2,2,2-trichloroethyl N-[(2R,4aR,6S,7R,8R,8aS)-2-phenyl-8-phenylmethoxy-6-prop-2-enoxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl]sulfamate | 1185733-86-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃二恶英
• 英文名称: 2,2,2-trichloroethyl N-[(2R,4aR,6S,7R,8R,8aS)-2-phenyl-8-phenylmethoxy-6-prop-2-enoxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl]sulfamate
• CAS: 1185733-86-1
• 化学式: C₂₅H₂₈Cl₃NO₈S
• 分子量: 608.924
• InChiKey: QBERJPKRUUQTHD-QALHXSLCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  38
• 可旋转键数：
  11
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  110
• 氢给体数：
  1
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  2,2,2-trichloroethyl N-[(2R,4aR,6S,7R,8R,8aS)-2-phenyl-8-phenylmethoxy-6-prop-2-enoxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl]sulfamate 在 氢气 、 甲酸铵 、 palladium(II) hydroxide 作用下， 以 甲醇 、 水 为溶剂， 反应 16.0h， 以93%的产率得到
  参考文献：
  名称：

  O- and N-Sulfations of Carbohydrates Using Sulfuryl Imidazolium Salts

  摘要：

  A series of sulfuryl imidazolium salts (SISs) were prepared and examined as reagents for incorporating trichloroethyl-protected sulfate esters into carbohydrates. The SIS that contained a 1,2-dimethylimidazolium moiety (SIS 9) proved to be a superior sulfating compared to SISs bearing no alkyl groups or bulkier alkyl groups on the imidazolium ring. Difficult O-sulfations that required prolonged reaction times and a large excess of the SIS bearing a 1-methylimidazolium group (SIS 5) were achieved in high yield using less than half the amount of SIS 9 in less time. Certain N-sulfated compounds that were practically inaccessible using SIS 5 were obtained in excellent yield using SIS 9.

  DOI：

  10.1021/jo9014112
• 作为产物：
  描述：

  allyl 3-O-benzyl-4,6-O-benzylidene-2-deoxy-2-amino-α-D-glucopyranoside 、 2,2,2-trichloroethoxysulfuryl-1,2-dimethylimidazole triflate 在 1,2-二甲基咪唑 作用下， 以 二氯甲烷 为溶剂， 以94%的产率得到2,2,2-trichloroethyl N-[(2R,4aR,6S,7R,8R,8aS)-2-phenyl-8-phenylmethoxy-6-prop-2-enoxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl]sulfamate
  参考文献：
  名称：

  O- and N-Sulfations of Carbohydrates Using Sulfuryl Imidazolium Salts

  摘要：

  A series of sulfuryl imidazolium salts (SISs) were prepared and examined as reagents for incorporating trichloroethyl-protected sulfate esters into carbohydrates. The SIS that contained a 1,2-dimethylimidazolium moiety (SIS 9) proved to be a superior sulfating compared to SISs bearing no alkyl groups or bulkier alkyl groups on the imidazolium ring. Difficult O-sulfations that required prolonged reaction times and a large excess of the SIS bearing a 1-methylimidazolium group (SIS 5) were achieved in high yield using less than half the amount of SIS 9 in less time. Certain N-sulfated compounds that were practically inaccessible using SIS 5 were obtained in excellent yield using SIS 9.

  DOI：

  10.1021/jo9014112

文献信息

• <i>O</i>- and <i>N</i>-Sulfations of Carbohydrates Using Sulfuryl Imidazolium Salts
  作者：Laura J. Ingram、Ahmed Desoky、Ahmed M. Ali、Scott D. Taylor

  DOI：10.1021/jo9014112

  日期：2009.9.4

  A series of sulfuryl imidazolium salts (SISs) were prepared and examined as reagents for incorporating trichloroethyl-protected sulfate esters into carbohydrates. The SIS that contained a 1,2-dimethylimidazolium moiety (SIS 9) proved to be a superior sulfating compared to SISs bearing no alkyl groups or bulkier alkyl groups on the imidazolium ring. Difficult O-sulfations that required prolonged reaction times and a large excess of the SIS bearing a 1-methylimidazolium group (SIS 5) were achieved in high yield using less than half the amount of SIS 9 in less time. Certain N-sulfated compounds that were practically inaccessible using SIS 5 were obtained in excellent yield using SIS 9.