(5S)-6,8-dioxabicyclo[3.2.1]oct-2-en-4-one

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: (5S)-6,8-dioxabicyclo[3.2.1]oct-2-en-4-one
• 化学式: C₆H₆O₃
• 分子量: 126.11
• InChiKey: HITOXZPZGPXYHY-RZKHNPSRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.2
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

文献信息

• [EN] PRODUCTION OF LEVOGLUCOSENONE<br/>[FR] PRODUCTION DE LÉVOGLUCOSÉNONE
  申请人：DU PONT

  公开号：WO2016039996A1

  公开（公告）日：2016-03-17

  Disclosed herein are processes for producing levoglucosenone. In one embodiment, the process comprises the steps: a) contacting in a continuous manner a carbohydrate source, a solvent, and an acid in a continuous liquid phase reactor under reaction conditions sufficient to form a reaction mixture comprising levoglucosenone, wherein the reaction conditions include a liquid residence time in the reactor between about 0.1 minutes and about 20 minutes; b) withdrawing a portion of the reaction mixture from the reactor to obtain a product stream comprising levoglucosenone; and c) optionally, isolating levoglucosenone from the product stream.

  本文披露了生产左旋葡萄糖酮的过程。在一种实施例中，该过程包括以下步骤：a) 在连续液相反应器中以连续方式接触碳水化合物源、溶剂和酸，在足以形成包含左旋葡萄糖酮的反应混合物的反应条件下进行反应，其中反应条件包括在反应器中的液体停留时间约为0.1分钟至约20分钟之间；b) 从反应器中提取部分反应混合物，以获得包含左旋葡萄糖酮的产品流；以及c) 可选地，从产品流中分离左旋葡萄糖酮。
• [EN] PROCESS FOR PRODUCING LEVOGLUCOSENONE USING ZEOLITE CATALYSTS<br/>[FR] PROCÉDÉ DE PRODUCTION DE LÉVOGLUCOSÉNONE À L'AIDE DE CATALYSEURS DE ZÉOLITHE
  申请人：DU PONT

  公开号：WO2016048685A1

  公开（公告）日：2016-03-31

  Disclosed herein are processes for producing levoglucosenone. In one embodiment, the process comprises contacting a feedstock comprising cellulose, C?6#191 sugars, starch, or mixtures thereof with a solvent in the presence of a heterogeneous catalyst comprising a H-zeolite at a temperature between about 150 °C and about 250 °C and for a reaction time sufficient to form a product mixture comprising levoglucosenone.
• [EN] PROCESS FOR PRODUCING LEVOGLUCOSENONE<br/>[FR] PROCÉDÉ DE PRODUCTION DE LÉVOGLUCOSÉNONE
  申请人：DU PONT

  公开号：WO2016100028A1

  公开（公告）日：2016-06-23

  Disclosed herein are processes for producing levoglucosenone. In one embodiment, a carbohydrate feedstock is contacted with a first solvent and a homogeneous acid at a at a first temperature between about 20 °C and about 35 °C and for a first reaction time; the solvent is then removed to obtain an acid-impregnated feedstock, which may optionally be mechanically processed; and the acid-impregnated feedstock is then contacted with a second solvent at a second temperature between about 150 °C and about 250 °C for a second reaction time sufficient to form a product mixture comprising levoglucosenone.