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2,3,4,5-tetramethylcyclopentanone | 246870-60-0

中文名称
——
中文别名
——
英文名称
2,3,4,5-tetramethylcyclopentanone
英文别名
2,3,4,5-tetramethylcyclopentan-1-one;tetramethylcyclopentanone;2.3.4.5-Tetramethyl-cyclopentanon-(1)
2,3,4,5-tetramethylcyclopentanone化学式
CAS
246870-60-0
化学式
C9H16O
mdl
——
分子量
140.225
InChiKey
CMLJQZJBJPNNFR-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):
    2.4
  • 重原子数:
    10
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.89
  • 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:
    2,3,4,5-tetramethylcyclopentanone二异丁基氢化铝对甲苯磺酸间氯过氧苯甲酸 作用下, 以 二氯甲烷甲苯 为溶剂, 反应 9.0h, 生成 (3R,4S,5S,6R)-3,4,5,6-tetramethyltetrahydropyran-2(2H)-ol
    参考文献:
    名称:
    扭转对糖基转移反应性的影响
    摘要:
    与母体四氢吡喃基乙缩醛相比,四个取代基对六吡喃糖苷的净作用是将在异头异构体中心的反应性降低> 10 7倍。通过测量四个赤道甲基对4-硝基苯基四氢吡喃基乙缩醛水解速率的影响,可以评估对该因子的空间贡献的大小。尽管甲基取代基的电子效应将提高水解速率,但四个赤道甲基的净效应却降低了4倍,这证明了相反的空间效应估计在两个数量级。糖吡喃糖苷的扭转作用因此对总共10 7贡献了高达50的因子。
    DOI:
    10.1039/b106257n
  • 作为产物:
    描述:
    2,3,4,5-tetramethylcyclopentanone N',N'-dimethylhydrazone 在 periodate 作用下, 生成 2,3,4,5-tetramethylcyclopentanone
    参考文献:
    名称:
    Interconversions of C5H10O+· ions with the oxygen on the first, second and third carbons: Approximately 60 communicating isomers
    摘要:
    确定了氧位于第一、第二和第三碳原子上的某些 C5H10O+- 异构体的 C4H7O+ 和 C3H6O+- 离解产物的结构。第一个产物是 CH3C(OH)CHCH2+,第二个产物是不同比例的 CH3C(OH+)CH2⋅和 CH3⋅CHCHOH+ 。这些结果表明,第一和第三碳上含氧的离子会部分异构为第二碳上含氧的异构体。这和 C5H10O+- 异构体预计可以相互转换的情况表明,在大约 60 种 C5H10O+- 异构体之间存在着可穿越的路径,这表明脂肪族自由基阳离子的相互转换是多么广泛。
    DOI:
    10.1002/jms.1190300315
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文献信息

  • METHOD FOR PREPARING TRANSITION METAL COMPLEXES, TRANSITION METAL COMPLEXES PREPARED USING THE METOD, CATALYST COMPOSITION CONTAINING THE COMPLEXES
    申请人:LEE Choong-Hoon
    公开号:US20110172451A1
    公开(公告)日:2011-07-14
    The present invention provides a novel transition metal complex where a monocyclopentadienyl ligand to which an amido group is introduced is coordinated, a method for synthesizing the complex, and olefin polymerization using the same. The method for preparing a transition metal complex according to the present invention comprises a step of blocking a by-reaction of a nitrogen atom using a compound containing a protecting group, and thus it is possible to prepare a transition metal complex in a simpler manner in a high yield. Further, the transition metal complex according to the present invention has a pentagon ring structure having an amido group connected by a phenylene bridge in which a stable bond is formed in the vicinity of a metal site, and thus, sterically monomers can easily approach the transition metal complex.
    本发明提供了一种新型过渡金属配合物,其中配位了一个含有氨基团的单环戊二烯基配体,以及一种合成该配合物的方法,以及使用该配合物进行烯烃聚合的方法。根据本发明的制备过渡金属配合物的方法包括通过使用含有保护基团的化合物阻止氮原子的副反应的步骤,因此可以以更简单的方式高产率地制备过渡金属配合物。此外,根据本发明的过渡金属配合物具有一个五角形环结构,其中通过苯桥连接的氨基团与金属位点附近形成了稳定的键,因此,立体构型的单体可以轻松接近过渡金属配合物。
  • GAMMA SECRETASE MODULATORS
    申请人:Huang Xianhai
    公开号:US20100137320A1
    公开(公告)日:2010-06-03
    This invention provides novel compounds that are modulators of gamma secretase. The compounds have the formula Also disclosed are methods of modulating gamma secretase activity and methods of treating Alzheimer's Disease using the compounds of formula (I).
    本发明提供了一种新型的化合物,它们是γ-分泌酶的调节剂。这些化合物的化学式如下:(见原文) 此外,本发明还揭示了调节γ-分泌酶活性的方法以及使用化合物(I)治疗阿尔茨海默病的方法。
  • Monocyclopentadienyl complexes of chromium, molybdenum or tungsten
    申请人:——
    公开号:US20030036658A1
    公开(公告)日:2003-02-20
    Substituted monocyclopentadienyl, monoindenyl, monofluorenyl and heterocyclopentadienyl complexes of chromium, molybdenum or tungsten in which at least one of the substituents on the cyclopentadienyl ring carries a donor function which is bonded rigidly, not exclusively via sp 3 -hybridized carbon or silicon atoms, and a process for the polymerization of olefins.
    铬、钼或钨的取代单环戊二烯基、单吲哚基、单萘基和杂环戊二烯基配合物,其中环戊二烯基环上至少一个取代基具有给体功能,通过刚性键合,不仅限于sp3杂化碳或硅原子,以及一种用于烯烃聚合的方法。
  • Transition metal complex, catalyst for olefin polymerization, and process for producing olefin polymer with the same
    申请人:——
    公开号:US20040242410A1
    公开(公告)日:2004-12-02
    The present invention relates to a transition metal complex represented by the formula (I): 1 wherein M represents a Group 4 transition metal; —Y— represents (a): —C(R 1 )(R 20 )-A-, (b): —C(R 1 )(R 20 )-A 1 (R 30 )—, (c): —C(R 1 )=A 1 -, or (d): —C(R 1 )=A 1 -A 2 -R 30 ; A represents a Group 16 element and A 1 and A 2 each represents a Group 15 element; R 1 to R 9 , R 20 , and R 30 are the same or different and each represents an optionally substituted hydrocarbon group, etc.; and X 1 and X 2 are the same or different and each represents a hydrogen atom, a halogen atom, an optionally substituted C 1-10 alkyl group, etc., and an intermediate product thereof, and a catalyst for olefin polymerization which comprises said transition metal complex as a component.
    本发明涉及一种由式(I)表示的过渡金属配合物:1其中M代表4族过渡金属;—Y—表示(a):—C(R1)(R20)-A-,(b):—C(R1)(R20)-A1(R30)—,(c):—C(R1)=A1-,或(d):—C(R1)=A1-A2-R30;A代表16族元素,A1和A2分别代表15族元素;R1至R9、R20和R30相同或不同,每个代表可选取代的碳氢基团等;X1和X2相同或不同,每个代表氢原子、卤原子、可选取代的C1-10烷基团等,以及其中间产物,以及包括所述过渡金属配合物作为组分的烯烃聚合催化剂。
  • TRANSITION METAL COMPLEX, CATALYST FOR OLEFIN POLYMERIZATION, AND PROCESS FOR PRODUCING OLEFIN POLYMER WITH THE SAME
    申请人:HANAOKA Hidenori
    公开号:US20100048933A1
    公开(公告)日:2010-02-25
    The present invention relates to a transition metal complex represented by the formula (I): wherein M represents a Group 4 transition metal; —Y— represents (a): —C(R 1 )(R 20 )-A-, (b): —C(R 1 )(R 20 )-A 1 (R 30 )—, (c): —C(R 1 )=A 1 -, or (d): —C(R 1 )=A 1 -A 2 -R 30 ; A represents a Group 16 element and A 1 and A 2 each represents a Group 15 element; R 1 to R 9 , R 20 , and R 30 are the same or different and each represents an optionally substituted hydrocarbon group, etc.; and X 1 and X 2 are the same or different and each represents a hydrogen atom, a halogen atom, an optionally substituted C 1-10 alkyl group, etc., and an intermediate product thereof, and a catalyst for olefin polymerization which comprises said transition metal complex as a component.
    本发明涉及一种由式(I)表示的过渡金属配合物:其中M代表4族过渡金属;-Y-代表(a):-C(R1)(R20)-A-,(b):-C(R1)(R20)-A1(R30)-,(c):-C(R1)=A1-,或(d):-C(R1)=A1-A2-R30;A代表16族元素,A1和A2各代表15族元素;R1至R9、R20和R30相同或不同,每个代表一个可选取代的碳氢基团等;X1和X2相同或不同,每个代表氢原子、卤原子、可选取代的C1-10烷基团等;以及其中间体产品和以该过渡金属配合物为组分的烯烃聚合催化剂。
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