2-乙基-3-甲基丁酸甲酯 | 32444-33-0

• 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: 2-乙基-3-甲基丁酸甲酯
• 英文名称: methyl 2-ethyl-3-methylbutyrate
• 英文别名: 2-ethyl-3-methyl-butyric acid methyl ester；2-Aethyl-3-methyl-buttersaeure-methylester；2-Aethyl-3-methylbuttersaeure-methylester；3-Methyl-2-ethyl-buttersaeure-methylester；Methyl-α-i-propylbutyrat；methyl 2-ethyl-3-methylbutanoate
• CAS: 32444-33-0
• 化学式: C₈H₁₆O₂
• 分子量: 144.214
• InChiKey: DZSHJVHEBKGUGV-UHFFFAOYSA-N

物化性质

• 沸点：
  146-147 °C(Press: 741 Torr)
• 密度：
  0.874±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-乙基-3-甲基丁酸甲酯 在 lithium aluminium tetrahydride 作用下， 生成 2-乙基-3-甲基-1-丁醇
  参考文献：
  名称：

  Sakai,K.; Tsuda,K., Chemical and pharmaceutical bulletin, 1963, vol. 11, p. 650 - 653

  摘要：

  DOI：
• 作为产物：
  描述：

  2-甲基-3-己酮 在 四氯化碳 、 N-溴代丁二酰亚胺(NBS) 、 乙醚 作用下， 生成 2-乙基-3-甲基丁酸甲酯
  参考文献：
  名称：

  Rappe; Knutsson, Acta Chemica Scandinavica (1947), 1967, vol. 21, p. 2205,2208

  摘要：

  DOI：

文献信息

• HERBICIDAL AND FUNGICIDAL 5-OXY-SUBSTITUTED 3-PHENYLISOXAZOLINE-5-CARBOXAMIDES AND 5-OXY-SUBSTITUTED 3-PHENYLISOXAZOLINE-5-THIOAMIDES
  申请人：BAYER CROPSCIENCE AG

  公开号：US20150245616A1

  公开（公告）日：2015-09-03

  Herbicidally and fungicidally active 5-oxy-substituted 3-phenylisoxazoline-5-carboxamides and 5-oxy-substituted 3-phenylisoxazoline-5-thioamides of the formula (I) are described. In this formula (I), X, X 2 to X 6 , R 1 to R 4 are radicals such as hydrogen, halogen and organic radicals such as substituted alkyl. A is a bond or a divalent unit. Y is a chalcogen.

  具有除草和杀菌活性的5-氧代取代的3-苯基异噁唑啉-5-羧酰胺和5-氧代取代的3-苯基异噁唑啉-5-硫酰胺的化合物如下式（I）所述。 在这个式子（I）中，X，X2至X6，R1至R4是氢、卤素和有机基团，如取代烷基等。A是一个键或二价基团。Y是硫族元素。
• [EN] DIHYDROQUINOLIZINONES AS ANTIVIRALS<br/>[FR] DIHYDROQUINOLIZINONES À UTILISER EN TANT QU'ANTIVIRAUX
  申请人：GLAXOSMITHKLINE IP DEV LTD

  公开号：WO2018154466A1

  公开（公告）日：2018-08-30

  Compounds, specifically hepatitis B virus and/or hepatitis D virus inhibitors, more specifically compounds that inhibit HBe antigen and HBs antigen in a subject, for the treatment of viral infections, and methods of preparing and using such compounds. Formula (I):

  化合物，具体来说是乙型肝炎病毒和/或丙型肝炎病毒抑制剂，更具体地说是抑制受试者体内HBe抗原和HBs抗原的化合物，用于治疗病毒感染，并且涉及制备和使用这类化合物的方法。化学式（I）:
• USE OF SUBSTITUTED ISOQUINOLINONES, ISOQUINOLINDIONES, ISOQUINOLINTRIONES AND DIHYDROISOQUINOLINONES OR IN EACH CASE SALTS THEREOF AS ACTIVE AGENTS AGAINST ABIOTIC STRESS IN PLANTS
  申请人：Frackenpohl Jens

  公开号：US20140302987A1

  公开（公告）日：2014-10-09

  Use of substituted isoquinolinones, isoquinolinediones, isoquinolinetriones and dihydroisoquinolinones of the general formula (I) or their respective salts where the radicals in the general formula (I) correspond to the definitions given in the description, for enhancing stress tolerance in plants to abiotic stress, for strengthening plant growth and/or for increasing plant yield, and selected processes for preparing the compounds mentioned above.

  使用通式（I）中的替代的异喹啉酮、异喹啉二酮、异喹啉三酮和二氢异喹啉酮或它们的相应盐，其中通式（I）中的基团对应于描述中给出的定义，用于增强植物对非生物胁迫的耐受性，增强植物生长和/或增加植物产量，并选择性地制备上述化合物的过程。
• Alkylation de quelques composés carbonylés par des groupes tertiaires. Utilisation de la réaction de friedel-crafts dans la synthèse d'ésters
  作者：Claude Lion、Jacques-Emile Dubois

  DOI：10.1016/s0040-4020(01)92017-4

  日期：1981.1

  t-Alkylation of carboxylic esters via their ketene alkyl trimethylsilyl acetals by the Friedal-Crafts reaction allows the synthesis of new highly hindered compounds. A new route using sodium amide in dimethoxyethane, for the preparation of trimethylsilylenol ethers of ketones, is described. The α-t-butylation of these compounds permits the synthesis of new crowded pentasubstituted ketones. The limits

  通过Friedal-Crafts反应，通过其烯酮烷基三甲基甲硅烷基乙缩醛对羧酸酯进行t-烷基化反应，可以合成新的高度受阻的化合物。描述了一种在二甲氧基乙烷中使用酰胺钠制备酮的三甲基甲硅烷基醚的新途径。这些化合物的α-叔丁基化可以合成新的拥挤的五取代的酮。研究了该方法的局限性和性能。
• METHOD FOR PRODUCING a-SUBSTITUTED CYSTEINE OR SALT THEREOF OR SYNTHETIC INTERMEDIATE OF a-SUBSTITUTED CYSTEINE
  申请人：API Corporation

  公开号：US20160083341A1

  公开（公告）日：2016-03-24

  According to the present invention, it becomes possible to perform a process for converting into an α-substituted cysteine represented by general formula (1) or a salt thereof at low cost and on an industrial scale by employing a process that is routed through a compound represented by general formula (3) to a compound represented by general formula (6). Particularly, by employing a process that is routed through a compound represented by general formula (7-2), it becomes possible to detach a tert-butyl protection group in a simple manner and to produce the compound represented by general formula (1) with high purity. Furthermore, by employing a process that is routed through tert-butylthiomethanol or a process that is routed through a compound represented by general formula (9), it becomes possible to produce a compound represented by general formula (2) without generating bischloromethylether that is an oncogenic substance. In the production of an α-substituted-D-cysteine or a salt thereof, it becomes possible to perform a process for converting the compound represented by general formula (2) into a compound represented by general formula (3S) in one step by allowing an enzyme or the like to act on the compound represented by general formula (2).

  根据本发明，通过采用经由一种化合物（通式（3）表示）到一种通式（6）表示的化合物的过程，可以以低成本和工业化规模进行将其转化为通式（1）表示的α-取代半胱氨酸或其盐的过程。特别是，通过采用经由一种通式（7-2）表示的化合物的过程，可以简单地去除叔丁基保护基，并以高纯度生产通式（1）表示的化合物。此外，通过采用经由叔丁基硫代甲醇或经由一种通式（9）表示的化合物的过程，可以生产通式（2）表示的化合物，而不产生致癌物质双氯甲醚。在生产α-取代-D-半胱氨酸或其盐时，可以通过允许酶或类似物作用于通式（2）表示的化合物，一步将其转化为通式（3S）表示的化合物。