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4-甲基-4-戊烯-1-基溴化镁 | 72535-09-2

中文名称
4-甲基-4-戊烯-1-基溴化镁
中文别名
——
英文名称
4-methyl-4-penten-1-ylmagnesium bromide
英文别名
(4-methylpent-4-ene-1-yl)magnesium bromide;4-Methylpent-4-enyl magnesium bromide;4-methyl-4-pentenyl magnesiumbromide;4-methyl-4-pentenylmagnesium bromide;4-methylpent-4-enylmagnesium bromide;(4-methyl-pent-4-enyl)-magnesium bromide
4-甲基-4-戊烯-1-基溴化镁化学式
CAS
72535-09-2
化学式
C6H11BrMg
mdl
——
分子量
187.362
InChiKey
JIFTZMBRSUWZQI-UHFFFAOYSA-M
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

计算性质

  • 辛醇/水分配系数(LogP):
    2.78
  • 重原子数:
    8.0
  • 可旋转键数:
    4.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.67
  • 拓扑面积:
    0.0
  • 氢给体数:
    0.0
  • 氢受体数:
    0.0

反应信息

  • 作为反应物:
    描述:
    4-甲基-4-戊烯-1-基溴化镁 在 lithium aluminium tetrahydride 、 对甲苯磺酸 作用下, 以 四氢呋喃正己烷 为溶剂, 反应 48.0h, 生成 5β,7α,10α-trimethyl-11-hydroxytricyclo<5.3.1.01,5>undecane
    参考文献:
    名称:
    Total synthesis of (.+-.)-isocomene and related studies
    摘要:
    DOI:
    10.1021/ja00391a016
  • 作为产物:
    参考文献:
    名称:
    Unsaturated carboxylic acids and esters
    摘要:
    合成和中间体,用于制备对圣何塞介壳虫(Quadraspidiotus perniciosus)的控制有用的昆虫信息素。
    公开号:
    US04264518A1
  • 作为试剂:
    描述:
    (-)-8-phenylmenthyl pyruvate4-甲基-4-戊烯-1-基溴化镁 作用下, 以 乙醚 为溶剂, 反应 7.0h, 以62%的产率得到(1R)-8-phenylmenthyl (2S)-2-hydroxy-2,6-dimethyl-6-heptenoate
    参考文献:
    名称:
    Synthesis of (-)- and (+)-frontalin
    摘要:
    DOI:
    10.1021/jo00376a081
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文献信息

  • Asymmetric synthesis based on chiral diamines having pyrrolidine ring
    作者:Teruaki Mukaiyama
    DOI:10.1016/s0040-4020(01)93286-7
    日期:——
    Various highly stereoselective asymmetric reactions based on chiral diamines having pyrrolidine ring are described. Some of these reactions have been successfully applied to the syntheses of natural products.
    描述了基于具有吡咯烷环的手性二胺的各种高度立体选择性的不对称反应。这些反应中的一些已经成功地应用于天然产物的合成。
  • Total Syntheses of Epothilones B and D
    作者:Jae-Chul Jung、Rajashaker Kache、Kimberly K. Vines、Yan-Song Zheng、Panicker Bijoy、Muralikrishna Valluri、Mitchell A. Avery
    DOI:10.1021/jo048742o
    日期:2004.12.1
    A convergent, total synthesis of epothilones B (2) and D (4) is described. The key steps are Normant coupling to establish the desired (Z)-stereochemistry at C12−C13, Wadsworth−Emmons olefination of methyl ketone 28 with the phosphonate ester 8, diastereoselective aldol condensation of aldehyde 5 with the enolate of keto acid derivatives to form the C6−C7 bond, selective deprotection of acid 52, and
    描述了收敛的全合成的埃坡霉素B(2)和D(4)。关键步骤是通过Normant偶联在C12-C13上建立所需的(Z)-立体化学,Wadsworth-Emmons甲基酮28与膦酸酯8的烯键化,醛5与醛酸与酮酸生物的烯酸酯的非对映选择性醛醇缩合以形成C6-C7键,酸52的选择性脱保护和大内酯化。
  • Rearrangement of the Grignard reagent from 1-methylcyclobutylmethyl bromide: origins of the methyl substituent effect
    作者:E.Alexander Hill、Marc W. Hallade
    DOI:10.1016/0022-328x(88)83115-2
    日期:1988.9
    leads to a small decrease (ca. 0.45) in the rate of the ring cleavage rearrangement of cyclobutylmethylmagnesium bromide. Comparison with literature data for 3- and 5-membered rings indicates that the methyl substituent shifts the equilibrium in the direction of ring cleavage, mostly by stabilization of the double bond of the open isomer, and possibly partly by destabilization of the organometallic function
    1-甲基取代导致环丁基甲基溴化镁的环裂解重排速率小幅下降(约0.45)。与3元和5元环的文献数据比较表明,甲基取代基会在开环方向上使平衡发生位移,这主要是通过稳定开放异构体的双键,也可能是部分破坏了属的有机属功能。环状异构体。反应速率在两个方向上都降低了,这可能是由于过渡态空间斥力增加所致。
  • .alpha.-Hydroxyaldehyde and a process for preparing the same
    申请人:Sumitomo Chemical Company, Limited
    公开号:US04337346A1
    公开(公告)日:1982-06-29
    An optically active or racemic .alpha.-hydroxyaldehyde represented by the general formula (2), ##STR1## wherein R.sub.1 represents a C.sub.6 -C.sub.14 aryl group, C.sub.1 -C.sub.10 alkyl group, C.sub.3 -C.sub.10 alkenyl group, C.sub.2 -C.sub.10 alkynyl group, C.sub.7 -C.sub.14 aralkyl group, or a group containing a functional group in the organic portion of said groups and R.sub.2 represents a C.sub.1 -C.sub.10 alkyl group, C.sub.2 -C.sub.10 alkenyl group, C.sub.2 -C.sub.10 alkynyl group, C.sub.7-C.sub.14 aralkyl group, C.sub.6 -C.sub.14 aryl group, or a group containing a functional group in the organic portion of these groups, which is an important intermediate for preparation of pharmaceuticals and agricultural chemicals, and prepared by allowing an optically active or racemic compound represented by the general formula (1), ##STR2## (wherein A represents a C.sub.6 -C.sub.14 aryl group or a C.sub.1 -C.sub.4 alkyl or alkoxy group- or halogen-substituted C.sub.6 -C.sub.14 aryl group and R.sub.1 is as defined above) to react with a Grignard reagent, and thereafter hydrolyzing the reaction product.
    一种光学活性或拉氏体的α-羟基醛,由通式(2)表示,其中R₁代表C₆-C₁₄芳基、C₁-C₁₀烷基、C₃-C₁₀烯基、C₂-C₁₀炔基、C₇-C₁₄芳基烷基或含有有机部分中的官能团的基团,R₂代表C₁-C₁₀烷基、C₂-C₁₀烯基、C₂-C₁₀炔基、C₇-C₁₄芳基烷基、C₆-C₁₄芳基或含有这些基团的有机部分中的官能团的基团,这是制备药物和农药的重要中间体,通过让通式(1)表示的光学活性或拉氏体化合物(其中A代表C₆-C₁₄芳基或C₁-C₄烷基或烷氧基-或卤素取代的C₆-C₁₄芳基,R₁如上定义)与格氏试剂反应,然后解反应产物制备而成。
  • Use of Cyclopropanols as Conformational Constraints in RCM
    作者:Ivan L. Lysenko、Hyung Goo Lee、Jin Kun Cha
    DOI:10.1021/ol0605631
    日期:2006.6.1
    [reaction: see text] Sequential application of the Kulinkovich cyclopropanation of carboxylic esters and RCM of the resulting cis-dialkenyl-tethered cyclopropanols provides an expedient route to functionalized medium-sized carbocycles. Subsequent elaboration of the cyclopropanol functionality, such as one-carbon ring expansion, to afford synthetically useful alpha,beta-enones is also worth noting.
    [反应:见正文]羧酸酯的库林科维奇环丙烷化的顺序应用和所得顺式-二烯基连接的环丙醇的RCM可以为官能化的中型碳环提供便利的途径。随后值得一提的是对环丙醇官能度(例如单碳环扩环)的详细说明,以提供合成上有用的α,β-烯酮。
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