3-(4,6-di-O-benzyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranosyl)-1-propene | 201232-82-8

• 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: 3-(4,6-di-O-benzyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranosyl)-1-propene
• 英文别名: C-allyl 4,6-di-O-benzyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranoside；(2R,3S,6R)-6-allyl-3-(benzyloxy)-2-(benzyloxymethyl)-3,6-dihydro-2H-pyran；(2R,3S,6R)-3-phenylmethoxy-2-(phenylmethoxymethyl)-6-prop-2-enyl-3,6-dihydro-2H-pyran
• CAS: 201232-82-8
• 化学式: C₂₃H₂₆O₃
• 分子量: 350.458
• InChiKey: KRXZQRKVVDMXHB-XPWALMASSA-N

物化性质

• 沸点：
  471.8±45.0 °C(Predicted)
• 密度：
  1.09±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  26
• 可旋转键数：
  9
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-(4,6-di-O-benzyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranosyl)-1-propene 在 samarium diiodide 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 38.0h， 生成
  参考文献：
  名称：

  Chiral Auxiliary Based Approach Toward the Synthesis of C-Glycosylated Amino Acids

  摘要：

  [GRAPHICS]In a chiral auxiliary based method C-glycosylated amino acids can be obtained by a 1,3-dipolar cycloaddition of a chiral glycine equivalent and C-1 allyl- or vinyl-derived carbohydrate building blocks as the key step. The products are formed regio- and diastereoselectively. Reductive cleavage of the N-O bond of the isoxazolidine and of the chiral auxiliary leads to C-glycosylated amino acids. The use of (-)-menthone to (+)-menthone as the auxiliary leads to the corresponding diastereomers.

  DOI：

  10.1021/ol015743j
• 作为产物：
  描述：

  (4S,5R,E)-4,6-bis(benzyloxy)hex-2-ene-1,5-diol 在 2,2,6,6-四甲基哌啶氧化物 、 碘苯二乙酸 、 碘 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 1.75h， 生成 3-(4,6-di-O-benzyl-2,3-dideoxy-α-D-erythro-hex-2-enopyranosyl)-1-propene
  参考文献：
  名称：

  Diastereoselective synthesis of the C29–C41 fragment of karlotoxin 2

  摘要：

  A highly diastereoselective synthesis of the C29-C41 fragment of karlotoxin 2 (KmTx2) is described by employing regio-selective epoxide opening, our own developed domino isomerization followed by C-O and C-C bond formation reaction and chelation-controlled Grignard reaction as key steps. The synthesis involves installation of seven stereocenters present in the C29-C41 fragment of karlotoxin 2. (c) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2015.05.051

文献信息

• Ruthenium catalyzed synthesis of 2,3-unsaturated C-glycosides from glycals
  作者：Batthula Srinivas、Thurpu Raghavender Reddy、Sudhir Kashyap

  DOI：10.1016/j.carres.2015.01.009

  日期：2015.4

  for the synthesis of 2,3-unsaturated C-glycosides. Various nucleophiles such as allyl trimethylsilane, triethylsilane, trimethylsilyl cyanide, trimethylsilyl azide and heterocycles such as thiophene and furan reacted smoothly with glycals in the presence of catalytic amount of ruthenium trichloride under mild reaction conditions.

  使用氯化钌（III）开发了一种高效且便捷的C-糖基化方法，用于合成2,3-不饱和C-糖苷。在温和的反应条件下，在催化量的三氯化钌存在下，各种亲核试剂（如烯丙基三甲基硅烷，三乙基硅烷，三甲基甲硅烷基氰化物，三甲基甲硅烷基叠氮化物）和杂环（如噻吩和呋喃）与糖类平稳地反应。
• A mild and efficient Zn-catalyzed C-glycosylation: synthesis of C(2)–C(3) unsaturated C-linked glycopyranosides
  作者：Thurpu Raghavender Reddy、Dodla Sivanageswara Rao、Sudhir Kashyap

  DOI：10.1039/c5ra03328d

  日期：——

  A mild and efficient protocol for theC-glycosylation from glycals is described by using Zn-catalysis.

  使用锌催化剂描述了一种从糖醛中进行C-糖基化的温和高效的方法。
• Gd(OTf) 3 catalyzed preparation of 2,3-unsaturated O -, S -, N -, and C -pyranosides from glycals by Ferrier Rearrangement
  作者：Peiran Chen、Jie Su

  DOI：10.1016/j.tet.2015.11.002

  日期：2016.1

  By using Gd(OTf)3 as the catalyst, synthesis of 2,3-unsaturated-glycosides has been performed by Ferrier Rearrangement. A series of 2,3-unsaturated O-, S-, N-, and C-glycosides were obtained from 3,4,6-tri-O-acetyl-d-glucal, 3,4,6-tri-O-benzyl-d-glucal, and 3,4-di-O-acetyl-l-rhamnal under mild reaction conditions in good yields and high anomeric selectivities.

  通过使用Gd（OTf）3作为催化剂，已经通过Ferrier重排进行了2，3-不饱和糖苷的合成。一系列的2,3-不饱和ø - ，小号- ，Ñ - ，和Ç从3,4,6-三获得-glycosides ö乙酰基d -glucal，3,4,6-三- ø -苄基- d -glucal，和3,4-二- ö乙酰基升以良好的收率和高的选择性异头温和反应条件下-rhamnal。
• Direct one-pot conversion of acylated carbohydrates into their alkylated derivatives under heterogeneous reaction conditions using solid NaOH and a phase transfer catalyst
  作者：Soni Kamlesh Madhusudan、Geetanjali Agnihotri、Devendra S. Negi、Anup Kumar Misra

  DOI：10.1016/j.carres.2005.03.007

  日期：2005.5

  A convenient one-pot protocol for the direct conversion of acyl-protected carbohydrates into their alkylated counterparts has been developed by using alkyl halides in the presence of solid sodium hydroxide and a phase transfer catalyst. These economically convenient, mild, two-phase reaction conditions allow the preparation of a variety of monosaccharide intermediates for use in the synthesis of complex

  通过在固体氢氧化钠和相转移催化剂存在下使用烷基卤，已经开发了一种方便的一锅法方案，用于将酰基保护的碳水化合物直接转化为其烷基化的对应物。这些经济上方便，温和的两相反应条件允许制备用于合成复杂寡糖的各种单糖中间体。
• Bi(OTf)₃as Novel and Efficient Catalyst for the Stereoselective Synthesis of<i>C</i>-Pseudoglycals
  作者：J. S. Yadav、B. V. S. Reddy、K. Srinivasa Reddy、L. Chandraiah、V. Sunitha

  DOI：10.1055/s-2004-831187

  日期：——

  d-Glycals undergo smoothly allylic rearrangement with allyltrimethylsilane and trimethylsilyl cyanide in the presence of catalytic amount of bismuth triflate to afford the corresponding 2,3-unsaturated allyl glycosides and glycosyl cyanides in excellent yields with high α-selectivity.

  d-甘露醇在催化量的三氟甲磺酸铋存在下，与烯丙基三甲基硅烷和三甲基硅基氰化物顺利进行烯丙位重排反应，高效地生成相应的2,3-不饱和烯丙基糖苷和糖基氰化物，产率优异且具有高度的α-选择性。