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5,5-dimethyl-3-methylenetetrahydro-2H-pyran-2-one | 66797-98-6

中文名称
——
中文别名
——
英文名称
5,5-dimethyl-3-methylenetetrahydro-2H-pyran-2-one
英文别名
5,5-dimethyl-3-methylenetetrahydropyran-2-one;5,5-dimethyl-3-methylene-tetrahydro-pyran-2-one;4,4-Dimethyl-α-methylen-δ-valerolacton;5,5-Dimethyl-3-methylideneoxan-2-one
5,5-dimethyl-3-methylenetetrahydro-2H-pyran-2-one化学式
CAS
66797-98-6
化学式
C8H12O2
mdl
——
分子量
140.182
InChiKey
MQRUOUYCRPKVNN-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:
    80 °C(Press: 0.1 Torr)
  • 密度:
    0.99±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.9
  • 重原子数:
    10
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.62
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为产物:
    参考文献:
    名称:
    由乙氧基乙炔,环氧化物/氧杂环丁烷和羰基化合物一次合成α-亚烷基和α-亚苄基内酯的单烧瓶
    摘要:
    在BF 3 ·OEt 2存在下用环氧化物或氧杂环丁烷进行低温处理(乙氧基乙炔基)锂,然后添加醛或酮并升温至室温,得到结构上不同的五元和六元α-亚烷基和α-亚苄基内酯(5)的产率高至优异。这个一锅法,其中形成三个新的碳-碳键和一个环,可得到取代的α,β-不饱和内酯,主要为Z-构型。该反应可能是通过羟基-炔醇醚中间体的炔烃-羰基复分解,酸促进的烯烃E-到Z-异构化和内酯化而发生的。
    DOI:
    10.1016/j.tetlet.2015.12.041
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文献信息

  • Self-catalytic Michael reaction of enolizable carbonyl compounds. A facile route to α-methylene-δ-valerolactones
    作者:Henryk Krawczyk、Marcin Śliwiński
    DOI:10.1016/j.tet.2003.09.039
    日期:2003.11
    2-phosphono-5-oxoalkanoates 3 were prepared by the Michael reaction of enolizable carbonyl compounds with the acrylate 1. The corresponding 2-phosphono-5-oxoalkanoic acids 4 were converted into α-phosphono-δ-valerolactones 6. The products were shown to be useful substrates for the synthesis of α-methylene-δ-valerolactones 7 by the Horner–Wadsworth–Emmons reaction.
    各种二环己基-2-膦-5- oxoalkanoates 3是由可烯醇化羰基的化合物与丙烯酸酯的迈克尔加成反应来制备1。相应的2-膦酰基-5-氧代链烷酸4被转化为α-膦酰基-δ-戊内酯6。该产品被证明是通过Horner-Wadsworth-Emmons反应合成α-亚甲基-δ-戊内酯7的有用底物。
  • BALDWIN S. W.; CRIMMINS M. T.; CHEEK V. I., SYNTHESIS, 1978, NO 3, 210-211
    作者:BALDWIN S. W.、 CRIMMINS M. T.、 CHEEK V. I.
    DOI:——
    日期:——
  • POLYMER AND CHEMICALLY AMPLIFIED RESIST COMPOSITION COMPRISING THE SAME
    申请人:FUJI Yusuke
    公开号:US20090264565A1
    公开(公告)日:2009-10-22
    The present invention provides a polymer comprising a structural unit represented by the formula (Ia) or (Ib): wherein R 1 represents a hydrogen atom etc., R 2 represents a linear, branched chain or cyclic C1-C8 alkyl group, R 3 represents a methyl group, n represents an integer of 0 to 14, Z 1 represents a single bond etc., k represents an integer of 1 to 4, R 4 and R 5 each independently represents a hydrogen atom etc., and m represents an integer of 1 to 3, a structural unit represented by the formula (II): wherein R 6 and R 7 each independently represents a hydrogen atom etc., R 8 represents a methyl group, R 9 represents a hydrogen atom etc., Z 2 represents a single bond etc., k′ represents an integer of 1 to 4, Z′ represents a group capable to eliminate by an action of an acid, and a structural unit represented by the formula (III): wherein R 10 represents a carboxyl group etc., l′ represents an integer of 0 to 3, Z 3 represents a single bond etc., and k″ represents an integer of 1 to 4.
  • US7981985B2
    申请人:——
    公开号:US7981985B2
    公开(公告)日:2011-07-19
  • US8048612B2
    申请人:——
    公开号:US8048612B2
    公开(公告)日:2011-11-01
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