2,3-O-Isopropylidene-5-O-(p-tolylsulfonyl)-L-lyxono-1,4-lactone | 152139-46-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,3-O-Isopropylidene-5-O-(p-tolylsulfonyl)-L-lyxono-1,4-lactone
• 英文别名: [(3aR,6S,6aR)-2,2-dimethyl-4-oxo-6,6a-dihydro-3aH-furo[3,4-d][1,3]dioxol-6-yl]methyl 4-methylbenzenesulfonate
• CAS: 152139-46-3
• 化学式: C₁₅H₁₈O₇S
• 分子量: 342.37
• InChiKey: LPINTYGCWKERKL-YNEHKIRRSA-N

物化性质

• 沸点：
  513.3±50.0 °C(predicted)
• 密度：
  1.312±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  96.5
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  2,3-O-Isopropylidene-5-O-(p-tolylsulfonyl)-L-lyxono-1,4-lactone 在 ammonium acetate 、 二异丁基氢化铝 、 溶剂黄146 作用下， 以 甲醇 、 二氯甲烷 、 甲苯 为溶剂， 反应 73.5h， 生成 2-N-butyl-2,6-dideoxy-2,6-imino-3,4-O-isopropylidene-D-altrononitrile
  参考文献：
  名称：

  一锅串联 Strecker 反应和亚胺环化：三羟基哌啶 α-亚胺腈的合成

  摘要：

  从受保护的 5-O-甲苯磺酸戊糖中一步即可获得未支化和 α- 和 β- 甲基支化的三羟基哌啶 α-亚氨基腈。该反应包括一锅串联 Strecker 反应和亚胺环化反应。这些三羟基哌啶α-亚氨基腈是三羟基哌啶酸的前体。没有观察到吡咯烷产物的形成。

  DOI：

  10.1002/ejoc.201301705
• 作为产物：
  描述：

  2,3-Isopropylidene-D-gulono-γ-lactone 在 吡啶 、 盐酸 、 sodium periodate 、 sodium cyanoborohydride 作用下， 以 甲醇 、 氯仿 为溶剂， 反应 10.33h， 生成 2,3-O-Isopropylidene-5-O-(p-tolylsulfonyl)-L-lyxono-1,4-lactone
  参考文献：
  名称：

  First synthesis of aldopentono-1,4-thiolactones

  摘要：

  A convenient synthesis of enantiomerically pure aldopentono-1,4-thiolactones is described. Thus, 4-thio-D-ribono-1,4-lactone (12) has been prepared from D-gluono-1,4-lactone (1), via its 2,3-O-isopropylidene derivative 3. The 5,6-glycol system of 3 was oxidized with NaIO4. Chemoselective reduction of the resulting aldehyde function with NaBH3CN led to 2,3-O-isopropylidene-L-lyxono-1,4-lactone (7). Tosylation of 7 and subsequent treatment of the tosylate 8 with sodium methoxide afforded methyl 4,5-epoxy-2,3-O-isopropylidene-L-lyxonate (9) as a key intermediate. Treatment of 9 with thiourea gave the 4,5-thiirane derivative having the D-ribo configuration (10). Regioselective opening of the thiirane ring and simultaneous thiolactonization took place by heating 10 with KOAc-HOAc-DMF. The resulting 5-O-acetyl-2,3-0-isopropylidene-4-thio-D-ribono-1,4-lactone (11) was readily converted, by acid removal (2 % HCI) of the protecting groups, into the crystalline thiolactone 12. A similar approach was employed for the synthesis of 4-thio-L-lyxono-1,4-lactone (19), starting from D-ribono-1,4-lactone (13).

  DOI：

  10.1021/jo00079a034

文献信息

• First synthesis of aldopentono-1,4-thiolactones
  作者：Oscar Varela、Patricia A. Zunszain

  DOI：10.1021/jo00079a034

  日期：1993.12

  A convenient synthesis of enantiomerically pure aldopentono-1,4-thiolactones is described. Thus, 4-thio-D-ribono-1,4-lactone (12) has been prepared from D-gluono-1,4-lactone (1), via its 2,3-O-isopropylidene derivative 3. The 5,6-glycol system of 3 was oxidized with NaIO4. Chemoselective reduction of the resulting aldehyde function with NaBH3CN led to 2,3-O-isopropylidene-L-lyxono-1,4-lactone (7). Tosylation of 7 and subsequent treatment of the tosylate 8 with sodium methoxide afforded methyl 4,5-epoxy-2,3-O-isopropylidene-L-lyxonate (9) as a key intermediate. Treatment of 9 with thiourea gave the 4,5-thiirane derivative having the D-ribo configuration (10). Regioselective opening of the thiirane ring and simultaneous thiolactonization took place by heating 10 with KOAc-HOAc-DMF. The resulting 5-O-acetyl-2,3-0-isopropylidene-4-thio-D-ribono-1,4-lactone (11) was readily converted, by acid removal (2 % HCI) of the protecting groups, into the crystalline thiolactone 12. A similar approach was employed for the synthesis of 4-thio-L-lyxono-1,4-lactone (19), starting from D-ribono-1,4-lactone (13).
• One-Pot Tandem Strecker Reaction and Iminocyclisations: Syntheses of Trihydroxypiperidine α-Iminonitriles
  作者：Benjamin J. Ayers、George W. J. Fleet

  DOI：10.1002/ejoc.201301705

  日期：2014.4

  Unbranched, and α- and β-methyl-branched, trihydroxypiperidine α-iminonitriles have been obtained in a single step from protected 5-O-tosylate pentoses. This reaction comprises a one-pot tandem Strecker reaction and iminocyclisation. These trihydroxypiperidine α-iminonitriles are precursors to trihydroxypipecolic acids. No formation of pyrrolidine products was observed.

  从受保护的 5-O-甲苯磺酸戊糖中一步即可获得未支化和 α- 和 β- 甲基支化的三羟基哌啶 α-亚氨基腈。该反应包括一锅串联 Strecker 反应和亚胺环化反应。这些三羟基哌啶α-亚氨基腈是三羟基哌啶酸的前体。没有观察到吡咯烷产物的形成。