1-(methylsulfanyl)-N-(1-methylethylidene)-2-methoxybuta-1,3-dien-1-amine | 918135-79-2

• 分子结构分类: 有机化合物 - 有机硫化合物 - 亚氨硫酯类
• 英文名称: 1-(methylsulfanyl)-N-(1-methylethylidene)-2-methoxybuta-1,3-dien-1-amine
• 英文别名: 2-methoxy-N-(1-methylethylidene)-1-(methylsulfanyl)-1,3-butadien-1-amine；2-methoxy-N-(1-methylethylidene)-1-methylsulfanylbuta-1,3-dien-1-amine；N-(2-methoxy-1-methylsulfanylbuta-1,3-dienyl)propan-2-imine
• CAS: 918135-79-2
• 化学式: C₉H₁₅NOS
• 分子量: 185.29
• InChiKey: DFOSXDJVROWKLS-UHFFFAOYSA-N

物化性质

• 熔点：
  34 °C(Solvent: Ethanol)
• 沸点：
  80 °C(Press: 0.5 mmHg)
• 密度：
  0.93±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  46.9
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1-(methylsulfanyl)-N-(1-methylethylidene)-2-methoxybuta-1,3-dien-1-amine 在 potassium tert-butylate 作用下， 以 四氢呋喃 、 二甲基亚砜 为溶剂， 反应 0.5h， 以38%的产率得到6-methoxy-2-methyl-3H-azepine
  参考文献：
  名称：

  Structural reorganization of (allyl-, benzyl-, and propargylsulfanyl)-substituted 2-aza-1,3,5-trienes in t-BuOK/THF/DMSO: access to rare functionalized 2-thiazolines

  摘要：

  Treatment of (allyl-, benzyl-, and propargylsulfanyl)-substituted 2-aza-1,3,5-trienes, which are readily accessible from lithiated methoxyallene, isopropyl isothiocyanate, and allyl, benzyl, or propargyl bromide, respectively, with t-BuOK in THF/DMSO resulted in the unexpected formation of 2-thiazoline derivatives along with seven-membered azaheterocycles [in the case of (allyl- and benzylsulfanyl)-substituted 2-aza-1,3,5-trienes]. An unprecedented structural reorganization of the azatrienes into 2-thiazolines presumably occurs via alpha-deprotonation of the substituents at the sulfur atom followed by intramolecular [1,5]-cyclization. Deprotonation of the ketimine fragment of the same molecule followed by [1,71-electrocyclization resulted in azepine ring formation. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2014.03.015
• 作为产物：
  描述：

  methyl N-isopropyl-2-methoxy-2,3-butadienimidothioate 反应 0.05h， 生成 1-(methylsulfanyl)-N-(1-methylethylidene)-2-methoxybuta-1,3-dien-1-amine
  参考文献：
  名称：

  Reactions of heterocumulenes with organometallic reagents: XVII. One-pot synthesis of alkoxy and (alkylsulfanyl)-substituted pyrroles and 2,3-dihydropyridines from aliphatic isothiocyanates and lithiated alkoxyallenes

  摘要：

  A fundamentally new approach was developed to designing pyrrole and dihydropyridine rings from available allenes and isothiocyanates involving a single preparative stage. Applying the reaction of lithiated alkoxyallenes with aliphatic isothiocyanates we have synthesized previously unknown 1-alkyl(cycloalkyl) pyrroles and 2,3-dihydropyridines with rare alkoxy- and alkylsulfanyl substituents. It was proved that the five- and six-membered azaheterocycles formed as a result of competing reactions of direct intramolecular cyclization of S-alkylated adducts of lithiated alkoxyallenes with isothiocyanates (1-aza-1,3,4-trienes) into pyrroles and of [1,5]-sigmatropic rearrangement into conjugated 2-aza-1,3,5-trienes with subsequent closure into dihydropyridine ring (through 6 pi-electrocyclization).

  DOI：

  10.1134/s1070428011050034

文献信息

• Simultaneous synthesis of 4,5-dihydro-3H-azepines and 3H-azepines, bearing alkoxy and alkylsulfanyl substituents, through metallation of 2-aza-1,3,5-trienes by t-BuOK
  作者：Nina A. Nedolya、Ol’ga A. Tarasova、Ol’ga G. Volostnykh、Alexander I. Albanov、Boris A. Trofimov

  DOI：10.1016/j.jorganchem.2011.07.016

  日期：2011.10

  and 3H-azepines have simultaneously been obtained from conjugated 2-aza-1,3,5-trienes by treatment with t-BuOK under mild reaction conditions (THF/DMSO, ∼−30 °C, 30 min). One-pot synthesis of 1-aza-1,3,4-trienes from α-lithiated alkoxyallenes, isopropyl isothiocyanate and alkyl iodides, followed by the thermally induced sigmatropic [1,5]-H shift, easily leads to starting 2-aza-1,3,5-trienes. The reaction

  通过在温和的条件下用t -BuOK处理，同时从共轭2-氮杂-1,3,5-三烯中同时获得了一系列新的烷氧基和烷基硫烷基取代的4,5-二氢-3 H-氮杂环庚烷和3 H-氮杂环庚烷。反应条件（THF / DMSO，〜-30°C，30分钟）。由α-锂化的烷氧基丙二烯，异硫氰酸异丙酯和烷基碘化物一锅合成1-氮杂-1,3,4-三烯，然后热诱导σ[1,5] -H转变，很容易导致2-氮杂-1,3,5-三烯。该反应通过氮杂三烯基阴离子的产生和[1,7]-电环化而进行，并且代表了一种新颖的简单方法来同时处理氮杂环庚二烯和氮杂环庚烯。