4,5-Dibenzyl-3,6-dihydro-[1,2]dithiine | 821770-10-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二噻英
• 英文名称: 4,5-Dibenzyl-3,6-dihydro-[1,2]dithiine
• 英文别名: 4,5-Dibenzyl-3,6-dihydro-1,2-dithiine；4,5-dibenzyl-3,6-dihydrodithiine
• CAS: 821770-10-9
• 化学式: C₁₈H₁₈S₂
• 分子量: 298.473
• InChiKey: WYBYXCQIJQNUCI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  50.6
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2,3-二苄基-1,3-丁二烯 在 1,2,3,4,5,6,7,8-八硫杂环辛烷 、 二苯基二硒醚 、 三苯基膦 作用下， 以 氯苯 、 甲醇 为溶剂， 反应 3.0h， 以67%的产率得到4,5-Dibenzyl-3,6-dihydro-[1,2]dithiine
  参考文献：
  名称：

  Diselenide-assisted sulfuration of dienes

  摘要：

  Various diselenides assist in the sulfuration of dienes giving cyclic di- and tetrasulfides as main products. The reaction requires a 2-fold excess of diselenides to be efficient. Catalytic amounts of diselenides result in lower yields. This is likely due to secondary reactions (polymerization, aromatization) occurring during extended reaction times under catalytic conditions. It was verified that the sulfur-transferring properties of diselenatetrasulfides are virtually identical to those of diselenides combined with sulfur. Contrary to previous claims, not only the cyclic diselenatetrasulfide but also linear diselenatetrasulfides (RSeSnSeR) transfer sulfur to dienes. A mechanism is proposed and its implications to the nature of diatomic sulfur are discussed. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2004.10.085

文献信息

• Diselenide-assisted sulfuration of dienes
  作者：Andrzej Z. Rys、Yihua Hou、Imad A. Abu-Yousef、David N. Harpp

  DOI：10.1016/j.tetlet.2004.10.085

  日期：2004.12

  Various diselenides assist in the sulfuration of dienes giving cyclic di- and tetrasulfides as main products. The reaction requires a 2-fold excess of diselenides to be efficient. Catalytic amounts of diselenides result in lower yields. This is likely due to secondary reactions (polymerization, aromatization) occurring during extended reaction times under catalytic conditions. It was verified that the sulfur-transferring properties of diselenatetrasulfides are virtually identical to those of diselenides combined with sulfur. Contrary to previous claims, not only the cyclic diselenatetrasulfide but also linear diselenatetrasulfides (RSeSnSeR) transfer sulfur to dienes. A mechanism is proposed and its implications to the nature of diatomic sulfur are discussed. (C) 2004 Elsevier Ltd. All rights reserved.