顺式-5-二十碳烯酸 | 7050-07-9

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 顺式-5-二十碳烯酸
• 英文名称: 5-eicosenoic acid (cis)
• 英文别名: (Z)-Eicos-5-enoic acid；(Z)-icos-5-enoic acid；5(Z)-eicosaenoic acid；(5Z)-eicosenoic acid；5(Z)-eicosenoic acid；Z-5-eicosenoic acid；5Z-eicosenoic acid
• CAS: 7050-07-9
• 化学式: C₂₀H₃₈O₂
• 分子量: 310.521
• InChiKey: FPAQLJHSZVFKES-NXVVXOECSA-N

物化性质

• 熔点：
  20.02°C (estimate)
• 沸点：
  419.84°C (estimate)
• 密度：
  0.8993 (rough estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  8.4
• 重原子数：
  22
• 可旋转键数：
  17
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.85
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  顺式-5-二十碳烯酸 在 对甲苯磺酸 N-溴代丁二酰亚胺(NBS) 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 生成 (5R,6R)-6-Bromo-5-hydroxy-icosanoic acid methyl ester
  参考文献：
  名称：

  Structural analogs of leukotrienes C and D and their contractile activities.

  摘要：

  合成了13种白三烯C和D的结构类似物，并测试了它们在豚鼠肺实质条上的收缩活性。这些类似物在肽部分、5-羟基、羧基以及乙烯键的数量和几何形状上与原有结构有所不同。去氨基白三烯C4（LTC4）和白三烯D4（LTD4）的类似物保留了显著的收缩活性。LTD4的酰胺类似物和5-O-甲基-LTC4显示出一定的活性。对肽部分的改造导致活性的降低达到1-3个数量级。各种乙烯键被饱和后得到的类似物则保留了显著的收缩活性。然而，全氢化LTD完全没有收缩活性。

  DOI：

  10.1248/cpb.30.2453
• 作为产物：
  描述：

  溴代十五烷 在 氢氧化钾 、 sodium tetrahydroborate 、 正丁基锂 、 甲酸 、 双氧水 、 臭氧 、 三氟乙酸酐 作用下， 以 四氢呋喃 、 水 、 二甲基亚砜 、 甲苯 为溶剂， 反应 21.0h， 生成 顺式-5-二十碳烯酸
  参考文献：
  名称：

  Levin, Daniel; Warren, Stuart, Journal of the Chemical Society. Perkin transactions I, 1988, p. 1799 - 1808

  摘要：

  DOI：

文献信息

• METHOD FOR THE SYNTHESIS OF DIACIDS OR DIESTERS FROM NATURAL FATTY ACIDS AND/OR ESTERS
  申请人：Dubois Jean-Luc

  公开号：US20100305354A1

  公开（公告）日：2010-12-02

  The invention relates to a process for the synthesis of diacids or diesters of general formula ROOC—(CH 2 ) x —COOR, in which n is an integer between 5 and 14, R is either H or an alkyl radical of 1 to 4 carbon atoms, from natural long-chain monounsaturated fatty acids or esters including at least 10 adjacent carbon atoms per molecule of the general formula CH 3 —(CH 2 ) n —CHR 1 —CH 2 —CH═CH—(CH 2 ) p —COOR, in which R is H or an alkyl radical with 1 to 4 carbon atoms, R 1 is either H or OH, and n and p, which are equal or different and are indices between 2 and 11. The method comprises: during a first step, converting the natural fatty acid or ester by pyrolysis or by ethenolysis, into a ω-monounsaturated fatty acid or ester of the general formula CH 2 ═CH—(CH 2 ) m —COOR, in which m is equal to p or p+1, depending on the nature of the processed fatty acid/ester and the conversion used; during a second step, submitting the product thus obtained to a metathesis or homometathesis reaction for obtaining a compound of the general formula ROOC—(CH 2 ) m —CH═CH—(CH 2 ) m —COOR, or cross-metathesis with a compound of formula R 2 OOC—(CH 2 ) r —CH═CH—R 3 , in which R 2 is either H or an alkyl radical front with 1 to 4 carbon atoms, r is either 0 or 1 or 2 and R 3 is H, CH 3 or COOR 2 , thus defining a cyclic or molecule or not, in order to obtain an unsaturated compound of the general formula ROOC—(CH 2 ) m —CH═CH—(CH 2 ) r —COOR 2 , and during a third step, converting the unsaturated compound into a saturated compound by hydrogenation of the double bond.

  这项发明涉及一种合成一般公式为ROOC—(CH2)x—COOR的二元酸或二元酯的过程，其中n是5到14之间的整数，R是H或1到4个碳原子的烷基自由基，从天然长链单不饱和脂肪酸或酯中合成，这些脂肪酸或酯每分子至少包括10个相邻的碳原子，其一般公式为CH3—(CH2)n—CHR1—CH2—CH═CH—(CH2)p—COOR，其中R是H或1到4个碳原子的烷基自由基，R1是H或OH，n和p相等或不同，是2到11之间的指数。该方法包括：在第一步中，通过热解或乙炔醇解将天然脂肪酸或酯转化为ω-单不饱和脂肪酸或酯，其一般公式为CH2═CH—(CH2)m—COOR，其中m等于p或p+1，具体取决于处理的脂肪酸/酯的性质和所使用的转化；在第二步中，将所得产物进行交叉代谢或同交叉代谢反应，以获得一般公式为ROOC—(CH2)m—CH═CH—(CH2)m—COOR的化合物，或与公式为R2OOC—(CH2)r—CH═CH—R3的化合物进行交叉代谢，其中R2是H或1到4个碳原子的烷基自由基，r是0或1或2，R3是H、CH3或COOR2，从而定义一个循环或不循环的分子，以获得一般公式为ROOC—(CH2)m—CH═CH—(CH2)r—COOR2的不饱和化合物；在第三步中，通过加氢双键将不饱和化合物转化为饱和化合物。
• METHOD FOR THE SYNTHESIS OF AN OMEGA-AMINO ACID OR ESTER STARTING FROM A MONOUNSATURATED FATTY ACID OR ESTER
  申请人：Dubois Jean-Luc

  公开号：US20110224454A1

  公开（公告）日：2011-09-15

  The invention relates to a method for the synthesis of ω-amino alkanoic acids or esters thereof starting from unsaturated natural fatty acids passing through an ω-unsaturated nitrile intermediate compound.

  该发明涉及一种从非饱和天然脂肪酸开始，通过一种ω-非饱和腈中间化合物来合成ω-氨基烷酸或其酯的方法。
• METHOD FOR SYNTHESIZING AN OMEGA-AMINO ACID OR ESTER FROM A MONOUNSATURATED FATTY ACID OR ESTER
  申请人：Couturier Jean-Luc

  公开号：US20140187808A1

  公开（公告）日：2014-07-03

  A method for synthesizing ω-amino-alkanoic acids or the esters thereof from natural unsaturated fatty acids passing through an intermediate ω-unsaturated nitrile compound. The method is simple to implement and, relative to known methods, avoids the environmental constraints and economic disadvantages resulting from the reaction by-products. The method includes synthesizing an ω-amino acid (ester) of formula R3OOC—(CH2) q —CH2NH2, in which R3 is H or an n-butyl radical and q is an integral index of between 2 and 13, from a monounsaturated fatty acid (ester) of formula (R1-CH═CH—(CH2)p-COO) xR2, in which x represents 1, 2 or 3, R1 is H or a hydrocarbon radical comprising from 4 to 11 carbon atoms and, where appropriate, a hydroxyl function, R2 is H or an alkyl radical comprising from 2 to 4 carbon atoms, and may contain one or more heteroatoms, and p is an integral index of between 2 and 11, including a reaction step of ammoniation.

  一种从天然不饱和脂肪酸通过中间体ω-不饱和腈化合物合成ω-氨基-烷酸或其酯的方法。该方法实施简单，与已知方法相比，避免了由反应副产物导致的环境限制和经济劣势。该方法包括从公式为(R1-CH═CH—(CH2)p-COO)xR2的单不饱和脂肪酸(酯)合成公式为R3OOC—(CH2)q—CH2NH2的ω-氨基酸(酯)，其中R3是H或n-丁基基团，q是2到13之间的整数指数，x代表1、2或3，R1是H或含4到11个碳原子的烃基团，适当情况下还含有羟基，R2是H或含2到4个碳原子的烷基基团，可包含一个或多个杂原子，p是2到11之间的整数指数，包括氨化反应步骤。
• METHOD FOR THE SYNTHESIS OF OMEGA-AMINO-ALKANOIC ACIDS
  申请人：Dubois Jean-Luc

  公开号：US20100168453A1

  公开（公告）日：2010-07-01

  The invention relates to a method for the synthesis of amino acids/esters of general formula NH 2 —(CH 2 ) n —COOR in which n is an integer between 5 and 14, and R is either H or an alkyl radical including from 1 to 4 carbon atoms, from natural long-chain mono-unsaturated fatty acids or esters including at least 10 adjacent carbon atoms per molecule, said method comprising: first converting, if necessary, said natural long-chain fatty acid or ester into a monounsaturated fatty acid/ester of general formula R 1 —(CH 2 ) m —CH═CH—(CH 2 ) p —COOR in which R 1 is H, CH 3 or a COOR radical, m is an integer between 0 and 14 and p is an integer between 2 and 11, then submitting the latter to a crossed catalytic metathesis reaction with a compound of formula R 2 —CH═CH—R 3 in which R 2 is either H or CN and R 3 is CN or CH 2 NH 2 , provided that if R 2 is CN, R 3 can be only CN, and finally converting the resulting product of the general formula R 3 —CH═CH—(CH 2 ) p —COOR into an amino-acid, either by hydrogenation, or by hydrogenation of the triple terminal bond, or by amination of the double terminal bond.

  本发明涉及一种合成通式为NH2—(CH2)n—COOR的氨基酸/酯的方法，其中n为5至14之间的整数，R为H或包括1至4个碳原子的烷基基团，所述方法包括：首先，如果必要，将天然长链脂肪酸或酯转化为通式为R1—(CH2)m—CH═CH—(CH2)p—COOR的单不饱和脂肪酸/酯，其中R1为H，CH3或COOR基团，m为0至14之间的整数，p为2至11之间的整数；然后，将后者与通式为R2—CH═CH—R3的化合物进行交叉催化复分解反应，其中R2为H或CN，R3为CN或CH2NH2，如果R2为CN，则R3只能为CN；最后，将得到的通式为R3—CH═CH—(CH2)p—COOR的产品转化为氨基酸，可以通过氢化，或通过氢化末端的三键，或通过末端的双键的氨基化来实现。
• Method for Synthesizing an Omega-Amino Acid or Ester from a Monounsaturated Fatty Acid or Ester
  申请人：Dubois Jean-Luc

  公开号：US20110300590A1

  公开（公告）日：2011-12-08

  The invention relates to a method for synthesizing ω-aminoalkanoic acids or esters thereof from unsaturated natural fatty acids, passing through a monounsaturated dinitrile intermediate compound. The method of the invention is simple to carry out and, compared to other known methods, avoids the environmental constraints and economic disadvantages due to reaction by-products.

  该发明涉及一种从不饱和天然脂肪酸合成ω-氨基烷基酸或其酯的方法，经过一种单不饱和二腈中间化合物。该发明的方法易于实施，并与其他已知方法相比，避免了由于反应副产物而带来的环境约束和经济劣势。