3-溴-1-甲基吡咯烷 | 10603-45-9

• 物质功能分类: 有机原料 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 中文名称: 3-溴-1-甲基吡咯烷
• 英文名称: 3-bromo-1-methylpyrrolidine
• 英文别名: 1-Methyl-3-brompyrrolidin
• CAS: 10603-45-9
• 化学式: C₅H₁₀BrN
• 分子量: 164.045
• InChiKey: ZHUYTHOKJZSZQJ-UHFFFAOYSA-N

物化性质

• 沸点：
  153-159 °C
• 密度：
  1.361 g/mL at 25 °C
• 闪点：
  54 °C

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  7
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  3.2
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 危险等级：
  3
• 危险品标志：
  F,C
• 安全说明：
  S26,S36/37/39,S45
• 危险类别码：
  R11,R34
• 包装等级：
  III
• 危险类别：
  3,8
• 危险性防范说明：
  P280,P305+P351+P338,P310
• 危险品运输编号：
  2733
• 危险性描述：
  H225,H314

制备方法与用途

3-溴-1-甲基吡咯烷是一种无色液体，是重要的医药中间体原料。它可用于制备mGluR5受体变构调节剂。

制备方法如下： 在100毫升单口瓶中加入3-羟基-1-甲基吡咯烷（5克），正己烷（50毫升），冰浴冷却10分钟。在此条件下，逐步加入三溴化磷（16.9克）。随后将温度升至回流2小时，并进行冷却处理。使用25%的KOH溶液中和至pH值大于8，然后用乙醚萃取。合并有机相后，再加入50毫升1N盐酸进行萃取。保留水相并调节pH值至大于8，再次用乙醚萃取。最后风干，得到3-溴-1-甲基吡咯烷（约1.1克）。

反应信息

• 作为反应物：
  描述：

  3-溴-1-甲基吡咯烷 在 盐酸 、 氯化亚砜 、 tetraphosphorus decasulfide 、 potassium sulfide 、 亚硝酸丁酯 、 sodium hydride 作用下， 以 氯仿 、 溶剂黄146 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 19.0h， 生成 7-chloro-2-(2-chloroethyl)-2,3-dihydro-4-methyl-1,4-benzoxazepine-5(4H)-thione
  参考文献：
  名称：

  Benzo- and pyrido-1,4-oxazepin-5-ones and -thiones: synthesis and structure-activity relationships of a new series of H1-antihistamines

  摘要：

  A series of novel benzo- and pyrido-1,4-oxazepinones and -thiones which represents a new structural class of compounds possessing H1 antihistaminic activity was synthesized, and the SARs were evaluated. The antihistaminic activity was determined by blockade of histamine-induced lethality in guinea pigs. The sedative potential was determined by comparison of the EEG profiles of the compounds with those of known sedating and nonsedating antihistamines. Several of the compounds were shown to possess potent H1 antihistaminic activity and to be free of the cortical slowing with synchronized waves and spindling activity found in the EEG of sedative antihistamines. One compound, 2-[2-(dimethylamino)ethyl]-3,4-dihydro-4-methylpyrido[3,2-f]-1,4- oxazepine-5(2H)-thione (rocastine) is currently undergoing clinical evaluation as a nonsedating H1 antihistamine.

  DOI：

  10.1021/jm00129a026

文献信息

• Fused aromatic oxazepinones, thiazepinones, diazepinones and sulfur
  申请人：A. H. Robins Company, Inc.

  公开号：US04705853A1

  公开（公告）日：1987-11-10

  Aromatic azepinones and thiones having the formula ##STR1## wherein; A is benzene, naphthalene, quinoline or pyridine; B is oxygen or sulfur; E is oxygen, sulfur or ##STR2## n is 1, 2 or 3; Z is an amino or a heterocyclic nitrogen-containing radical; R is hydrogen, loweralkyl, cycloalkyl or phenylloweralkyl; Y is halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro, amino, loweracetylamino, trifluoromethyl, phenyl or phenyl substituted by one to three Y' radicals selected from halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro, amino, loweracylamino or trifluoromethyl; and having antihistaminic utility, a process for the preparation thereof and chemical intermediates therefor are disclosed.

  本发明揭示了具有以下式子的芳香性氮杂七元酮和硫酮：##STR1## 其中；A是苯，萘，喹啉或吡啶；B是氧或硫；E是氧，硫或##STR2## n为1，2或3；Z是氨基或含氮杂环的杂环基；R是氢，低烷基，环烷基或苯基低烷基；Y是卤素，低烷基，低烷氧基，双低烷基氨基，硝基，氨基，低乙酰氨基，三氟甲基，苯基或由一到三个Y'基团替代的苯基，所述Y'基团从卤素，低烷基，低烷氧基，双低烷基氨基，硝基，氨基，低乙酰氨基或三氟甲基中选择；具有抗组胺作用，揭示了其制备过程和化学中间体。
• Intermediates useful in the preparation of fused aromatic oxazepinones,
  申请人：A. H. Robins Company, Inc.

  公开号：US04727152A1

  公开（公告）日：1988-02-23

  Chemical intermediates having the formula: ##STR1## wherein A represents an aromatic or heterocyclic ring system selected from benzene, a naphthalene, a quinoline or a pyridine in any of its four positions, any of the rings systems are optionally substituted by one or two Y radicals selected from the group consisting of halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro or trifluoromethyl; R is selected from the group consisting of loweralkyl, cycloalkyl or phenylloweralkyl wherein phenyl is optionally substituted by one or two radicals selected from halo, loweralkyl, loweralkoxy, nitro or trifluoromethyl; R.sup.4 and R.sup.5 are selected from hydrogen or loweralkyl; n is 1 or 2; X is selected from chlorine, bromine, or fluorine and E is selected from sulfur, oxygen or ##STR2## and chemical intermediates having the formula: ##STR3## wherein A, R, R.sup.4, R.sup.5, E and n are as defined above and Q is selected from the group consisting of ##STR4## wherein R.sup.3 is hydrogen, an acid neutralizing ion or an esterifying radical; with the proviso that when n is 2 and E is oxygen, A is other than phenyl or substituted phenyl. These chemical intermediates are useful in the preparation of oxazepinones, thiazepinones and diazepinones which exhibit antihistaminic activity.

  化学中间体的化学式为：##STR1## 其中A代表苯、萘、喹啉或吡啶中的任意一个芳香或杂环环系，在任何四个位置上选择，任何一个环系都可以选择由卤、低烷基、低烷氧基、二低烷基氨基、硝基或三氟甲基中的一个或两个Y基团取代；R选自低烷基、环烷基或苯基低烷基，其中苯基可以选择由卤、低烷基、低烷氧基、硝基或三氟甲基中的一个或两个基团取代；R.sup.4和R.sup.5选自氢或低烷基；n为1或2；X选择氯、溴或氟，E选择硫、氧或##STR2## 化学中间体的化学式为：##STR3## 其中A、R、R.sup.4、R.sup.5、E和n的定义如上所述，Q选择##STR4## 其中R.sup.3为氢、酸中和离子或酯化基团；但当n为2且E为氧时，A不是苯或取代苯。这些化学中间体在制备具有抗组胺活性的噁唑烷酮、噻唑烷酮和二嗪烷酮方面非常有用。
• Certain 2,5 and 2,5,6-di- and tri-substituted nicotinic acid
  申请人：A. H. Robins Company, Incorporated

  公开号：US04810795A1

  公开（公告）日：1989-03-07

  Aromatic azepinones and thiones having the formula ##STR1## wherein; A is benzene, naphthalene, quinoline or pyridine; B is oxygen or sulfur; ##STR2## E is oxygen, sulfur or n is 1, 2 or 3; Z is an amino or a heterocyclic nitrogen-containing radical; R is hydrogen, loweralkyl, cycloalkyl or phenyl-loweralkyl; Y is halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro, amino, loweracetylamino, trifluoromethyl, phenyl or phenyl substituted by one to three Y' radicals selected from halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro, amino, loweracylamino or trifluoromethyl; and having antihistaminic utility, a process for the preparation thereof and chemical intermediates therefor are disclosed.

  公开了具有以下公式的芳香族氮杂七元酮和硫酮：##STR1## 其中；A为苯，萘，喹啉或吡啶；B为氧或硫；##STR2## E为氧，硫或n为1、2或3；Z为氨基或含氮杂环的杂环基；R为氢，低烷基，环烷基或苯基-低烷基；Y为卤素，低烷基，低烷氧基，二低烷基氨基，硝基，氨基，低乙酰氨基，三氟甲基，苯基或由一到三个Y'基选择的卤素，低烷基，低烷氧基，二低烷基氨基，硝基，氨基，低乙酰氨基或三氟甲基取代的苯基；具有抗组胺作用，公开了其制备方法和化学中间体。
• CALE, ALBERT D. (JR)
  作者：CALE, ALBERT D. (JR)

  DOI：——

  日期：——
• ——
  作者：CALE A. D.

  DOI：——

  日期：——