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(E)-1-bromo-2-methyl-2-pentene | 68996-15-6

中文名称
——
中文别名
——
英文名称
(E)-1-bromo-2-methyl-2-pentene
英文别名
(E)-1-bromo-2-methylpent-2-ene;1-bromo-2-methyl-2(E)-pentene;1-bromo-2-methyl-2-pentenone;1-bromo-2-methyl-pent-2-ene
(E)-1-bromo-2-methyl-2-pentene化学式
CAS
68996-15-6;67286-25-3
化学式
C6H11Br
mdl
——
分子量
163.057
InChiKey
HZBKCOQFEBKXAC-GQCTYLIASA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 沸点:
    150.5±9.0 °C(Predicted)
  • 密度:
    1?+-.0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.9
  • 重原子数:
    7
  • 可旋转键数:
    2
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.67
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    0

反应信息

  • 作为反应物:
    参考文献:
    名称:
    在温和条件下无损去除α-取代的N-酰基冰片烷10,2-苏丹娜中的Bornanesultam助剂:对映体纯的酮和醛的有效合成
    摘要:
    α-替补Ñ -acylbornane-10,2 -sultams 6,9,和10可以被转换成纯对映异构体酮5. 13,和14,分别经由涉及已知mercaptolysis反应,随后通过的[Fe两步过程(acac)3 ]-介导的所得S-苄基硫酯与格氏试剂的偶联。此外,对映体纯的醛23可以通过(i-Bu)2的一步还原从α-取代的N-酰基冰片烷-10,2-杜鹃花6获得。AIH。在切割反应过程中未观察到在α-手性中心的差向异构体,由此回收了手性助剂,硼烷-10,2-sultam 1或ent - 1。通过使用这种方法,可以制备几种天然产物或其前体。
    DOI:
    10.1002/hlca.19970800502
  • 作为产物:
    描述:
    (2E)-2-methyl-2-penten-1-ol三溴化磷 作用下, 以 四氢呋喃 为溶剂, 以61%的产率得到(E)-1-bromo-2-methyl-2-pentene
    参考文献:
    名称:
    Asymmetric induction in manganese(III)-based oxidative free-radical cyclizations of phenylmenthyl acetoacetates and 2,5-dimethylpyrrolidine acetoacetamides
    摘要:
    Mn(III)-based oxidative free-radical cyclization of phenylmenthyl ester 1e afforded 90% of 13 with 86% de. Cyclization of 31b provided 56% of (+)-podocarpic acid precursor 32e with 82% de. The direction of de was opposite in these two cases. Oxidative cyclization of a-methyl beta-keto ester 44b gave a 1:1.6 mixture of 46b and 47b while alpha-propyl beta-keto ester 44d produced a > 10:1 mixture of 46d and 47d indicating that the extent and direction of de is dependent on the size of the alpha-substituent The reaction proceeds through transition states 12 and 56 with large alpha-substituents and through transition states 19 and 57 with small a-substituents. The de depends on the double-bond substitution pattern as shown by the decreased de with 37b and 37d, and selectivity in the 5-exo cyclization of 64b, 65b, 70b, and 71b is low.
    DOI:
    10.1021/jo00079a006
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文献信息

  • Radical Aza-Cyclization of α-Imino-oxy Acids for Synthesis of Alkene-Containing <i>N</i>-Heterocycles via Dual Cobaloxime and Photoredox Catalysis
    作者:Jia-Lin Tu、Jia-Li Liu、Wan Tang、Ma Su、Feng Liu
    DOI:10.1021/acs.orglett.0c00224
    日期:2020.2.7
    Nitrogen-containing heterocycles are prevalent in both naturally and synthetically bioactive molecules. We report herein an unprecedented protocol for radical aza-cyclization of α-imino-oxy acids with pendant alkenes via synergistic photoredox and cobaloxime catalysis. With or without alkenes as the intermolecular cross-coupling partners, the transformation provides a variety of corresponding alkene-containing dihydropyrrole
    天然和合成生物活性分子中都普遍存在含氮杂环。我们在本文中报道了一种空前的协议,用于通过协同光氧化还原和钴肟催化的α-亚氨基-氧酸与侧链烯烃的氮杂氮环化。在有或没有烯烃作为分子间交叉偶联伴侣的情况下,转化以令人满意的产率提供了多种相应的含烯烃的二氢吡咯产物。在存在外部烯烃的情况下,串联反应产生具有优异的化学和立体选择性的E-选择性偶联产物。
  • Non-destructive Removal of the Bornanesultam Auxiliary in ?-SubstitutedN-Acylbornane-10,2-sultanis under Mild Conditions: An efficient synthesis of enantiomerically pure ketones and aldehydes
    作者:Wolfgang Oppolzer、Christophe Darcel、Patrick Rochet、Stephane Rosset、Jef De Brabander
    DOI:10.1002/hlca.19970800502
    日期:1997.8.11
    two-step procedure involving a known mercaptolysis reaction followed by an [Fe(acac)3]-mediated coupling of the resulting S-benzyl thioesters with Grignard reagents. Furthermore, enantiomerically pure aldehydes 23 can be obtained from α-substituted N-acylbornane-10,2-sultams 6via a one-step reduction with (i-Bu)2AIH. No epimerization at the α-chiral center is observed during the cleavage reaction whereby
    α-替补Ñ -acylbornane-10,2 -sultams 6,9,和10可以被转换成纯对映异构体酮5. 13,和14,分别经由涉及已知mercaptolysis反应,随后通过的[Fe两步过程(acac)3 ]-介导的所得S-苄基硫酯与格氏试剂的偶联。此外,对映体纯的醛23可以通过(i-Bu)2的一步还原从α-取代的N-酰基冰片烷-10,2-杜鹃花6获得。AIH。在切割反应过程中未观察到在α-手性中心的差向异构体,由此回收了手性助剂,硼烷-10,2-sultam 1或ent - 1。通过使用这种方法,可以制备几种天然产物或其前体。
  • Domino Carbopalladation‐Carbonylation: Investigation of Substrate Scope
    作者:Brinton Seashore‐Ludlow、Jakob Danielsson、Peter Somfai
    DOI:10.1002/adsc.201100678
    日期:2012.1
    This work gives an in depth account of our domino carbopalladationcarbonylation method for substrates possessing β‐hydrogens. The scope of the method is examined for allylic amines containing trisubstituted olefins and we detail our attempts toward the diastereospecific synthesis of contiguous quaternary centers using this technology. The results give key insights into the relative rates of the competing
    这项工作深入说明了我们对具有β氢的底物的多米诺骨碳酰羰基化方法。对于包含三取代烯烃的烯丙基胺,我们研究了该方法的范围,并详细介绍了使用该技术对非连续特定季中心进行非对映特异性合成的尝试。结果提供了对烷基钯中间体竞争反应的相对速率的关键见解,这对于理解和开发新的多米诺骨牌工艺至关重要。
  • Asymmetric synthesis of (−)-denticulatins A and B via group-selective aldolization of a meso dialdehyde with a chiral N-propionylsultam
    作者:Wolfgang Oppolzer、Jef De Brabander、Eric Walther、Gérald Bernardinelli
    DOI:10.1016/0040-4039(95)00787-d
    日期:1995.6
    Aldolization of meso dialdehyde 3 with a borylenolate obtained from chiral N-propionylsultam 4 yields efficiently lactols 5 with simultaneous generation of five stereogenic centers.Dithioketalization/O-desilylation of 5 affords acyclic diol 9 which is converted into the marine polypropionates 1a and 1bvia the asymmetric alkylation of N-propionyltoluenesultam 11 and the aldol coupling 10 + 15 → 16.
    的醛醇缩合内消旋二醛3与手性获得的borylenolate Ñ -propionylsultam 4倍的产率有效地乳醇5与同时产生的5立构centers.Dithioketalization / ø -desilylation的5得到无环二醇9被转换为海洋聚丙1A和1B通过在N-丙酰基甲苯磺酰胺11的不对称烷基化和羟醛偶联10 + 15→16。
  • [EN] 3,6-DISUBSTITUTED AZABICYCLO HEXANE DERIVATIVES AS MUSCARINIC RECEPTOR ANTAGONISTS<br/>[FR] DERIVES DE 3,6-DISUBSTITUES AZABICYCLO HEXANE UTILISES EN TANT QU'ANTAGONISTES DU RECEPTEUR DE MUSCARINIQUE
    申请人:RANBAXY LAB LTD
    公开号:WO2004067510A1
    公开(公告)日:2004-08-12
    This invention generally relates to derivatives of 3,6 disubstituted azabicyclo hexanes.The compounds of this invention can function as muscarinic receptor antagonists and can be used for the treatment of various diseases of the respiratory, urinary and gastrointestinal systems mediated through muscarinic receptors.The invention also relates to pharmaceutical compositions containing the compounds of the present invention and the methods of treating the diseases mediated through muscarinic receptors.
    这项发明通常涉及3,6-二取代氮杂环己烷衍生物。本发明的化合物可以作为毒蕈碱受体拮抗剂发挥作用,并可用于治疗通过毒蕈碱受体介导的呼吸道、泌尿道和消化系统的各种疾病。该发明还涉及含有本发明化合物的药物组合物以及治疗通过毒蕈碱受体介导的疾病的方法。
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