51795-88-1Relevant articles and documents
Odd-numbered very-long-chain polyunsaturated fatty acids from the dinoflagellate Amphidinium carterae identified by atmospheric pressure chemical ionization liquid chromatography-mass spectrometry
Rezanka, Tomas,Nedbalova, Linda,Sigler, Karel
, p. 2849 - 2855 (2008)
A method is described for the enrichment of odd very-long-chain polyunsaturated fatty acids (VLCPUFAs) by means of RP-HPLC and argentation TLC from total fatty acids of the dinoflagellate A. carterae and their identification as picolinyl esters by means of microbore liquid chromatography-mass spectrometry with atmospheric pressure chemical ionization (LC-MS/APCI). The combination of argentation TLC and LC-MS/APCI was used to identify rare and unusual odd VLCPUFAs up to nonacosahexaenoic acid. Two acids, (allZ)-nonacosa-11,14,17,20,23-pentaenoic acid (29:5n-6) and (allZ)-nonacosa-11,14,17,20,23,26-hexaenoic acid (29:6n-3), were synthesized for the first time to unambiguously confirm their structure. Possible biosynthetic pathways for odd VLCPUFAs are also proposed.
Synthesis of a natural insect repellent isolated from thrips
Csuk, René,Niesen, Anja,Tschuch, Gunther,Moritz, Gerald
, p. 6001 - 6004 (2004)
A convenient, high yield procedure for the synthesis of (11Z)-11,19-eicosadienyl acetate (1) has been developed. This compound shows strong repellent activity against ants.
Synthesis of (±)duryne+
Deshpande,Upadhye,Wakharkar
, p. 1991 - 1992 (1989)
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Enzymatic Desymmetrization of a Prochiral 1,3,5-Pentanetriol Derivative. Application to the Synthesis of a Cyanobacterial Heterocyst Glycolipid
Soriente, Annunziata,Laudisio, Giovanna,Giordano, Maurizio,Sodano, Guido
, p. 859 - 862 (1995)
(R)-3-t-butyldimethylsilyloxy-5-acetoxy-1-pentanol has been obtained by PFL catalyzed hydrolysis of the corresponding diacetate and has been utilized for the formal synthesis of the most widespread heterocyst glycolipid of N2-fixing cyanobacteria.
Practical Synthesis and Field Application of the Synthetic Sex Pheromone of Rice Stem Borer, Chilo suppressalis (Lepidoptera: Pyralidae)
Chien, Wei-Jynn,Gupta, Sachin,Liu, Bin,Lou, Da Wei,Shen, Yu-Jhe,Syu, Kun-Jie,Tseng, Jui-Chang,Zhang, Yuan-Xin
, (2020/03/11)
Rice stem borer, Chilo suppressalis, is a common and major serious pest of rice, maize, and wheat crops across Asia, Europe, and Oceania countries. Its sex pheromone consists of three analogously compounds, i.e., (Z)-hexadec-11-enal (1), (Z)-octadec-13-enal (2), and (Z)-hexadec-9-enal (3), as long-chain aliphatic internal cis-alkenyl aldehydes. In order to perform an economic and widespread pest control management of rice stem borer, a versatile and efficient synthetic strategy is required. A versatile and efficient synthesis using a common synthetic route for cis-alkenals with high overall yields is described. Commercially available inexpensive aliphatic diols were chosen as starting materials. Two key steps were employed to synthesize the long-chain aliphatic internal cis-alkenes in excellent yields, including the alkylation of terminal alkynes without the utilization of a highly polar aprotic cosolvent and the versatile cis-selective semihydrogenation for the reduction of internal alkynes with excellent stereoselectivity. The results of field tests showed that the synthetic sex pheromone blend was highly effective for the capture of rice stem borer.
Synthetic method of sex pheromone (Z, E) -10 - cetane compound (by machine translation)
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Paragraph 0074-0075, (2019/08/30)
The invention discloses a peach borer sex pheromone (Z. Ω - bromodecanol and dihydropyran react, hydrolyze and deprotect the corresponding acetal, acetal and trialkyl/aryl ester under the action of the catalyst to form E-type main (Z, E) -10 - hexadecene -10 - alcohol and oxidant oxidation reaction to obtain E-form main (Z, E) -1 - hexadecene/aryl ester. E) -10 - cetane/aromatic ester, under the action of a catalyst . E) is a main group E type (Z, E) n-hexylene -1 - alcohol, and the like. E) -10 - cetane dialdehyde. The method is less in side reaction, and high in product purity. (by machine translation)
