cyclopropanecarboxylic acid benzyl ester | 20121-75-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: cyclopropanecarboxylic acid benzyl ester
• 英文别名: benzyl cyclopropanecarboxylate；Cyclopropancarbonsaeurebenzylester
• CAS: 20121-75-9
• 化学式: C₁₁H₁₂O₂
• 分子量: 176.215
• InChiKey: LEIUFQFSNLHXSJ-UHFFFAOYSA-N

物化性质

• 沸点：
  253.4±9.0 °C(Predicted)
• 密度：
  1.162±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-溴-1-乙基吡啶四氟硼酸盐 以62%的产率得到
  参考文献：
  名称：

  SAIGO K.; USUI M.; KIKUCHI K.; SHIMADA E.; MUKAIYAMA T., BULL. CHEM. SOC. JAP. , 1977, 50, NO 7, 1863-1866

  摘要：

  DOI：

文献信息

• Direct ester condensation from a 1:1 mixture of carboxylic acids and alcohols catalyzed by hafnium(IV) or zirconium(IV) salts
  作者：Kazuaki Ishihara、Masaya Nakayama、Suguru Ohara、Hisashi Yamamoto

  DOI：10.1016/s0040-4020(02)00966-3

  日期：2002.10

  either carboxylic acids or alcohols are normally needed. We found that the direct condensation of equimolar amounts of carboxylic acids and alcohols could be achieved using hafnium(IV) or zirconium(IV) salts. These metal salts are highly effective as catalysts for the selective esterification of primary alcohols with carboxylic acids in the presence of secondary alcohols or aromatic alcohols. The present

  为了提高合成中的原子效率并避免产生环境废物，应避免使用化学计量的缩合试剂或过量的底物。在酯化中，通常需要过量的羧酸或醇。我们发现，使用ha（IV）或锆（IV）盐可以实现等摩尔量的羧酸和醇类的直接缩合。这些金属盐在仲醇或芳族醇的存在下作为伯醇与羧酸选择性酯化的催化剂非常有效。本发明的方法可以用于直接聚酯化并且可以适用于大规模操作。
• New Method for the Preparation of Carboxylic Esters
  作者：Kazuhiko Saigo、Masahiro Usui、Kazunori Kikuchi、Eiichiro Shimada、Teruaki Mukaiyama

  DOI：10.1246/bcsj.50.1863

  日期：1977.7

  Various carboxylic esters including functionalized ones are prepared in good yields from equimolar amounts of free carboxylic acids and alcohols under mild conditions by the use of 2-chloro- or 2-bromopyridinium salt, a new and efficient coupling reagent.

  通过使用 2-氯-或 2-溴吡啶鎓盐（一种新型高效偶联剂），在温和条件下，由等摩尔量的游离羧酸和醇以良好的收率制备各种羧酸酯，包括官能化的羧酸酯。
• METHOD FOR MANUFACTURING 1,5-BENZODIAZEPINE DERIVATIVE
  申请人：Terauchi Masaru

  公开号：US20120010401A1

  公开（公告）日：2012-01-12

  An industrially advantageous method for producing a 1,5-benzodiazepine compound is provided. A compound (5) is obtained according to the reaction scheme shown below, and this compound is used as an intermediate.

  提供了一种在工业上有利的生产1,5-苯并二氮杂环化合物的方法。根据下面所示的反应方案得到了一种化合物（5），该化合物被用作中间体。
• Cyclopropanecarboxylic Acid Esters as Potential Prodrugs with Enhanced Hydrolytic Stability
  作者：David M. Bender、Jeffrey A. Peterson、James R. McCarthy、Hakan Gunaydin、Yu Takano、K. N. Houk

  DOI：10.1021/ol702892e

  日期：2008.2.1

  Esters of cyclopropanecarboxylic acid demonstrate a substantial increase in stability under both acid- and base-catalyzed hydrolytic conditions. Comparison of the stability of valacyclovir 13 with the cyclopropane analogue 14 shows that at 40 degrees C and pH 6 the half-life of 14 is >300 h while the value for 13 is 69.7 h. CBS-QB3 calculations on isodesmic reactions for transfer of groups from an

  环丙烷羧酸酯在酸和碱催化的水解条件下均显示出稳定性的大幅提高。伐昔洛韦13与环丙烷类似物14的稳定性比较表明，在40摄氏度和pH值为6时，14的半衰期> 300 h，而13的半衰期为69.7 h。CBS-QB3对等价反应的计算表明，该反应是将基团从烷烃转移至酯的过程，表明环丙基可提供超共轭稳定作用。
• [EN] 4-(3,3-DIHALO-ALLYLOXY)PHENOXY ALKYL DERIVATIVES<br/>[FR] DERIVES 4-(3,3-DIHALO-ALLYLOXY)PHENOXYALKYLE
  申请人：SYNGENTA PARTICIPATIONS AG

  公开号：WO2004002943A1

  公开（公告）日：2004-01-08

  Compounds of formula (I), wherein A1, A2 and A3 are each independently of the others a bond or a C1-C6alkylene bridge; A4 is a C1-C6alkylene bridge; Di s CH or N; W is, for example, O, NR7 or S; T is, for example, a bond, O, NH or NR7; Q is O, NR7, S, SO or SO2; Y is O, NR7, S, SO, or SO2; X1 and X2 are each independently of the other fluorine, chlorine or bromine; R1, R2 and R3 ar, for example, H, halogen, CN, nitro, C1-C6alkyl, C1-C6haloalkyl, C1-C6alkylcarbonyl or C2-C6alkenyl; R4 is, for example, H, halogen, CN, nitro or C1-C6alkyl; R5 and R6 are, for example, H, CN, OH, C1-C6alkyl, C3-C8cycloalkyl, C3-C8cycloalkyl-C1-C6alkyl, C1-C6 haloalky, C1-C6alkoxy or C1-C6haloalkoxy; R7 is H, C1-C6alkyl, C1-C6alkoxyalkyl or C1-C6alkylcarbonyl; k, when D is nitrogen, is 1, 2 or 3; or, when D is CH, is 1, 2, 3 or 4; and m is 1 or 2; and, where applicable, their possible E/Z isomers, E/Z isomeric mixtures and/or tautomers, in each case in free form or in salt form, a process for the preparation of those compounds and their use, pesticidal compositions in which the active ingredient has been selected from those compounds or an agrochemically acceptable salt thereof, a process for the preparation of those compositions and their use, plant propagation material treated with those compositions, and a method of controlling pests.

  化学式为（I）的化合物，其中A1、A2和A3各自独立地为键或C1-C6烷基桥；A4为C1-C6烷基桥；Di为CH或N；W为例如O、NR7或S；T为例如键、O、NH或NR7；Q为O、NR7、S、SO或SO2；Y为O、NR7、S、SO或SO2；X1和X2各自独立地为氟、氯或溴；R1、R2和R3例如为H、卤素、CN、硝基、C1-C6烷基、C1-C6卤代烷基、C1-C6烷基羰基或C2-C6烯基；R4例如为H、卤素、CN、硝基或C1-C6烷基；R5和R6例如为H、CN、OH、C1-C6烷基、C3-C8环烷基、C3-C8环烷基-C1-C6烷基、C1-C6卤代烷氧基或C1-C6烷氧基；R7为H、C1-C6烷基、C1-C6烷氧基烷基或C1-C6烷基羰基；当D为氮时，k为1、2或3；或当D为CH时，k为1、2、3或4；m为1或2；适用时，它们的可能的E/Z异构体、E/Z异构体混合物和/或互变异构体，均为自由形式或盐形式，制备这些化合物的方法及其用途，所述活性成分被选自这些化合物或其农药学上可接受的盐的杀虫剂组合物，制备这些组合物的方法及其用途，用这些组合物处理的植物繁殖材料，以及控制害虫的方法。