2-methyl but-3-yn-2-yl 4,6-di-O-acetyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranoside | 1400767-35-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: 2-methyl but-3-yn-2-yl 4,6-di-O-acetyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranoside
• 英文别名: [(2R,3S,6R)-3-acetyloxy-6-(2-methylbut-3-yn-2-yloxy)-3,6-dihydro-2H-pyran-2-yl]methyl acetate
• CAS: 1400767-35-2
• 化学式: C₁₅H₂₀O₆
• 分子量: 296.32
• InChiKey: DSUQKIUJRAKSQA-BFHYXJOUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  21
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  71.1
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2-methyl but-3-yn-2-yl 4,6-di-O-acetyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranoside 在 copper(l) iodide 、 nickel(II) chloride hexahydrate 、 四甲基乙二胺 、 氧气 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 12.0h， 以76%的产率得到2,7-dimethylocta-3,5-diyne-2,7-diyl bis(4,6-di-O-acetyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranoside)
  参考文献：
  名称：

  Stereoselective synthesis of pseudoglycosides catalyzed by TeCl4 under mild conditions

  摘要：

  Catalytic amounts of tellurium(IV) tetrachloride were used to promote the O-glycosylation of 3,4,6-tri-O-acetyl-D-glucal to give the corresponding 2,3-unsaturated-O-glycosides. With simple alcohols, the desired compounds were obtained in good yields and excellent anomeric selectivity in a short reaction time using only 2 mol % of the catalyst. The application of the method in the synthesis of a small set of glycopyranosides with rigid or flexible linkers gave the corresponding a anomers as products in good yields. Further applications of some of the synthesized compounds in allylation reaction of aldehydes gave the corresponding homoallylic alcohols in good yields. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2012.09.073
• 作为产物：
  描述：

  2,3,4,6-tetra-O-acetyl-D-glucopyranosyl bromide 在 copper(ll) sulfate pentahydrate 、 sodium acetate 、 四氯化碲 、 溶剂黄146 、 锌 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 1.58h， 生成 2-methyl but-3-yn-2-yl 4,6-di-O-acetyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranoside
  参考文献：
  名称：

  Stereoselective synthesis of pseudoglycosides catalyzed by TeCl4 under mild conditions

  摘要：

  Catalytic amounts of tellurium(IV) tetrachloride were used to promote the O-glycosylation of 3,4,6-tri-O-acetyl-D-glucal to give the corresponding 2,3-unsaturated-O-glycosides. With simple alcohols, the desired compounds were obtained in good yields and excellent anomeric selectivity in a short reaction time using only 2 mol % of the catalyst. The application of the method in the synthesis of a small set of glycopyranosides with rigid or flexible linkers gave the corresponding a anomers as products in good yields. Further applications of some of the synthesized compounds in allylation reaction of aldehydes gave the corresponding homoallylic alcohols in good yields. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2012.09.073

文献信息

• Robust perfluorophenylboronic acid-catalyzed stereoselective synthesis of 2,3-unsaturated <i>O</i>-, <i>C</i>-, <i>N</i>- and <i>S</i>-linked glycosides
  作者：Madhu Babu Tatina、Xia Mengxin、Rao Peilin、Zaher M A Judeh

  DOI：10.3762/bjoc.15.125

  日期：——

  A convenient protocol was developed for the synthesis of 2,3-unsaturated C-, O-, N- and S-linked glycosides (enosides) using 20 mol % perflurophenylboronic acid catalyst via Ferrier rearrangement. Using this protocol, D-glucals and L-rhamnals reacted with various C-, O-, N- and S-nucleophiles to give a wide range of glycosides in up to 98% yields with mainly α-anomeric selectivity. The perflurophenylboronic

  开发了一种方便的方案，用于使用20摩尔％的全氟苯基硼酸催化剂通过Ferrier重排合成2，3-不饱和C-，O-，N-和S-连接的糖苷（烯醇）。使用该方案，D-葡糖醛酸和L-鼠李糖醛与各种C-，O-，N-和S-亲核试剂反应，以高达98％的收率（主要是α-异头异构体选择性）提供各种糖苷。全氟苯基硼酸在非常温和的反应条件下成功催化了多种底物（葡糖醛和亲核试剂）。
• Synthesis of 2,3-Unsaturated Alkynyl O-Glucosides from Tri-O-acetyl-d-glucal by Using Montmorillonite K-10/Iron(III) Chloride Hexahydrate with Subsequent Copper(I)-Catalyzed 1,3-Dipolar Cycloaddition
  作者：Ronaldo de Oliveira、Valentina Melo、Willyenne Dantas、Celso Camara

  DOI：10.1055/s-0034-1378829

  日期：——

  within short times and with high α-stereoselectivities. Subsequently, the glucosides were coupled with 2-azido-1,4-naphthoquinone to produce a new series of 1,2,3-1H-triazolyl O-glucoside derivatives through a click reaction. Two strategies were considered for the synthesis of 2,3-unsaturated O-glucosyl-1,2,3-triazoles. The first, involving reaction between tri-O-acetyl-d-glucal and triazole alcohols

  摘要 考虑了两种合成2，3-不饱和O-葡萄糖基-1,2,3-三唑的策略。三-之间的第一，涉及反应ö乙酰基d -glucal和三唑醇没有给出立体选择性。第二种策略是通过Ferrier重排从糖和炔醇中提供2,3-不饱和的O-糖苷。该方法在二氯甲烷中使用掺有六水合氯化铁（III）的蒙脱石K-10，可在短时间内以高至优异的产率和高α-立体选择性提供新的糖苷。随后，将糖苷与2-叠氮基-1,4-萘醌偶联以生成新的1,2,3-1 H-三唑基O系列-葡萄糖苷衍生物通过点击反应。 考虑了两种合成2，3-不饱和O-葡萄糖基-1,2,3-三唑的策略。三-之间的第一，涉及反应ö乙酰基d -glucal和三唑醇没有给出立体选择性。第二种策略是通过Ferrier重排从糖和炔醇中提供2,3-不饱和的O-糖苷。该方法在二氯甲烷中使用掺有六水合氯化铁（III）的蒙脱石K-10，可在短时间内以高至优异的产率和高α-立体选择性