1,2,5,6-di-O-isopropylidene-α-D-glucofuranose-3-O-(S-methylxanthate) | 16667-96-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1,2,5,6-di-O-isopropylidene-α-D-glucofuranose-3-O-(S-methylxanthate)
• 英文别名: 1,2:5,6-di-O-isopropylidene-3-O-(methylthio)thiocarbonyl-α-D-glucofuranose；O-((3aR,5R,6S,6aR)-5-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-yl) S-methyl carbonodithioate；O-[(3aR,5R,6S,6aR)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-6-yl] methylsulfanylmethanethioate
• CAS: 16667-96-2
• 化学式: C₁₄H₂₂O₆S₂
• 分子量: 350.457
• InChiKey: ABYFQWZWTAVGKO-KAMPLNKDSA-N

物化性质

• 沸点：
  427.2±45.0 °C(Predicted)
• 密度：
  1.33±0.1 g/cm3(Predicted)
• 溶解度：
  可溶于氯仿、二氯甲烷

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  113
• 氢给体数：
  0
• 氢受体数：
  8

安全信息

• 储存条件：
  2-8°C

反应信息

• 作为反应物：
  描述：

  1,2,5,6-di-O-isopropylidene-α-D-glucofuranose-3-O-(S-methylxanthate) 在 硫酸 、 三正丁基氢锡 作用下， 以 水 、 甲苯 为溶剂， 反应 1.0h， 生成 3-脱氧-d-葡萄糖
  参考文献：
  名称：

  Reactivity of Thermally Treated α-Dicarbonyl Compounds

  摘要：

  The degradation reaction of thermally treated 3-deoxy-D-erythro-hexos-2-ulose and methylglyoxal, both key intermediates in Mail lard chemistry, was investigated. Different analytical strategies were accomplished to cover the broad range of formed products and their different chemical behavior. These involved HPLC-DAD and accordingly LC/MS analysis of the quinoxaline derivates, GC/MS analysis of the acetylated quinoxalines, and GC-FID analysis of the decyl ester of acetic acid. As a main degradation product of 3-deoxy-D-erythro-hexos-2-ulose, 5-(hydroxymethyl)furfural could be identified. At alkaline pH values, 3-deoxy-D-erythro-hexos-2-ulose generated various acids but no colored products. In contrast, thermal treatment of methylglyoxal yielded high molecular weight, brownish products. A dimer of methylglyoxal, first precursor for aldol-based polymerization of methylglyoxal, could be clearly identified by GC/MS.

  DOI：

  10.1021/jf302959k
• 作为产物：
  描述：

  sodium (3aR,5S,6S,6aR)-5-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-olate 在 二硫化碳 、 乙醚 作用下， 生成 1,2,5,6-di-O-isopropylidene-α-D-glucofuranose-3-O-(S-methylxanthate)
  参考文献：
  名称：

  SOME XANTHATE METHYL ESTERS OF GLUCOSE

  摘要：

  以下化合物被认为是新的：1,2-单-O-异丙基亚甲基-D-葡萄糖呋喃糖-3-S-甲基黄原酸酯，熔点102°C，[公式：见文本] -27.8°；甲基-4,6-O-苯甲亚甲基-α-D-葡萄糖吡喃糖苷-2,3-二-S-甲基黄原酸酯，熔点100°C，[公式：见文本] -18.1°；以及1,2;3,5-二-O-亚甲基-α-D-葡萄糖呋喃糖-6-S-甲基黄原酸酯，熔点99°C，[公式：见文本] +27.3°在氯仿中。异丙基亚甲基和亚甲基衍生物的部分水解产生了一些葡萄糖-3-S-甲基黄原酸酯和葡萄糖-6-S-甲基黄原酸酯作为粗糖浆。6-黄原酸酯在酸性条件下的稳定性远高于3-黄原酸酯。两者的色谱行为已确定。

  DOI：

  10.1139/v56-061

文献信息

• Facile Barton−McCombie Deoxygenation of Alcohols with Tetrabutylammonium Peroxydisulfate and Formate Ion
  作者：Hee Sock Park、Hee Yoon Lee、Yong Hae Kim

  DOI：10.1021/ol050886h

  日期：2005.7.1

  [reaction: see text]. A new method for efficient radical deoxygenation of alcohols is described for preparing bulk chemicals avoiding scale-up problems. Treatment of various thiocarbonyl derivatives with (Bu(4)N)(2)S(2)O(8) and HCO(2)Na in DMF afforded the corresponding deoxygenated products in excellent yields. The deoxygenation appears to be initiated by the transfer of a single electron to thiocarbonyl

  [反应：请参见文字]。描述了一种用于醇的有效自由基脱氧的新方法，用于制备散装化学品以避免规模扩大的问题。用（Bu（4）N）（2）S（2）O（8）和HCO（2）Na在DMF中处理各种硫代羰基衍生物以优异的收率提供了相应的脱氧产物。脱氧似乎是由单个电子从CO（2）（*）（-）而不是SO4（*）（-）转移到硫代羰基衍生物而引发的。
• Radical Deoxygenation of Xanthates and Related Functional Groups with New Minimalist N-Heterocyclic Carbene Boranes
  作者：Shau-Hua Ueng、Louis Fensterbank、Emmanuel Lacôte、Max Malacria、Dennis P. Curran

  DOI：10.1021/ol101015m

  日期：2010.7.2

  Minimalist N-heterocyclic carbene boranes 1,3-dimethylimidazol-2-ylideneborane and 2,4-dimethyl-1,2,4-triazol-3-ylideneborane are readily available and have low molecular weights. They exhibit superior performance to first-generation NHC−boranes, providing improved yields in reductions of xanthates and related functional groups.

  极简主义的N-杂环卡宾硼烷1,3-二甲基咪唑-2-亚基硼烷和2,4-二甲基-1,2,4-三唑-3-亚基硼烷很容易获得，并且分子量低。它们表现出优于第一代NHC-硼烷的性能，在减少黄药和相关官能团方面提供了更高的收率。
• The invention of radical reactions. Part XXXI. Diphenylsilane: a reagent for deoxygenation of alcohols via their thiocarbonyl derivatives, deamination via isonitriles, and dehalogenation of bromo- and iodo- compounds by radical chain chemistry
  作者：Derek H.R. Barton、Doo Ok Jang、Joseph Cs. Jaszberenyi

  DOI：10.1016/s0040-4020(01)87198-2

  日期：1993.8

  Various thionocarbonates and xanthates of alcohols and bis-xanthates of vic-diols are readily deoxygenated to the corresponding hydrocarbons or olefins, while bromides and iodides are dehalogenated with diphenylphenylsilane in good yield.

  各种thionocarbonates和醇的黄原酸盐和二的-xanthates VIC -diols容易脱氧成相应的烃或烯烃，而溴化物和碘化物与以良好的收率diphenylphenylsilane脱卤。
• Process for deoxygenating secondary alcohols
  申请人：Schering Corporation

  公开号：US04078139A1

  公开（公告）日：1978-03-07

  The process for removing a secondary hydroxyl group from an organic compound having at least one secondary hydroxyl group and having any amino groups protected, comprises the reaction of a reactive ester of said secondary hydroxyl group selected from the group consisting of an O-alkylthioester and an O-alkylselenoester with at least one mole of an organotin hydride, preferably tri-n-butylstannane, in an inert, aprotic solvent at a temperature of at least about 100.degree. C and under an inert atmosphere. The process is particularly useful in removing secondary alcohols in aminoglycoside antibiotics to produce deoxy derivatives thereof having antibacterial activity. Also described are novel O-sec.-alkylthiobenzoate, O-sec.-alkyl-S-methylxanthate, N-(sec.-alkoxythiocarbonyl)-imidazole esters, and di-O-alkylthiocarbonates having at least one secondary O-alkyl group, useful intermediates of the claimed process.

  将至少具有一个次级羟基且具有任何氨基保护的有机化合物中的次级羟基团从中去除的过程，包括将所述次级羟基团的反应性酯（所选自O-烷基硫酯和O-烷基硒酯组成的群）与至少一摩尔的有机锡氢化物（优选为三正丁基锡烷）在惰性、无极性溶剂中，在至少约100摄氏度的温度下，在惰性气氛下反应。该过程特别适用于去除氨基糖苷类抗生素中的次级醇，以产生具有抗菌活性的去氧衍生物。还描述了新颖的O-sec.-烷基硫代苯甲酸酯、O-sec.-烷基-S-甲基黄原酸酯、N-(sec.-烷氧硫代羰基)-咪唑酯和至少具有一个次级O-烷基基团的双O-烷基硫代碳酸酯，这些是所述过程的有用中间体。
• Active-site engineering of nucleotidylyltransferases and general enzymatic methods for the synthesis of natural and "unnatural" UDP- and TDP-nucleotide sugars
  申请人：——

  公开号：US20030055235A1

  公开（公告）日：2003-03-20

  The present invention provides mutant nucleotidylyl-transferases, such as E p , having altered substrate specificity; methods for their production; and methods of producing nucleotide sugars, which utilize these nucleotidylyl-transferases. The present invention also provides methods of synthesizing desired nucleotide sugars using natural and/or modified Ep or other nucleotidyltransferases; and nucleotide sugars sythesized by the present methods. The present invention further provides new glycosyl phosphates, and methods for making them.

  本发明提供了一种突变型核苷酸转移酶，如E p ，具有改变的底物特异性；其生产方法；以及利用这些核苷酸转移酶生产核苷酸糖的方法。本发明还提供了使用天然和/或修饰的Ep或其他核苷酸转移酶合成所需的核苷酸糖的方法；以及通过本发明方法合成的核苷酸糖。本发明进一步提供了新的糖基磷酸酯，及其制造方法。