium methoxide results in the displacement of bromine by one end of the boracycloalkyl moiety, producing the corresponding vinylboranes containing the seven-membered borepane moiety.The intermediates, upon controlled protonolysis, followed by oxidation, afford the (E)-6-alken-1-ols.The methodology was extended to borepane derivatives to provide (E)-7-alken-1-ols.The above procedures constitute a simple, very convenient, stereospecific, and general one-pot synthesis of (Z)- and (E)-6- and -7-alken-1-ols.The methodology has been applied to the synthesis of representative pheromones containing a (Z)- or an (E)-alkene moiety in good yields.