2,3-dimethyl-3-pentenoic acid | 126486-05-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2,3-dimethyl-3-pentenoic acid
• 英文别名: E-2,3-dimethylpent-3-enoic acid；2,3-dimethyl-pent-3-enoic acid；2,3-Dimethyl-pent-3-ensaeure；(3E)-2,3-dimethyl-3-pentenoic acid；(E)-2,3-dimethylpent-3-enoic acid
• CAS: 126486-05-3
• 化学式: C₇H₁₂O₂
• 分子量: 128.171
• InChiKey: WKNDOKOXDLGPLL-SNAWJCMRSA-N

物化性质

• 沸点：
  217.0±9.0 °C(Predicted)
• 密度：
  0.967±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  9
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (3S,4S)-4-Ethyl-3,4-dimethyl-oxetan-2-one 在 magnesium bromide 作用下， 以 乙醚 为溶剂， 反应 6.0h， 以94%的产率得到2,3-dimethyl-3-pentenoic acid
  参考文献：
  名称：

  通过E 1型电离/消除β-内酯合成环状和无环βγ-不饱和car☐水杨酸

  摘要：

  DOI：

  10.1016/s0040-4020(01)82011-1

文献信息

• Efficient One-to-One Coupling of Easily Available 1,3-Dienes with Carbon Dioxide
  作者：Jun Takaya、Kota Sasano、Nobuharu Iwasawa

  DOI：10.1021/ol2002094

  日期：2011.4.1

  reaction of atmospheric pressure carbon dioxide with 1,3-dienes is realized for the first time through PSiP-pincer type palladium-catalyzed hydrocarboxylation. The reaction is applicable to various 1,3-dienes including easily available chemical feedstock such as 1,3-butadiene and isoprene. This protocol affords a highly useful method for the synthesis of β,γ-unsaturated carboxylic acid derivatives from

  通过PSiP-钳子型钯催化的加氢羧化反应，首次实现了大气压二氧化碳与1,3-二烯的高效一对一偶联反应。该反应适用于各种1，3-二烯，包括容易获得的化学原料，例如1，3-丁二烯和异戊二烯。该方案为从CO 2合成β，γ-不饱和羧酸衍生物提供了一种非常有用的方法。
• ASYMMETRIC ORGANIC PEROXIDE, CROSSLINKING AGENT COMPRISING THE SAME, AND METHOD OF CROSSLINKING WITH THE SAME
  申请人：NOF CORPORATION

  公开号：EP1233014A1

  公开（公告）日：2002-08-21

  A crosslinking agent comprising an asymmetry organic peroxide having at least one structure unit of (substituted)benzoylcarbonyloxy group represented by the following formula (1) in the molecule thereof. Environmentally friendly crosslinking agents and crosslinked silicone rubber moldings are provided thereby. Specifically, useful crosslinking agents and crosslinking processes for silicone rubber are provided.

  一种交联剂，包括至少具有分子中表示为以下式（1）的（取代）苯甲酰羰氧基结构单元的不对称有机过氧化物。因此提供了环保的交联剂和交联硅橡胶成型品。具体提供了用于硅橡胶的有用交联剂和交联工艺。
• Method for producing anellated tetrahydro-{1h}-triazoles
  申请人：——

  公开号：US20040097728A1

  公开（公告）日：2004-05-20

  The present invention relates to a process for preparing fused tetrahydro-[ 1 H]-triazoles of the formula I 1 where the variables R a , Z, Z 1 , X, W, n and Q are as defined in claim 1, by cyclization of compounds of the formula II 2 where R is C(X)OR 2 or C(X)SR 2 , where X is oxygen or sulfur, and R 2 is as defined in claim 1, in the presence of a base. The invention also relates to compounds of the formula I where W is sulfur if Z is a methylene group optionally substituted by R a , and furthermore to compounds of the formula I where Q is a benzoxazole or benzothiazole radical, and to the use of these compounds as herbicides.

  本发明涉及一种制备公式I的熔融四氢咪唑的方法，其中变量Ra、Z、Z1、X、W、n和Q如权利要求1中定义，通过在碱存在下，将公式II的化合物环化得到，其中R为C(X)OR2或C(X)SR2，其中X为氧或硫，R2如权利要求1中定义。该发明还涉及公式I的化合物，其中如果Z是可选地由Ra取代的亚甲基基团，则W为硫，此外还涉及公式I的化合物，其中Q为苯并噁唑或苯并噻唑基团，并将这些化合物用作除草剂。
• EtAlCl₂/2,6-Disubstituted Pyridine-Mediated Carboxylation of Alkenes with Carbon Dioxide
  作者：Shinya Tanaka、Kota Watanabe、Yuuki Tanaka、Tetsutaro Hattori

  DOI：10.1021/acs.orglett.6b00918

  日期：2016.6.3

  and trialkyl-substituted alkenes undergo carboxylation with CO2 in the presence of EtAlCl2 and 2,6-dibromopyridine to afford the corresponding α,β- and/or β,γ-unsaturated carboxylic acids. This reaction is suggested to proceed via the electrophilic substitution of EtAlCl2 with the aid of the base, followed by the carbonation of the resulting ate complex. This reaction can be applied to terminal dialkylalkenes

  在EtAlCl 2和2,6-二溴吡啶的存在下，α-芳基烯烃和三烷基取代的烯烃与CO 2进行羧化反应，得到相应的α，β-和/或β，γ-不饱和羧酸。建议该反应通过在碱的辅助下对EtAlCl 2进行亲电取代，然后将所得的盐配合物碳酸化来进行。通过使用2，6-二叔丁基吡啶和2，6-二溴吡啶的混合物，该反应可用于末端二烷基烯烃。
• NEUTRAL LAYER POLYMER COMPOSITION FOR DIRECTED SELF ASSEMBLY AND PROCESSES THEREOF
  申请人：WU Hengpeng

  公开号：US20130330668A1

  公开（公告）日：2013-12-12

  The present invention relates to a novel polymeric composition comprising a novel polymer having two or more repeat units and a terminus having the structure (1): wherein R 1 represents a C 1 -C 20 substituted or unsubstituted alkyl group, w is a number from 1-8, X is oxygen (O) or nitrogen (N), and R d is a reactive group. The invention also relates to a process for forming a pattern using the novel polymeric composition. The invention further relates to a process of making the novel polymer.

  本发明涉及一种新型聚合物组合物，包括具有两个或更多重复单元和具有结构（1）的末端的新型聚合物：其中R1代表C1-C20取代或未取代的烷基基团，w为1-8的数字，X为氧（O）或氮（N），Rd为反应性基团。该发明还涉及使用该新型聚合物组合物形成图案的方法。该发明还涉及制备该新型聚合物的方法。