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4,5-dimethylcyclopent-2-en-1-one | 24810-59-1

中文名称
——
中文别名
——
英文名称
4,5-dimethylcyclopent-2-en-1-one
英文别名
4,5-dimethyl-2-cyclopentenone;4,5-Dimethyl-2-cyclopenten-1-on
4,5-dimethylcyclopent-2-en-1-one化学式
CAS
24810-59-1
化学式
C7H10O
mdl
——
分子量
110.156
InChiKey
BZVMUEZSBHAIJA-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

物化性质

  • 沸点:
    162.1±10.0 °C(Predicted)
  • 密度:
    0.929±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.4
  • 重原子数:
    8.0
  • 可旋转键数:
    0.0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.57
  • 拓扑面积:
    17.07
  • 氢给体数:
    0.0
  • 氢受体数:
    1.0

上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    参考文献:
    名称:
    Specificities of the ?-Alkynone-Cyclization
    摘要:
    Spezifitäten der α‐Alkinon CyclisierungDie Regio‐ und Stereo spezifitäten der α‐Alkinon‐Cyclisierung, einer thermischen Umwandlung von Alkinyl‐alkyl‐ketonen, welche in β′‐Stellung mindestens ein H‐Atom tragen, zu 2‐Cyclopentenonen wurden untersucht. Cyclisierung zum höher substituierten C(β′)‐Atom ist dabei bevorzugt, vorausgesetzt, dass die zur Insertion zur Verfügung stehende C(β′), H‐Bindung zur Propioloylseitenkette eine möglichst synplanare Anordnung einnehmen kann. In Cyclisierungen zu β′‐Methylen‐C‐Atomen, welche diastereotope H‐Atome tragen, wird daher eines der möglichen epimeren Produkte bevorzugt oder ausschließlich gebildet. Die mechanistischen Konsequenzen der gefundenen Spezifitäten werden diskutiert.
    DOI:
    10.1002/hlca.19820650104
  • 作为产物:
    描述:
    2,3-Dimethyl-2-phenylselanyl-cyclopentanone 在 六甲基磷酰三胺臭氧二乙胺lithium diisopropyl amide 作用下, 以 四氢呋喃 为溶剂, 生成 4,5-dimethylcyclopent-2-en-1-one
    参考文献:
    名称:
    Based-induced rearrangements of .alpha.-phenylselenenyl ketones
    摘要:
    DOI:
    10.1021/jo00347a054
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文献信息

  • Fused-ring alkane fuel and photocatalytic preparation process thereof
    申请人:TIANJIN UNIVERSITY
    公开号:US20200181040A1
    公开(公告)日:2020-06-11
    A process for preparing a fused-ring alkane fuel, wherein the fused-ring alkane fuel has the following structure: wherein n is 1 or 2; R 1 , R 2 , R 3 , R 4 and R 5 are H or —CH 3 or —CH 2 CH 3 ; the fused-ring alkane fuel has a density of greater than 0.870 g/cm 3 , a freezing point of not higher than −50° C., and a net mass heat value of not less than 42.0 MJ/kg; the process for preparing a fused-ring alkane fuel, wherein the process includes steps of: (1) in a presence of ultraviolet light and a photocatalyst, a Diels-Alder cycloaddition reaction between a substituted or unsubstituted cyclic enone and a substituted or unsubstituted furan molecule occurs to produce a fuel precursor molecule: (2) the fuel precursor molecule obtained in the step (1) is subjected to hydrodeoxygenation to produce the fused-ring alkane fuel.
    制备融合环烷烃燃料的过程,其中融合环烷烃燃料具有以下结构: 其中n为1或2;R1、R2、R3、R4和R5为H或—CH3或—CH2CH3; 融合环烷烃燃料的密度大于0.870 g/cm3,冰点不高于−50°C,净质量热值不低于42.0 MJ/kg;制备融合环烷烃燃料的过程,其中该过程包括以下步骤:(1) 在紫外光和光催化剂的存在下,取代或未取代的环烯酮与取代或未取代的呋喃分子之间发生 Diels-Alder 环加成反应,产生燃料前体分子: (2) 在步骤(1)中获得的燃料前体分子经过脱氧反应制备融合环烷烃燃料。
  • BISARYL METALLOCENES AND USE THEREOF TO PRODUCE POLYOLEFINS
    申请人:Equistar Chemicals, LP
    公开号:US20150284418A1
    公开(公告)日:2015-10-08
    The present disclosure provides metallocene catalysts for use in polymerization processes. Such catalysts may be used to generate polymers with low branching and high molecular weights. Also, the present disclosure provides methods of bimodal polymerization resulting in a duality of average molecular weight polymers being simultaneously produced. In the system, the size of the polymers produced can be controlled by modifying the type and amount of catalyst activator.
    本公开提供了用于聚合过程中的茂金属催化剂。这些催化剂可用于生成支链少、分子量高的聚合物。此外,本公开提供了双峰聚合的方法,导致同时产生两种平均分子量聚合物。在该系统中,通过修改催化剂活化剂的类型和数量,可以控制所产生聚合物的大小。
  • SUBSTITUTED ZIRCONOCENES CATALYSTS AND METHODS OF USE IN POLYMERIZATION REACTIONS
    申请人:Equistar Chemicals, LP
    公开号:US20150284490A1
    公开(公告)日:2015-10-08
    The present disclosure relates to metallocene catalysts for use in polymerization processes. Such catalysis may be used to generate long chain polymers with low long chain branching and high molecular weights. Additionally, the size of the polymers produced can be controlled by modifying the ratio of MAO or other activator to metallocene catalyst.
    本公开涉及用于聚合过程中的茂金属催化剂。这种催化作用可用于生成具有低长链分支和高分子量的长链聚合物。此外,通过修改MAO或其他活化剂与茂金属催化剂的比例,可以控制所产生聚合物的大小。
  • Process for producing 2-alkyl-2cyclopentenones
    申请人:TAKASAGO INTERNATIONAL CORPORATION
    公开号:US20030109755A1
    公开(公告)日:2003-06-12
    Industrially advantageous processes for producing a 2-alkyl-2-cyclopentenone in high yields starting from a 2-(1-hydroxyalkyl)cyclopentanone or a 2-alkylidenecyclopentanone, which are obtainable from a cyclopentanone and a carbonyl compound. A 2-(1-hydroxyalkyl)cyclopentanone represented by the following general formula (1): 1 (wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 each independently represents hydrogen atom, an alkyl group having 1 to 10 carbon atoms which may have one or more substituents or an aromatic group which may have one or more substituents, and each of (1) R 6 or R 7 with R 3 and (2) R 6 or R 7 with R 4 or R 5 may be together combined to form a ring which may have a double bond) is subjected to dehydrative isomerization in the presence of a bromine compound and/or an iodine compound.
    从环戊酮和羰基化合物获得的2-(1-羟基烷基)环戊酮或2-烷基亚烯环戊酮,是从高产率开始生产2-烷基-2-环戊酮的工业上有利的过程。在以下一般式(1)中表示的2-(1-羟基烷基)环戊酮中(其中R1、R2、R3、R4、R5、R6和R7分别独立地表示氢原子、具有1至10个碳原子的烷基基团,可能具有一个或多个取代基或可能具有一个或多个取代基的芳香基团,且(1) R6或R7与R3和(2) R6或R7与R4或R5中的每一个可能结合在一起形成可能具有双键的环)在溴化合物和/或碘化合物的存在下进行脱水异构化。
  • NON-BRIDGED METALLOCENE COMPLEXES FOR THE POLYMERIZATION OF OLEFINS
    申请人:Equistar Chemicals, LP
    公开号:US20150284489A1
    公开(公告)日:2015-10-08
    The present disclosure relates to metallocene catalyst and the use thereof to make polyolefins. In particular, the present disclosure relates to silyl-functionalized metallocene catalyst and the use of the silyl-functionalized metallocene catalyst to polymerize olefins and yield a polyolefin. Also, the present disclosure relates to a method for producing a polyolefin comprising at least the step of contacting an olefin with a metallocene catalyst to produce a polyolefin. In particular, the present disclosure provides a method for producing a polyolefin comprising the step of contacting an olefin with a silyl-functionalized metallocene catalyst.
    本公开涉及金属茂嗪催化剂及其用于制备聚烯烃的用途。特别地,本公开涉及硅烷功能化金属茂嗪催化剂以及使用该催化剂聚合烯烃并产生聚烯烃的用途。此外,本公开还涉及一种制备聚烯烃的方法,其中至少包括与金属茂嗪催化剂接触的步骤以产生聚烯烃。特别地,本公开提供了一种制备聚烯烃的方法,其包括将烯烃与硅烷功能化金属茂嗪催化剂接触的步骤。
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