phenyl 1-thio-β-D-gulopyranoside | 1163254-75-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: phenyl 1-thio-β-D-gulopyranoside
• 英文别名: Phenyl-1-thio-beta-d-glucopyranoside；(2R,3R,4R,5R,6S)-2-(hydroxymethyl)-6-phenylsulfanyloxane-3,4,5-triol
• CAS: 1163254-75-8
• 化学式: C₁₂H₁₆O₅S
• 分子量: 272.322
• InChiKey: OVLYAISOYPJBLU-ROHXPCBUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  115
• 氢给体数：
  4
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  phenyl 1-thio-β-D-gulopyranoside 生成 phenyl 2-O-benzyl-3,4-O-isopropylidene-1-thio-β-D-galactopyranoside
  参考文献：
  名称：

  FERNANDEZ-MAYORALAS, ALFONSO;MARRA, ALBERTO;TRUMTEL, MICHEL;VEYRIERES, AL+, TETRAHEDRON LETT., 30,(1989) N9, C. 2537-2540

  摘要：

  DOI：

文献信息

• Stereodirecting Effect of the Pyranosyl C-5 Substituent in Glycosylation Reactions
  作者：Jasper Dinkelaar、Ana Rae de Jong、Robert van Meer、Mark Somers、Gerrit Lodder、Herman S. Overkleeft、Jeroen D. C. Codée、Gijsbert A. van der Marel

  DOI：10.1021/jo900662v

  日期：2009.7.17

  The stereodirecting effect of the glycosyl C-5 substituent has been investigated in a series of D-pyranosyl thioglycoside donors and related to their preferred positions in the intermediate H-3(4) and H-4(3) half-chair oxacarbenium ions. Computational studies showed that an axially positioned C-5 carboxylate ester can stabilize the (3)H4 half-chair oxacarbenium ion conformer by donating electron densit from its carbonyl function into the electron-poor oxacarbenium ion functionality. A similar stabilization can be achieved by a C-5 benzyloxyrnethyl group, but,the magnitude of this stabilization is significantly smaller than for the C-5 carboxylate ester. As a result, the preference of the C-5 benzyloxymethyl to occupy an axial position in the half-chair oxacarbenium ions is much reduced compared to the C-5 carboxylate ester. To minimize steric interactions, a C-5 methyl group prefers to adopt an equatorial position and therefore favors the H-4(3) half-chair oxacarbenium ion. When all pyranosyl substituents occupy their favored position in one of the two intermediate half-chair oxacarbenium ions, highly stereoselective glycosylations can be achieved as revealed by the excellent beta-selectivity of mannuronate esters and alpha-selectivity of 6-deoxygulosides.
• FERNANDEZ-MAYORALAS, ALFONSO;MARRA, ALBERTO;TRUMTEL, MICHEL;VEYRIERES, AL+, TETRAHEDRON LETT., 30,(1989) N9, C. 2537-2540
  作者：FERNANDEZ-MAYORALAS, ALFONSO、MARRA, ALBERTO、TRUMTEL, MICHEL、VEYRIERES, AL+

  DOI：——

  日期：——
• FERNANDEZ-MAYORALAS, ALFONSO;MARRA, ALBERTO;TRUMTEL, MICHEL;VEYRIERES, AL+, CARBOHYDR. RES., 188,(1989) C. 81-95
  作者：FERNANDEZ-MAYORALAS, ALFONSO、MARRA, ALBERTO、TRUMTEL, MICHEL、VEYRIERES, AL+

  DOI：——

  日期：——
• PEDRETTI, VALERIE;VEYRIERES, ALAIN;SINAY, PIERRE, TETRAHEDRON, 46,(1990) N, C. 77-88
  作者：PEDRETTI, VALERIE、VEYRIERES, ALAIN、SINAY, PIERRE

  DOI：——

  日期：——
• CATELANI, GIORGIO;COLONNA, FABRIZIA;MARRA, ALBERTO, CARBOHYDR. RES., 182,(1988) N 2, C. 297-300
  作者：CATELANI, GIORGIO、COLONNA, FABRIZIA、MARRA, ALBERTO

  DOI：——

  日期：——