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p-methoxybenzyllithium | 17179-20-3

中文名称
——
中文别名
——
英文名称
p-methoxybenzyllithium
英文别名
——
p-methoxybenzyllithium化学式
CAS
17179-20-3
化学式
C8H9LiO
mdl
——
分子量
128.1
InChiKey
WMFYFMGDRRARNH-UHFFFAOYSA-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

计算性质

  • 辛醇/水分配系数(LogP):
    1.47
  • 重原子数:
    10
  • 可旋转键数:
    1
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.12
  • 拓扑面积:
    9.2
  • 氢给体数:
    0
  • 氢受体数:
    1

反应信息

  • 作为反应物:
    描述:
    p-methoxybenzyllithium四氢呋喃 为溶剂, 生成
    参考文献:
    名称:
    过渡金属卡宾配合物的物理有机化学。24. 苯基取代的(苄基甲氧基卡宾)五羰基铬(0)配合物的热力学和动力学酸度。是否存在过渡状态失衡?†
    摘要:
    OH(-) 和一系列脂肪族伯胺和脂环族仲胺在 50% MeCN-50% 水 (v/v) 中对苯基取代的(苄基甲氧基卡宾)五羰基铬(0)配合物进行可逆去质子化的动力学研究) 在 25 摄氏度时报告。确定了 Brønsted alpha(CH) 值(取决于卡宾复合酸度)和 beta(B) 值(取决于胺碱度)。根据目前关于涉及由 pi 受体激活的碳酸的质子转移的概念,预计 alpha(CH) 将大大超过 beta(B),这是此类反应特征的过渡态不平衡的结果。然而,我们发现 alpha(CH) 和 beta(B) 具有基本相同的值,接近 0.5。
    DOI:
    10.1021/ja012000k
  • 作为产物:
    描述:
    lithium chloride 作用下, 以 四氢呋喃 为溶剂, 生成 p-methoxybenzyllithium
    参考文献:
    名称:
    Vanermen, Guido; Toppet, Suzanne; Van Beylen, Marcel, Journal of the Chemical Society. Perkin transactions II, 1986, p. 707 - 714
    摘要:
    DOI:
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文献信息

  • Influence of angle strain on the stereochemistry of the nucleophilic displacements at silicon: Stereochemical behaviour of optically active systems containing both an intracyclic silicon atom and an intracyclic leaving group.
    作者:R. Corriu、C. Guerin
    DOI:10.1016/s0022-328x(00)93309-6
    日期:1980.8
    A detailed study of the stereochemistry of nucleophilic displacements at silicon by organometallics is reported for optically active systems containing both an intracyclic silicon atom and an intracyclic leaving group (1-naphtyl-2 phenyl-2 sila-2 oxa-1 cyclopentane and -hexane derivatives). The stereochemistry is always controlled by the electronic character of the nucleophile, but the strained geometry
    对于包含环内原子和环内离去基团(1-基-2苯基-2 sila-2 oxa-1环戊烷和-己烷衍生物)的光学活性系统,已报道了有机属在上亲核取代的立体化学的详细研究。 )。立体化学总是由亲核试剂的电子特性的控制,但一个五元环的应变几何指示立体化学朝临界病例反转(烯丙基锂,的LiAlH 4 /4的CuI,p -CH 3 OC 6 H ^ 4 CH 2李)。对结果和先前报道的关于外​​环离去基团的结果的分析允许评估角度应变对上的立体化学的影响。随角应力的变化,随着σ ★(SiX)轨道的杂化变化,立体化学的逐渐位移得以解释[1]。
  • Reductive lithiation of alkyl phenyl sulfides in diethyl ether. A ready access to α,α-dialkylbenzyllithiums
    作者:Constantinos G. Screttas、Georgios A. Heropoulos、Maria Micha-Screttas、Barry R. Steele、Dimitrios P. Catsoulacos
    DOI:10.1016/s0040-4039(03)01371-6
    日期:2003.7
    Diethyl ether is a convenient solvent for the conversion of benzylic phenyl sulfides to the corresponding organolithiums by an uncatalyzed reductive metalation, while catalysis by naphthalene is required to achieve the same reaction for alkyl phenyl sulfides. The addition of magnesium 2-ethoxyethoxide to solutions of unstable alkyllithiums prepared in this way provides storable reagents.
    乙醚是通过未催化的还原性属化将苄基苯基硫化物转化为相应的有机锂的方便溶剂,而为实现烷基苯基硫化物的相同反应,则需要用进行催化。将2-乙氧基乙氧基添加到以此方式制备的不稳定烷基的溶液中提供了可储存的试剂。
  • 2-Benzyl-4-piperidones useful as intermediates in the production of
    申请人:ACF Chemiefarma N.V.
    公开号:US04012392A1
    公开(公告)日:1977-03-15
    6,7-BENZOMORPHAN DERIVATIVES HAVING ANALGESIC AND MORPHINE-ANTAGONISTIC PROPERTIES ARE OF THE FORMULA ##STR1## in which the substituents R are either lower alkyl groups or groups which, together with the carbon atom to which they are bonded, form a cycloaliphatic ring, and the substituents R.sub.1, R.sub.2 and R.sub. 3 may or may not be made and, if made, R.sub.1 represents either a hydrogen atom or an alkyl, haloalkyl, alkenyl, alkinyl, aralkyl, cycloalkenyl, cycloalkylalkyl, cycloalkenylalkyl or cycloalkylidine-alkyl group, R.sub. 2 is an alkyl, aryl, heteroaryl or aralkyl group, and R.sub. 3 is a hydrogen atom or an hydroxy, alkoxy, alkoxy-alkoxy or acyloxy group. Such 6,7-benzomorphans may be in the form of their optically active enantiomers and/or their therapeutically acceptable salts. There are also disclosed methods for producing such 6,7-benzomorphan derivatives, and intermediates useful in such production.
    具有镇痛和吗啡拮抗性质的6,7-苯吗啡生物的结构式为##STR1##其中取代基R可以是较低的烷基基团或者与其结合的碳原子形成环状脂肪环的基团,取代基R.sub.1、R.sub.2和R.sub.3可以存在也可以不存在,如果存在,R.sub.1可以表示氢原子或者烷基、卤代烷基、烯基、炔基、芳基烷基、环烯基、环烷基烷基、环烯基烷基或环烷基亚烯基烷基,R.sub.2是烷基、芳基、杂环芳基或芳基烷基,R.sub.3是氢原子或羟基、烷氧基、烷氧基-烷氧基或酰氧基基团。这样的6,7-苯吗啡类化合物可以是其光学活性对映体和/或其治疗上可接受的盐的形式。还公开了生产这种6,7-苯吗啡生物的方法,以及在这种生产中有用的中间体。
  • Novel intermediate and processes for its preparation and conversion into a pharmacologically-active agent
    申请人:——
    公开号:US20030195376A1
    公开(公告)日:2003-10-16
    Processes for the preparation of Venlafaxine (IX) via the novel epoxy-nitrile intermediate (I), which when subjected to hydrogenation forms compound (X), and may subsequently be reduced to yield the desired product (IX). The epoxy-nitrile intermediate (I) itself may be synthesised via various alternative reaction strategies, from a range of starting materials. E.g. 4-methoxy-benzaldehyde (VI), upon treatment with cyclohexyl magnesium bromide yields compound (V). This in turn may be oxidised to yield compound (III), which forms compound (II) on treatment with an (x-keto-halogenation agent. Cyanation of compound (II), then yields the desired epoxy nitrile intermediate (I), from which Venlafaxine (IX) may be synthesised.
    通过新颖的环氧腈中间体(I)制备文拉法辛(IX)的过程,当经过氢化反应形成化合物(X)后,可以随后还原以产生所需的产物(IX)。环氧腈中间体(I)本身可以通过各种不同的反应策略,从一系列起始材料合成。例如,4-甲氧基苯甲醛(VI)在与环己基反应后产生化合物(V)。这反过来可以被氧化成化合物(III),在与(x-酮卤代试剂)处理后形成化合物(II)。化合物(II)的化反应,然后产生所需的环氧腈中间体(I),从中可以合成文拉法辛(IX)。
  • COORDINATION COMPLEX SYSTEM COMPRISING TAUTOMERIC LIGANDS
    申请人:Reek Joost Nikolaas Hendrik
    公开号:US20110003959A1
    公开(公告)日:2011-01-06
    The invention relates to a coordination complex system comprising a ligand having the formula: R 1 —SO 2 —NH—P (XR 2 ) 2 (1a); or R 1 —SO 2 —N═PH (XR 2 ) 2 (1b); or R 1 —SO(OH)═N—P(XR 2 ) 2 (1c); wherein X is independently O, S, NH, or a bond; R 1 and R 2 are independently selected from hydrogen and substituted or unsubstituted alkyl or aryl; wherein at least one equivalent of the ligand is complexed to an equivalent of a metal selected from a transition metal and lanthanide. The invention also relates to the use of said coordination complexes as catalysts in the hydroformylation, hydrogenation, transfer hydrogenation, hydrocyanation, polymerization, isomerization, carbonylation, cross-coupling, metathesis, CH activation, allylic substitution, aldol condensation, or Michael addition.
    本发明涉及一种配位复合物系统,其包括具有以下式子的配体:R1—SO2—NH—P(XR2)2(1a);或R1—SO2—N═PH(XR2)2(1b);或R1—SO(OH)═N—P(XR2)2(1c);其中X独立地为O,S,NH或键;R1和R2独立地选择氢和取代或未取代的烷基或芳基;其中至少一个配体当量与从过渡属和属中选择的属当量结合。本发明还涉及所述配位复合物在氢甲酰化、加氢、转移加氢、加、聚合、异构化、羰基化、交叉偶联、交换反应、CH活化、烯丙基取代、醛缩合或迈克尔加成中作为催化剂的用途。
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