6-(bromomethyl)-2,2-dimethyl-2H-chromene | 1242080-40-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 6-(bromomethyl)-2,2-dimethyl-2H-chromene
• 英文别名: 6-(Bromomethyl)-2,2-dimethylchromene
• CAS: 1242080-40-5
• 化学式: C₁₂H₁₃BrO
• 分子量: 253.139
• InChiKey: MRTKCKJGZCRDEA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 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：

  6-(bromomethyl)-2,2-dimethyl-2H-chromene 在 tetrakis(acetonitrile)palladium(II) tetrafluoroborate 、 碘苯二乙酸 、 水 、 对苯醌 作用下， 以 四氢呋喃 、 乙醚 、 二甲基亚砜 为溶剂， 反应 50.0h， 生成 (E)-4-(2,2-dimethyl-2H-chromen-6-yl)but-3-en-2-one
  参考文献：
  名称：

  末端烯烃转化为直链 α,β-不饱和酮：Pd(II)/高价碘共催化瓦克氧化-脱氢

  摘要：

  使用钯 (II) 和高价碘助催化，开发了一种温和的（35 °C，无布朗斯台德酸）串联瓦克氧化-末端烯烃脱氢反应。该反应直接从易于获得的末端烯烃中得到直链芳基和烷基 α,β-不饱和酮，收率良好（每步平均 75%），具有优异的官能团耐受性以及化学和立体选择性。人们发现高价碘助催化剂对于脱氢至关重要，但作为化学计量氧化剂并不有效。

  DOI：

  10.1021/ja402651q
• 作为产物：
  描述：

  6-hydroxymethyl-2,2-dimethyl-2H-chromene 在 四溴化碳 、 三苯基膦 作用下， 以 二氯甲烷 为溶剂， 反应 0.5h， 以44%的产率得到6-(bromomethyl)-2,2-dimethyl-2H-chromene
  参考文献：
  名称：

  New Class of Algicidal Compounds and Fungicidal Activities Derived from a Chromene Amide of Amyris texana

  摘要：

  A chromene amide, N-[2-(2,2-dimethyl-2H-1-benzopyran-6-yl)ethyl]-N,3-dimethylbutanamide, was isolated from the EtOAc extract of the leaves of Amyris texana and found to have moderate antifungal activity against Colletotrichum spp. and selective algicidal activity against Planktothrix perornata, a cyanobacterium (blue-green alga) that causes musty off-flavor in farm-raised channel catfish (Ictalurus punctatus). To improve the selective algicidal activity and provide water solubility, a series of chromene analogues were synthesized and evaluated for algicidal activity using a 96-well microplate rapid bioassay. In addition, the chromene analogues were evaluated for antifungal and phytotoxic activities. Hydrochloride salts of a chromene amine analogue showed improved water solubility and selectivity toward P. perornata with activity comparable to that of the naturally occurring chromene amide.

  DOI：

  10.1021/jf101626g

文献信息

• Terminal Olefins to Linear α,β-Unsaturated Ketones: Pd(II)/Hypervalent Iodine Co-catalyzed Wacker Oxidation–Dehydrogenation
  作者：Marinus A. Bigi、M. Christina White

  DOI：10.1021/ja402651q

  日期：2013.5.29

  Development of a mild (35 °C, no Brønsted acids) tandem Wacker oxidation-dehydrogenation of terminal olefins was accomplished using palladium(II) and hypervalent iodine co-catalysis. The reaction affords linear aryl and alkyl α,β-unsaturated ketones directly from readily available terminal olefins in good yields (average 75% per step) with excellent functional group tolerance and chemo- and stereoselectivities

  使用钯 (II) 和高价碘助催化，开发了一种温和的（35 °C，无布朗斯台德酸）串联瓦克氧化-末端烯烃脱氢反应。该反应直接从易于获得的末端烯烃中得到直链芳基和烷基 α,β-不饱和酮，收率良好（每步平均 75%），具有优异的官能团耐受性以及化学和立体选择性。人们发现高价碘助催化剂对于脱氢至关重要，但作为化学计量氧化剂并不有效。
• New Class of Algicidal Compounds and Fungicidal Activities Derived from a Chromene Amide of Amyris texana
  作者：Kumudini M. Meepagala、Kevin K. Schrader、Charles L. Burandt、David E. Wedge、Stephen O. Duke

  DOI：10.1021/jf101626g

  日期：2010.9.8

  A chromene amide, N-[2-(2,2-dimethyl-2H-1-benzopyran-6-yl)ethyl]-N,3-dimethylbutanamide, was isolated from the EtOAc extract of the leaves of Amyris texana and found to have moderate antifungal activity against Colletotrichum spp. and selective algicidal activity against Planktothrix perornata, a cyanobacterium (blue-green alga) that causes musty off-flavor in farm-raised channel catfish (Ictalurus punctatus). To improve the selective algicidal activity and provide water solubility, a series of chromene analogues were synthesized and evaluated for algicidal activity using a 96-well microplate rapid bioassay. In addition, the chromene analogues were evaluated for antifungal and phytotoxic activities. Hydrochloride salts of a chromene amine analogue showed improved water solubility and selectivity toward P. perornata with activity comparable to that of the naturally occurring chromene amide.