4-Isopropyl-5-methyl-2,3-dihydrothiophene | 133966-42-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氢噻吩类
• 英文名称: 4-Isopropyl-5-methyl-2,3-dihydrothiophene
• 英文别名: 5-Methyl-4-propan-2-yl-2,3-dihydrothiophene
• CAS: 133966-42-4
• 化学式: C₈H₁₄S
• 分子量: 142.265
• InChiKey: RBSMZJGNWOYNFF-UHFFFAOYSA-N

物化性质

• 沸点：
  201.4±10.0 °C(Predicted)
• 密度：
  0.951±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  25.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  4-Isopropyl-5-methyl-2,3-dihydrothiophene 在 双氧水 作用下， 以 丙酮 为溶剂， 反应 50.0h， 生成 (9CI)-2,3-二氢-5-甲基-4-(1-甲基乙基)-噻吩,1-氧化物
  参考文献：
  名称：

  Dye-sensitized photooxygenation of 2,3-dihydrothiophenes: formation of stable 1,2-dioxetanes from 4,5-dialkyl-substituted derivatives

  摘要：

  Singlet oxygen reacts with 4,5-dimethyl- (1a), 4-ethyl-5-methyl- (1b), and 4-isopropyl-5-methyl-2,3-dihydrothiophene (1c) to give 1,2-dioxetanes 2a-c in high yields (> 90%). 2a-c represent the first examples of sulfur-substituted dioxetanes that could be isolated. Less than 5% of allylic hydroperoxides 3a, 4a, and 3b, identified by their H-1 NMR spectra, and less than 5% of S-oxides 5a-c were formed in competing ene reactions and sulfoxide-producing steps, respectively. Due to its decreased rigidity, dioxetane 2a is less stable than its oxygen counterpart. Increased flexibility of dioxetanes derived from dihydrothiophenes and dihydrothiopyrans, as compared to those derived from dihydrofurans and dihydropyrans, causes dioxetanes 9 and 16, obtained from 4-carbomethoxy-5-methyl-2,3-dihydrothiophene (8) and 5,6-dimethyl-3,4-dihydro-2H-thiopyran (14), to cleave into dicarbonyl compounds readily at low temperatures. Sulfur-substituted allylic hydroperoxides are also less stable than their oxygen counterparts. Formation of the expected endocyclic allylic hydroperoxides 3a, 3b, and 10 is inferred from the appearance of their H2O2 elimination products, thiophenes 7a, 7b and 13, respectively.

  DOI：

  10.1021/jo00012a041
• 作为产物：
  描述：

  2-Methylidene-3-(propan-2-yl)thiolane 以10%的产率得到
  参考文献：
  名称：

  STEIN, J. -L.;CROZET, M. P., C. R. ACAD. SCI., 1985, 300, N 2, 59-62

  摘要：

  DOI：

文献信息

• 5, 6-RING ANNULATED INDOLE DERIVATIVES AND USE THEREOF
  申请人：Bennett Frank

  公开号：US20100322901A1

  公开（公告）日：2010-12-23

  The present invention relates to 5,6-ring annulated indole derivatives of the formula (I), compositions comprising at least one 5,6-ring annulated indole derivatives, and methods of using the 5,6-ring annulated indole derivatives for treating or preventing a viral infection or a virus-related disorder in a patient.

  本发明涉及公式（I）的5,6-环接合吲哚衍生物，包含至少一种5,6-环接合吲哚衍生物的组合物，以及利用这些5,6-环接合吲哚衍生物治疗或预防患者病毒感染或与病毒相关的疾病的方法。
• RING-FUSED 2-PYRIDONE DERIVATIVES AND HERBICIDES
  申请人：Takabe Fumiaki

  公开号：US20110287937A1

  公开（公告）日：2011-11-24

  Provided are 2-pyridone derivatives which have excellent herbicidal activity and exhibit high safety to useful crops and so on; salts thereof; and herbicides containing same. In more detail, 2-pyridone derivatives represented by general formula [I] or agrochemically acceptable salts thereof, and herbicides containing these compounds are provided. In general formula [I], X 1 is an oxygen atom or a sulfur atom; X 2 , X 3 , and X 4 are to each CH or N(O) m ; m is an integer of 0 or 1; R 1 is a hydrogen atom, a C 1-12 alkyl group, or the like; R 2 is a halogen atom, a cyano group, or the like; n is an integer of 0 to 4; R 3 is a hydroxyl group, a halogen atom, or the like; A 1 is C(R 11 R 12 ); A 2 is C(R 13 R 14 ) or C═O; A 3 is C(R 15 R 16 ); and R 11 , R 12 , R 13 , R 14 , R 15 , and R 16 are each independently a hydrogen atom or a C 1-6 alkyl group.

  提供了具有优异除草活性并对有用作物等表现出高安全性的2-吡啶酮衍生物；其盐；以及含有这些化合物的除草剂。更详细地说，提供了通式[I]所表示的2-吡啶酮衍生物或其农药可接受的盐，以及含有这些化合物的除草剂。在通式[I]中，X1是氧原子或硫原子；X2、X3和X4分别为CH或N(O)m；m是0或1的整数；R1是氢原子，C1-12烷基或类似物；R2是卤素原子，氰基或类似物；n是0到4的整数；R3是羟基，卤素原子或类似物；A1是C(R11R12)；A2是C(R13R14)或C═O；A3是C(R15R16)；R11、R12、R13、R14、R15和R16分别独立地是氢原子或C1-6烷基基团。
• Compounds and methods for inhibiting mitotic progression by inhibition of aurora kinase
  申请人：MILLENNIUM PHARMACEUTICALS, INC.

  公开号：EP2261226A1

  公开（公告）日：2010-12-15

  This invention relates to compounds and methods for the treatment of cancer. In particular, the invention provides compounds that inhibit Aurora kinase, pharmaceutical compositions comprising the compounds, and methods of using the compounds for the treatment of cancer.

  本发明涉及治疗癌症的化合物和方法。特别是，本发明提供了抑制极光激酶的化合物、包含该化合物的药物组合物以及使用该化合物治疗癌症的方法。
• US8268803B2
  申请人：——

  公开号：US8268803B2

  公开（公告）日：2012-09-18
• US8334236B2
  申请人：——

  公开号：US8334236B2

  公开（公告）日：2012-12-18