3-溴-4-乙氧基-3-丁烯-2-酮 | 82982-59-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 3-溴-4-乙氧基-3-丁烯-2-酮
• 英文名称: 3-Bromo-4-ethoxy-3-buten-2-one
• 英文别名: (Z)-3-bromo-4-ethoxybut-3-en-2-one
• CAS: 82982-59-0
• 化学式: C₆H₉BrO₂
• 分子量: 193.04
• InChiKey: VSEUYEAKIAUEHZ-XQRVVYSFSA-N

物化性质

• 沸点：
  243.9±35.0 °C(Predicted)
• 密度：
  1.402±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  9
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2914700090

反应信息

• 作为反应物：
  描述：

  3-溴-4-乙氧基-3-丁烯-2-酮 以21%的产率得到
  参考文献：
  名称：

  LAMATTINA, J. L.;LIPINSKI, C. A.

  摘要：

  DOI：
• 作为产物：
  描述：

  (Z)-3-bromo-4-hydroxybut-3-en-2-one 以100%的产率得到
  参考文献：
  名称：

  LAMATTINA, J. L.;LIPINSKI, C. A.

  摘要：

  DOI：

文献信息

• 2-Guanidino-4-heteroarylthiazoles
  申请人：Pfizer Inc.

  公开号：US04374843A1

  公开（公告）日：1983-02-22

  A series of 2-guanidino-4-heteroarylthiazoles, wherein the heteroaryl substituent is selected from thiazolyl, triazolyl, imidazolyl, and 2-alkyl, 2-amino and 2-carboxamido derivatives thereof, are disclosed. The novel compounds have activity as antisecretory agents and histamine H.sub.2 antagonists and are useful for the treatment of gastric hyperacidity and peptic ulcers. Also disclosed are pharmaceutical compositions containing the novel compounds of this invention and a method of using the compounds in the treatment of gastric hyperacidity and peptic ulcers. Novel intermediates useful in the preparation of the novel antisecretory compounds are also described.

  本发明揭示了一系列2-胍基-4-杂环芳基噻唑，其中杂环芳基取代基选自噻唑基、三唑基、咪唑基以及其2-烷基、2-氨基和2-羧酰胺衍生物。这些新颖的化合物具有抗分泌作用和组胺H.sub.2拮抗剂活性，可用于治疗胃酸过多和消化性溃疡。还揭示了含有本发明新化合物的药物组合物以及使用这些化合物治疗胃酸过多和消化性溃疡的方法。还描述了在制备新型抗分泌化合物中有用的新颖中间体。
• 2-(N-substituted guanidino)-4-hetero-arylthiazole antiulcer agents
  申请人：Pfizer Inc.

  公开号：US04560690A1

  公开（公告）日：1985-12-24

  2,4-Disubstituted thiazole compounds of the formula ##STR1## or a pharmaceutically acceptable acid addition salt thereof wherein X is NH and Y is CH or N, or X is S and Y is CH; R.sup.1 is certain straight or branched chain alkyl groups, (R.sup.3).sub.2 C.sub.6 H.sub.3, or (R.sup.3).sub.2 Ar(CH.sub.2).sub.n where n is an integer from 1 to 4, R.sup.3 is H or certain substituent groups and Ar is phenylene, naphthalene or the residue of certain heteroaromatic groups; R.sup.2 is H or (C.sub.1 -C.sub.4)alkyl; or R.sup.1 and R.sup.2 taken together with the nitrogen atom to which they are attached form certain heterocyclic groups; and R.sup.4 is H, (C.sub.1 -C.sub.5)alkyl, NH.sub.2 or CH.sub.2 OH; a method for their use in treatment of gastric ulcers in mammals and pharmaceutical compositions containing said compounds.

  2,4-二取代噻唑化合物的化学式为##STR1##或其医药上可接受的酸盐，其中X为NH，Y为CH或N，或X为S，Y为CH；R.sup.1为某些直链或支链烷基，(R.sup.3).sub.2 C.sub.6 H.sub.3，或(R.sup.3).sub.2 Ar(CH.sub.2).sub.n，其中n为1至4的整数，R.sup.3为H或某些取代基，Ar为苯基、萘基或某些杂环芳基的残基；R.sup.2为H或(C.sub.1 -C.sub.4)烷基；或R.sup.1和R.sup.2与它们连接的氮原子一起形成某些杂环族；R.sup.4为H，(C.sub.1 -C.sub.5)烷基，NH.sub.2或CH.sub.2 OH；一种用于哺乳动物治疗胃溃疡的方法和含有这些化合物的药物组合物。
• 2-Guanidino-4-heteroarylthiazoles and pharmaceutical compositions containing them
  申请人：PFIZER INC.

  公开号：EP0050458A2

  公开（公告）日：1982-04-28

  A series of 2-guanidino-4-heteroarylthiazoles of the formula: and the pharmaceutically acceptable acid addition salts thereof, wherein X is S or NH; Y is CH, C.CH3 or N; R is hydrogen, hydroxymethyl, alkyl of 1 to 6 carbon atoms, -(CH2)nAr, -NH2, -NHR1 or -NHCOR1, wherein R1 is alkyl of 1 to 6 carbon atoms or -(CH2)mAr; n is an integer from 2 to 4; m is zero or an integer from 1 to 4; Ar is phenyl or phenyl monosubstituted with chloro, bromo, fluoro, alkyl of 1 to 3 carbon atoms or alkoxy of 1 to 3 carbon atoms; provided that when Y is N, X is NH and m is other than zero; and when X is S, R is other than hydroxymethyl, alkyl, or -(CH2)nAr; and pharmaceutical compositions containing them. The compounds are useful in the prevention or treatment of gastric hyperacidit y and peptic ulcers. Also included are certain intermediates useful in the preparation of the thiazoles.

  一系列式中的 2-胍基-4-杂芳基噻唑： 及其药学上可接受的酸加成盐、 其中 X 是 S 或 NH；Y 是 CH、C.CH3或N；R是氢、羟甲基、1～6个碳原子的烷基、-(CH2)nAr、-NH2、-NHR1或-NHCOR1，其中R1是1～6个碳原子的烷基或-(CH2)mAr；n是2～4的整数；m是零或1～4的整数；Ar是苯基或被氯、溴、氟、1至3个碳原子的烷基或1至3个碳原子的烷氧基单取代的苯基；条件是当Y是N时，X是NH，m不是零；当X是S时，R不是羟甲基、烷基或-(CH2)nAr；以及含有它们的药物组合物。这些化合物可用于预防或治疗胃酸过多和消化性溃疡。此外，还包括某些用于制备噻唑类化合物的中间体。
• Herbicide and plant growth regulator comprising alpha-beta-unsaturated compound
  申请人：TEIJIN LIMITED

  公开号：EP0104432A2

  公开（公告）日：1984-04-04

  A herbicide comprising as an active ingredient an α,β-unsaturated compound of the following formula (I) wherein each of R' and R2 represents CN, NO2, a halogen, a C1-25 alkoxy or alkylthio, a group of the formula in which Z' represents C1-25 alkyl or a phenyl, a group of the formula in which X's represent an oxygen or sulfur atom and Z2 represents hydrogen, one equivalent of a cation, C1-25 alkyl, a phenyl or a phenyl (C1-25 alkyl), a group of the formula

  一种除草剂，其活性成分为下式（I）的α，β-不饱和化合物 其中 R'和 R2 各自代表 CN、NO2、卤素、C1-25 烷氧基或烷基硫代、一个式中的基团 其中 Z'代表 C1-25 烷基或苯基，一个式基团 式中 X 代表氧原子或硫原子，Z2 代表氢、一个当量的阳离子、C1-25 烷基、苯基或苯基（C1-25 烷基）、一个式基团
• An improved preparation and use of 2-bromoacetoacetaldehyde in a new synthesis of 2-substituted-4-acetylimidazoles
  作者：Christopher A. Lipinski、Thaddeus E. Blizniak、Rebecca H. Craig

  DOI：10.1021/jo00177a042

  日期：1984.2