retrofractamide B | 54794-74-0

• 物质功能分类: 化学试剂 - 有机试剂 - 酰胺
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并间二氧杂环戊烯类
• 英文名称: retrofractamide B
• 英文别名: pipercide；(2E,4E,10E)-11-(1,3-benzodioxol-5-yl)-N-(2-methylpropyl)undeca-2,4,10-trienamide
• CAS: 54794-74-0
• 化学式: C₂₂H₂₉NO₃
• 分子量: 355.477
• InChiKey: RPOYGOULCHMVBB-ADDDGJNWSA-N

物化性质

• 物理描述：
  Solid
• 熔点：
  114-115°C
• 保留指数：
  2786.8

计算性质

• 辛醇/水分配系数(LogP)：
  6.1
• 重原子数：
  26
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  47.6
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 海关编码：
  2932999099

反应信息

• 作为产物：
  描述：

  6-氧代己酸甲酯 在 氢氧化钾 、 lithium aluminium tetrahydride 、 正丁基锂 、 草酰氯 、 air 、 二甲基亚砜 、 苯硫酚 、 三乙胺 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 乙醚 、 乙醇 、 正己烷 、 水 、 苯 为溶剂， 反应 9.5h， 生成 retrofractamide B
  参考文献：
  名称：

  A Practical and Efficient Synthetic Route to Dihydropipercide and Pipercide¹

  摘要：

  Dihydropipercide 1 and Pipercide 2 are examples of hydrophobic insecticidal isobutylamide derivatives isolated from Piper Nigrum L. which have received synthetic attention over the past decade. Novel structural features combining the N-isobutyldieneamide array, found in related natural products such as Pellitorine, with the 3,4-methylenedioxyphenyl moiety, found in insecticide synergists including Piperonyl Butoxide and Sesamex, render these as attractive targets for synthesis. Although a variety of synthetic routes to related natural products have appeared in the literature, practical methods for the preparation of the title compounds were lacking. Convenient and convergent 10-11-step protocols were developed which provided access to gram quantities of the targets. Methyl 6-oxohexanoate 4 was prepared from cyclohexanone enol acetate 3 via a tandem ozonolysis, methanolysis, hydrolysis process. Subsequent olefination and olefin isomerization steps followed by further elaboration provided the targets 1 and 2. Noteworthy features of this methodology include the convenient synthesis of oxoester intermediate 4 and the phenythio radical-induced olefin isomerization of intermediate 6 which afforded high yields of >99.5% E-olefin 13. These are both somewhat uncommon but potentially useful processes which may find further application in organic synthesis.

  DOI：

  10.1021/jo981039d

文献信息

• METHYL MENTHOL DERIVATIVE AND COOLING AGENT COMPOSITION CONTAINING SAME
  申请人：TAKASAGO INTERNATIONAL CORPORATION

  公开号：US20180057447A1

  公开（公告）日：2018-03-01

  The purpose of the present invention is to provide a cooling agent composition containing a novel methyl menthol derivative having no undesirable feeling of stimulation, malodor, bitterness, or the like, it being possible to use the cooling agent composition as a cooling agent or sensory stimulation agent having exceptional persistence of a sense of coolness and refreshing feeling. The present invention pertains to a cooling agent composition containing a methyl menthol derivative represented by general formula (1A) or general formula (1B).

  本发明的目的是提供一种冷却剂组合物，其中包含一种新型的甲基薄荷醇衍生物，不具有刺激感、恶臭、苦味等不良感觉，可以将该冷却剂组合物用作具有出色持久感觉的凉爽和清新感的冷却剂或感官刺激剂。本发明涉及一种含有由通式（1A）或通式（1B）表示的甲基薄荷醇衍生物的冷却剂组合物。
• Insecticidal amides. Synthesis of natural 2(),4(),10()-pipercide, its 2(), 4(), 10 ()- stereomer, and related isobutylamides
  作者：Leslie Crombie、Raynond Denman

  DOI：10.1016/s0040-4039(01)81413-1

  日期：1984.1

  Natural [ ()]pipercide and its 2(),4(),10()- stereomer are synthesised, the latter having superior insecticidal potency and knock down. 10,11-Dihydro- and 10,11-dehydropipercides are also prepared.

  合成了天然的[ （）]哌啶及其2（），4（），10（）-立体异构体，后者具有优异的杀虫效力和击倒性。还制备了10，11-二氢和10，11-脱氢哌啶。
• COOL-SENSATION IMPARTER COMPOSITION CONTAINING 2,2,6-TRIMETHYLCYCLOHEXANECARBOXYLIC ACID DERIVATIVE
  申请人：TAKASAGO INTERNATIONAL CORPORATION

  公开号：US20200297607A1

  公开（公告）日：2020-09-24

  A cooling agent composition contains a 2,2,6-trimethylcyclohexanecarboxylic acid derivative represented by the following general formula (1). The symbol * represents an asymmetric carbon atom. X represents NH, N(ZAr 2 ), O or S, Z represents a single bond or an alkylene group having 1 to 3 carbon atoms which may have a substituent, Ar 2 represents an aryl group having 6 to 20 carbon atoms which may have a substituent or an aromatic heterocyclic group having 2 to 15 carbon atoms which may have a substituent. Y each independently represents a methylene group which may have a substituent, and n represents an integer of 0 to 3. Ar 1 represents an aryl group having 6 to 20 carbon atoms which may have a substituent or an aromatic heterocyclic group having 2 to 15 carbon atoms which may have a substituent.

  一个制冷剂组合物包含一个由以下通用式（1）表示的2,2,6-三甲基环己烷羧酸衍生物。符号*代表一个不对称碳原子。X代表NH，N(ZAr2)，O或S，Z代表一个单键或一个具有1到3个碳原子的烷基基团，可以有一个取代基，Ar2代表一个具有6到20个碳原子的芳基基团，可以有一个取代基或一个具有2到15个碳原子的芳香杂环基团，可以有一个取代基。Y各自独立地表示一个可以有取代基的亚甲基基团，n表示0到3的整数。Ar1代表一个具有6到20个碳原子的芳基基团，可以有一个取代基或一个具有2到15个碳原子的芳香杂环基团，可以有一个取代基。
• Synthesis of natural polyene isobutylamides. Stereochemistry of the wittig reactions
  作者：Leslie Crombie、David Fisher

  DOI：10.1016/s0040-4039(00)94859-7

  日期：1985.1

  Unsaturated isobutylamide synthons are employed to make seven natural amides. The (Z)-selectivity of the Wittig reaction towards the newly formed olefinic bond in the seven examples is estimated by 13 Cmr.

  使用不饱和异丁酰胺合成子来制备七种天然酰胺。在7个实施例向新形成的烯键Wittig反应的（Z） -选择性由估计13了Cmr。
• Concise, efficient new synthesis of pipercide, an insecticidal unsaturated amide from Piper nigrum, and related compounds
  作者：George M. Strunz、Heather Finlay

  DOI：10.1016/s0040-4020(01)89414-x

  日期：1994.1

  Pipercide and piperolein A, unsaturated amides from Piper nigrum, were prepared in overall yields of 21% and 35% respectively, by a new, short and efficient strategy, in which the key step was the aldol-Grob-type fragmentation sequence recently reported by Sakai et al.. (but using propylene- rather than ethylene glycol). The nor-homologues of these natural products were similarly prepared. In the final

  通过新的，短而有效的策略，分别从Piper nigrum制备了总产率分别为21％和35％的Pipercide和Piperolein A（不饱和酰胺），其中的关键步骤是最近报道的aldol-Grob型片段化序列。 Sakai等人（但使用丙二醇而不是乙二醇）。这些天然产物的非同源物以类似方式制备。在最后的步骤中，可以通过Roskamp的方法（包括用Sn [N（TMS）2 ] 2和适当的胺处理）直接从酯中制备酰胺，或者通过常规方法从相应的羧酸中制备酰胺。