2-bromo-4-methylvaleryl bromide | 74204-03-8

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 酰卤
• 英文名称: 2-bromo-4-methylvaleryl bromide
• 英文别名: α-bromoisocaproyl bromide；(+/-)-α-bromo-isocaproyl bromide；(+/-)-α-Brom-isocaproylbromid；DL-α-Brom-isocaproylbromid；2-Bromo-4-methylpentanoyl bromide
• CAS: 74204-03-8
• 化学式: C₆H₁₀Br₂O
• 分子量: 257.953
• InChiKey: GKIWPVILKNSUPB-UHFFFAOYSA-N

物化性质

• 沸点：
  210.9±13.0 °C(Predicted)
• 密度：
  1.699±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  9
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-bromo-4-methylvaleryl bromide 在 sodium hydroxide 、 水 作用下， 生成 N-(N,N-dimethyl-leucyl)-glycine
  参考文献：
  名称：

  Fischer,E.; Gluud, Justus Liebigs Annalen der Chemie, 1909, vol. 369, p. 250

  摘要：

  DOI：

文献信息

• Synthesis of 1,4-benzodiazepin-3-ones and 1,5-benzodiazocin-4-ones by addition of Grignard reagents to derivatives of o-aminobenzonitrile
  作者：Birgitta Pettersson、Anna Rydbeck、Jan Bergman

  DOI：10.1039/b819260j

  日期：——

  Addition of organometallics to N-(α-haloacyl)-o-aminobenzonitrile resulted in the formation of 2,5-disubstituted 1,4-benzodiazepin-3-ones, whereas N-(β-haloacyl)-o-aminobenzonitrile gave 2,6-disubstituted 1,5-benzodiazocin-4-ones under similar conditions. Initial cylization of N-(β-haloacyl)-o-aminobenzonitrile to obtain the corresponding lactam (e.g.α,α-dimethyl-N-(2-cyanophenyl)-β-lactam) increased the yield of 1,5-benzodiazocin-4-ones significantly. Somewhat surprisingly, addition of lithium reagents to N-(β-haloacyl)-o-aminobenzonitrile gave 4,4-disubstituted quinazolines viaGrob fragmentation.

  向N-(α-卤代酰基)-邻氨基苯甲腈中添加有机金属化合物，可形成2,5-二取代的1,4-苯并二氮平-3-酮，而在类似条件下，向N-(β-卤代酰基)-邻氨基苯甲腈中添加则得到2,6-二取代的1,5-苯并二氮杂环-4-酮。初步环化N-(β-卤代酰基)-邻氨基苯甲腈以获得相应的内酰胺（例如α,α-二甲基-N-(2-氰基苯基)-β-内酰胺）显著提高了1,5-苯并二氮杂环-4-酮的产率。稍微出人意料的是，向N-(β-卤代酰基)-邻氨基苯甲腈中添加锂试剂通过Grob碎片化反应得到了4,4-二取代的喹唑啉。
• Asymmetric Nickel-Catalyzed Negishi Cross-Couplings of Secondary α-Bromo Amides with Organozinc Reagents
  作者：Christian Fischer、Gregory C. Fu

  DOI：10.1021/ja0506509

  日期：2005.4.1

  A Ni/Pybox catalyst achieves the asymmetric cross-coupling of secondary alpha-bromo amides with organozinc reagents. The process tolerates a variety of functional groups and affords the desired product in good yield and in high enantiomeric excess.

  Ni/Pybox 催化剂实现了仲 α-溴酰胺与有机锌试剂的不对称交叉偶联。该方法耐受多种官能团，并以良好的产率和高对映体过量提供所需的产物。
• 5<i>H</i>-Oxazol-4-ones as Building Blocks for Asymmetric Synthesis of α-Hydroxycarboxylic Acid Derivatives
  作者：Barry M. Trost、Kalindi Dogra、Maurizio Franzini

  DOI：10.1021/ja031539a

  日期：2004.2.1

  little-known heterocyclic ring system, are readily available via a microwave-assisted, sodium fluoride catalyst cyclization of mono-alpha-haloimides, which in turn are accessed by N-acylation of benzamides with alpha-bromo acid halides. Terminally substituted allyl systems serve as excellent substrates for Mo-catalyzed asymmetric allylic alkylation. The resultant products are formed with excellent ees involving

  5H-烷基-2-苯基-恶唑-4-酮是一种鲜为人知的杂环系统，可通过微波辅助的氟化钠催化剂环化单-α-卤代酰亚胺轻松获得，而后者又可通过 N-用α-溴酰卤酰化苯甲酰胺。末端取代的烯丙基体系可作为 Mo 催化的不对称烯丙基烷基化的优良底物。生成的产物具有优异的 ee，包括衍生自反式-1,2-二氨基环己烷的 N,N'-双-吡啶甲酰胺和三（羰基）环庚三烯钼的催化剂。除了苯类之外，烯丙基碳酸酯部分上的非苯类芳香族和乙烯基取代基提供了良好到优异的区域选择性和非对映选择性以及优异的对映选择性。杂环上的取代基包括甲基、正丁基、烯丙基、异丁基、异丙基和环己基。产品中双键的存在允许它们通过双键的化学性质进一步修饰，包括复分解。产物在碱性条件下水解以提供α-羟基酰胺。
• N-(Aminoacyl) and N-(aminoalkyl) derivatives of 4-cyclopentylaniline and N-ethyl-4-cyclopentylaniline; Synthesis and pharmacological screening
  作者：Zdeněk Vejdělek、Marie Bartošová、Miroslav Protiva

  DOI：10.1135/cccc19830156

  日期：——

  Acylation of 4-cyclopentylaniline (I) with chloracetyl chloride, 3-chloropropionyl chloride, 4-chlorobutyryl chloride and 2-bromo-4-methylvaleryl bromide gave the halogenoacyl derivatives IV - VII out of which the first two were subjected to substitution reactions with diethylamine and piperidine. The N-(aminoacyl) derivatives VIII - XI obtained were reduced with lithium aluminium hydride to the N-(aminoalkyl) derivatives XII and XV. N-Ethyl-4-cyclopentylaniline (XVI), prepared by reduction of N-(4-cyclopentylphenyl)acetamide (II), was similarly transformed via the chloroacetyl derivative XVII to the amide XVIII and the diamine XIX. Salts of the compounds prepared (amino amides and diamines) bring about in higher doses central excitation which is apparently in close connection with the found discoordinating effect of a part of products (VIII - XI, XIII) in the rotarod test, further with the antireserpine effects in the tests of antagonization of reserpine ptosis and hypothermia (VIII, X, XII, XIII) and finally with the anorectic effect of compound X. All substances showed a mild spasmolytic effect of the anticholinergic type. On the other hand, the expected local anaesthetic effect was found only with compounds VIII, XVIII, XIX.

  用氯乙酰氯、3-氯丙酰氯、4-氯丁酰氯和2-溴-4-甲基戊酰溴对4-环戊基苯胺（I）进行酰化反应，得到卤代酰衍生物IV-VII，其中前两种被置于取代反应中，与二乙胺和哌啶反应。所得的N-(氨基酰)衍生物VIII-XI被氢化铝锂还原为N-(氨基烷基)衍生物XII和XV。通过还原N-(4-环戊基苯基)乙酰胺(II)制备的N-乙基-4-环戊基苯胺(XVI)也被类似地转化为氯乙酰衍生物XVII，然后形成酰胺XVIII和二胺XIX。所制备的化合物盐（氨基酰胺和二胺）在较高剂量下引起中枢兴奋，这显然与部分产物（VIII-XI，XIII）在旋转杆试验中发现的失调效应密切相关，进一步与抗利血平效应在抗利血平眼下垂和低体温测试中（VIII，X，XII，XIII）以及化合物X的厌食效应有关。所有物质均表现出轻微的抗胆碱能痉挛作用。另一方面，预期的局部麻醉效应仅在化合物VIII，XVIII，XIX中发现。
• INDOLE DERIVATIVES, PREPARATION THEREOF, AND DRUG FOR PREVENTING AND TREATING NEPHRITIS CONTAINING SAME
  申请人：OTSUKA PHARMACEUTICAL CO., LTD.

  公开号：EP0411150A1

  公开（公告）日：1991-02-06

  This invention relates to indole derivatives of general formula (1) and salts thereof, a method for preparing same, and applications thereof in the prevention and treatment of nephritis, wherein R represents hydrogen, cyano or one of various other substituents, 1 is an integer of 1 or 2, R' represents hydrogen, one of various substituents or a group of formula (2) (wherein A represents a single bond, -CH(OH)-, -CH=, -C(=0)- or alkyl, and R2, R3, R4, R5 and R6 each represents one of various substituents),and Z represents hydrogen or a group of formula (2) provided that R1 represents a group of formula (2) when Z represents hydrogen.

  本发明涉及通式(1)的吲哚衍生物及其盐、制备方法以及在预防和治疗肾炎中的应用，其中R代表氢、氰基或其它各种取代基之一，1为1或2的整数，R'代表氢、其中 A 代表单键、-CH(OH)-、-CH=、-C(=0)- 或烷基，R2、R3、R4、R5 和 R6 各代表各种取代基之一），Z 代表氢或式（2）基团，但当 Z 代表氢时，R1 代表式（2）基团。