专利号:US-2024110196-A1 优先权日:2022-08-29 标题 :Use of multigene stacking method in synthesis of nervonic acid in brassica napus 发明人:LIU FANG; WANG PANDI; WU GANG; XIONG XIAOJUAN 权利人:OIL CROPS RES INSTITUTE CAAS 摘要:The present disclosure relates to use of a multigene stacking method in synthesis of nervonic acid in Brassica napus. The present disclosure provides a multigene co-expression plant vector, including an initial backbone of pBWA(V)BII and multiple exogenous gene expression cassettes. The present disclosure further provides two plant vectors applicable to genetic transformation, including a three-gene co-expression plant vector and a five-gene co-expression plant vector. In the present disclosure, after the three-gene co-expression plant vector and the five-gene co-expression plant vector are separately transferred into the Brassica napus, the nervonic acid (NA) with a high content is synthesized in the Brassica napus through multigene co-expression. An NA ratio can be significantly increased combined with a higher seed oil content and a greater field seed yield. The plant vector realizes efficient synthesis of NA in oil crops, obtains NA-rich seed oil, and increases an added value of edible oil.
专利号:US-2014194584-A1 优先权日:2013-01-07 标题 :Process for the synthesis of w-Unsaturated nitrile-acid/ester in which two types of cross metathesis are alternated consecutively swing process 发明人:DUBOIS JEAN-LUC; COUTURIER JEAN-LUC 权利人:ARKEMA FRANCE 摘要:The invention relates to a process for the synthesis of a monounsaturated nitrile-ester (acid) by cross metathesis starting from an unsaturated compound I comprising at least one trivalent nitrile, acid or ester functional group, characterized in that it comprises a stage in which two types of cross metathesis are alternated consecutively:n a first type of cross metathesis cm1 with an acrylic compound II chosen from acrylonitrile, acrylic acid or an acrylic ester, one of the compounds I or II comprising a nitrile functional group and the other of these compounds II or I comprising an acid or ester functional group, and a second type of cross metathesis cm2 with a light C 2 to C 4 alkene compound III, preferably with ethylene. nn The invention also relates to a process for the synthesis of an α,ω-amino ester (acid) obtained by a process comprising a stage in which the two types of cross metathesis defined above are alternated consecutively, followed by a hydrogenation stage.
专利号:WO-2024112938-A1 优先权日:2022-11-22 标题:New method for the ozonolytic synthesis of high melting dicarboxylic acids and oxo-acids 发明人:FOLEY PATRICK; YANG YONGHUA 权利人:P2 SCIENCE INC 摘要:The present disclosure pertains to improved methods of preparing high melting dicarboxylic acids or oxo-acids (e.g., carboxylic acid/aldehydes) by ozonolysis of their esters. For example, the present disclosure provides methods for preparing brassylic acid by way of the ozonolysis of erucic acid ester, the method comprising the steps of converting the erucic acid to an ester, performing ozonolysis on the ester, and converting the resulting brassylate ester product to brassylic acid.
专利号:US-6852759-B2 优先权日:2002-03-28 标 题:Process for the synthesis of trans-alkenoic acids, use thereof 发明人:GUPTA VISHWA NATH; BHARDWAJ VIKRAM; SINGH BHUPINDER; CHANDAN BAL KRISHAN; SURI KRISHAN AVTAR; SATTI NARESH KUMAR; SURI OM PARKASH; HANDA SUKHDEV SWAMI 权利人:COUNCIL SCIENT IND RES 摘要:The present invention relates to a process for the preparation of trans-alkenoic acids of general formula CH 3 —(CH 2 )n—CHâ•?(CH 2 )mCO 2 H where n=4 to 9 m=8 to 16. More particularly, the present invention relates to a process for the preparation of trans-tetracos-15-enoic acid, which is a bioactive constituent possessing dose-related hepatoprotective activity. The present invention also relates to the use thereof for hepatoprotection.
专利号:US-2023095259-A1 优先权日:2020-06-01 标 题:Synthesis of pheromone derivatives via z-selective olefin metathesis
专利号:US-2015065682-A1 优先权日:2013-08-30 标 题 :Aliphatic polyesters and copolyesters derived from natural oils and their related physical properties 发明人:NARINE SURESH; BOUZIDI LAZIZ; LI SHAOJUN; JOSE JESMY; POURFALLAH GHAZALEH 权利人:ELEVANCE RENEWABLE SCIENCES 摘要:The synthesis of certain medium and long chain ω-hydroxy esters and certain ω-hydroxy fatty acids is disclosed. Such ω-hydroxy esters and ω-hydroxy fatty acids are derived from natural oils, and their corresponding polymers were obtained by melt polycondensation. Additionally, the present effort investigates the effects of structural and molecular parameters on the thermal and mechanical properties of ω-hydroxy ester based polymers. Additionally, the present effort investigates the co-polymerization of ω-hydroxy ester based polymers.
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合成参考文献
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