O-α-D-xylopyranosyl-(1->4)-D-xylopyranose | 552-71-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: O-α-D-xylopyranosyl-(1->4)-D-xylopyranose
• 英文别名: α-1,4-xylodisaccharide；(2R,3R,4S,5R)-2-[(3R,4R,5R)-4,5,6-trihydroxyoxan-3-yl]oxyoxane-3,4,5-triol
• CAS: 552-71-6；78932-92-0；80244-85-5；80244-86-6；83113-52-4；102046-32-2；102046-33-3
• 化学式: C₁₀H₁₈O₉
• 分子量: 282.248
• InChiKey: LGQKSQQRKHFMLI-TXOJJSHKSA-N

物化性质

• 熔点：
  185-186 °C(Solv: methanol (67-56-1))
• 沸点：
  556.2±50.0 °C(Predicted)
• 密度：
  1.70±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -4
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  149
• 氢给体数：
  6
• 氢受体数：
  9

反应信息

• 作为产物：
  描述：

  (-)-benzyl 2,3-anhydro-β-D-ribopyranoside 在 palladium on activated charcoal 2,4,6-三甲基吡啶 、 氢气 、 silver perchlorate 、 sodium hydride 作用下， 以 乙二醇甲醚 为溶剂， 反应 5.0h， 生成 O-α-D-xylopyranosyl-(1->4)-D-xylopyranose
  参考文献：
  名称：

  Synthesis of the oligosaccharides α-d-Glcp(1→4)-d-Xylp, α-d-Xylp-(1→4)-d-Glcp, α-d-Glcp-(1→4)-α-d-Glcp-(1→4)-d-Xylp, α-d-Glcp-(1→4)-α-d-Xylp-(1→4)-d-Glcp, and α-d-Xylp-(1→4)-α-d-Glcp-(1→4)-d-Glcp

  摘要：

  Syntheses are described of the disaccharides, alpha-D-Glcp-( -->4) -D-Xylp, alpha-D-Xylp-(1 --> 4)-D-Glcp, and alpha-D-Xylp-(1 --> 4)-D-Xylp, and trisaccharides, alpha-D-Glcp-(1 --> 4)-alpha-D-Glcp-(1 --> 4)-D-Xylp, alpha-D-Glcp-( --> 4)-alpha-D-Xylp-(1 --> 4)-D-Gep, and alpha-D-Xylp-(1 --> 4)-alpha-D-Glcp-(1 --> 4)-D-Glcp as analogues of glucoamylase and soybean beta-amylases substrates.

  DOI：

  10.1016/0008-6215(91)80154-f

文献信息

• An approach to the systematic synthesis of (1→4)-β-d-xylo-oligosaccharides
  作者：Ján Hirsch、Pavol Kováč、Eva Petráková

  DOI：10.1016/s0008-6215(00)81074-5

  日期：1982.8

  Abstract The first approach to a general synthesis of (1→4)-β- d -xylo-oligosaccharides is described. Thus, 1,2,3-tri- O -acetyl-4- O -benzyl-β- d -xylopyranose was treated with hydrogen bromide in dichloromethane to give the corresponding glycosyl bromide 3 , which was condensed with 1,2,3-tri- O -acetyl-β- d -xylopyranose. The β-linked disaccharide formed, bearing at O-4 of its non-reducing end the

  摘要描述了一般合成（1→4）-β-d-木糖寡糖的第一种方法。因此，用二氯甲烷中的溴化氢处理1,2,3-三-O-乙酰基-4-O-苄基-β-d-吡喃木糖，得到相应的糖基溴化物3，将其与1,2,3-缩合。三-O-乙酰基-β-d-吡喃木糖。形成的，在其非还原端的O-4处带有可选择性除去的苄基的β-连接的二糖进行氢解，得到无HO-4'的二糖亲核体21，再次用3处理。该反应序列再重复两次，将分离出的产物17-20脱保护，得到一系列同源的低级木糖寡糖（从二糖到五糖），因此证明了木糖寡糖分子逐步构建的可行性。缩合反应混合物中存在的相应的α-连接的低聚糖5-8也被分离出来并进行了表征。给出了六个同源序列的不同取代的（1→4）-d-木糖寡糖的13 CN.mr光谱特征。
• Zong, Ning; Kamiyama, Yoshi; Yasui, Tsuneo, Agricultural and Biological Chemistry, 1989, vol. 53, # 8, p. 2129 - 2140
  作者：Zong, Ning、Kamiyama, Yoshi、Yasui, Tsuneo

  DOI：——

  日期：——
• Iizuka, Yoshie; Shinoyama, Hirofumi; Kamiyama, Yoshi, Bioscience, Biotechnology and Biochemistry, 1992, vol. 56, # 2.3.4., p. 331 - 332
  作者：Iizuka, Yoshie、Shinoyama, Hirofumi、Kamiyama, Yoshi、Yasui, Tsuneo

  DOI：——

  日期：——
• TAKEO, KENICHI;TERAMOTO, YASUHIRO;SHIMONO, YUMI;NITTA, YASUNORI, CARBOHYDR. RES., 209,(1991) C. 167-179
  作者：TAKEO, KENICHI、TERAMOTO, YASUHIRO、SHIMONO, YUMI、NITTA, YASUNORI

  DOI：——

  日期：——
• Synthesis of the oligosaccharides α-d-Glcp(1→4)-d-Xylp, α-d-Xylp-(1→4)-d-Glcp, α-d-Glcp-(1→4)-α-d-Glcp-(1→4)-d-Xylp, α-d-Glcp-(1→4)-α-d-Xylp-(1→4)-d-Glcp, and α-d-Xylp-(1→4)-α-d-Glcp-(1→4)-d-Glcp
  作者：Kenichi Takeo、Yasuhiro Teramoto、Yumi Shimono、Yasunori Nitta

  DOI：10.1016/0008-6215(91)80154-f

  日期：1991.1

  Syntheses are described of the disaccharides, alpha-D-Glcp-( -->4) -D-Xylp, alpha-D-Xylp-(1 --> 4)-D-Glcp, and alpha-D-Xylp-(1 --> 4)-D-Xylp, and trisaccharides, alpha-D-Glcp-(1 --> 4)-alpha-D-Glcp-(1 --> 4)-D-Xylp, alpha-D-Glcp-( --> 4)-alpha-D-Xylp-(1 --> 4)-D-Gep, and alpha-D-Xylp-(1 --> 4)-alpha-D-Glcp-(1 --> 4)-D-Glcp as analogues of glucoamylase and soybean beta-amylases substrates.