摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

methyl 2,3,4-tri-O-benzyl-β-D-galacto-hexodialdo-1,5-pyranoside | 117305-40-5

中文名称
——
中文别名
——
英文名称
methyl 2,3,4-tri-O-benzyl-β-D-galacto-hexodialdo-1,5-pyranoside
英文别名
(2S,3R,4S,5R,6R)-6-methoxy-3,4,5-tris(phenylmethoxy)oxane-2-carbaldehyde
methyl 2,3,4-tri-O-benzyl-β-D-galacto-hexodialdo-1,5-pyranoside化学式
CAS
117305-40-5
化学式
C28H30O6
mdl
——
分子量
462.543
InChiKey
IGCJSRSARAVPOK-QBROEMLDSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 沸点:
    585.2±50.0 °C(Predicted)
  • 密度:
    1.20±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    4.31
  • 重原子数:
    34.0
  • 可旋转键数:
    11.0
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.32
  • 拓扑面积:
    63.22
  • 氢给体数:
    0.0
  • 氢受体数:
    6.0

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • Diastereoselectivity in the synthesis of <scp>D</scp>-glycero-<scp>D</scp>-aldoheptoses by 2-trimethylsilylthiazole homologation from hexodialdo-1,5-pyranose derivatives
    作者:Naveen K. Khare、Ramesh K. Sood、Gerald O. Aspinall
    DOI:10.1139/v94-036
    日期:1994.1.1

    An exploration of the synthesis of D-glycero-D-altro-heptose, a constitutent of O antigen chains in lipopolysaccharides from Campylobacter jejuni serotypes O:23 and O:36 led to a study of the 2-trimethylsilylthiazole homologation procedure for heptose synthesis. In contrast to the diastereoselective formation of a 1,2:3,4-di-O-isopropylidene-D-glycero-α-D-galacto-heptopyranose derivative from 1,2:3,4-di-O-isopropylidene-α-D-galacto-hexodialdo-1,5-pyranose, methyl 2,3,4-tri-O-benzyl-D-hexodialdo-1,5-pyranosides with the gluco and manno configurations showed no preference for the formation of compounds with the D-glycero configuration. Attempts to achieve high diastereoselectivity in the conversion of L-glycero into the D-glycero isomers by oxidation at C-6 followed by reduction with L-selectride were unsuccessful with the thiazole adducts, but the desired products were formed in similar reactions of methyl 2,3,4-tri-O-benzyl-7-O-tert-butyldimethylsilyl-D-heptopyranosides. The approach to homologation in the altro series was thwarted by epimerization at C-5 in the attempted formation of methyl 2,3,4-tri-O-benzyl-α-D-altro-hexodialdo-1,5-pyranoside. The successful synthesis of methyl D-glycero-α-D-altro-heptopyranoside from methyl α-D-glucopyranoside was achieved by homologation followed by configurational alteration from the D-gluco to the D-altro series.

    对Campylobacter jejuni血清型O:23和O:36脂多糖O抗原链成分D-glycero-D-altro-heptose合成方法的探索,引导了对2-三甲基噻唑同系化方法在庚糖合成中应用的研究。与从1,2:3,4-二-O-异亚丙基-α-D-半乳糖-己醛糖-1,5-喃糖形成1,2:3,4-二-O-异亚丙基-D-甘油-α-D-半乳糖-庚喃糖衍生物的差向异构选择性形成相比,具有葡萄糖甘露糖构型的甲基2,3,4-三-O-苄基-D-己醛糖-1,5-喃糖苷在形成D-甘油构型化合物方面没有表现出偏好。尝试通过C-6氧化后用L-选择性还原剂将L-甘油转化为D-甘油异构体,在噻唑加合物中未能实现高差向异构选择性,但在甲基2,3,4-三-O-苄基-7-O-叔丁基二甲基基-D-庚喃糖苷的类似反应中形成了所需产物。在altro系列中进行同系化的方法因在尝试形成甲基2,3,4-三-O-苄基-α-D-altro-己醛糖-1,5-喃糖苷时C-5的差向异构化而受阻。从甲基α-D-葡萄糖苷成功合成了甲基D-甘油-α-D-altro-庚喃糖苷,通过同系化后从D-葡萄糖系列到D-altro系列构型改变实现。
  • Synthesis of Vinyl- and Alkynylcyclopentanetetraols by SmI<sub>2</sub>/Pd(0)-Promoted Carbohydrate Ring-Contraction
    作者:José M. Aurrecoechea、Beatriz López、Mónica Arrate
    DOI:10.1021/jo0005619
    日期:2000.10.1
    predominant trans relationship is found between vinyl (or alkynyl) and hydroxyl groups at the two newly created stereogenic centers, with good to excellent levels of stereoselectivity being observed in the formation of homopropargyl cyclopentanol products. Under appropriate conditions, preparatively useful yields are realized of stereoisomers not directly available using alternative methodology.
    由对映体纯的形式,由适当的碳水化合物前体以对映体纯的形式,通过SmI2和催化的Pd(O)促进的直接一步式环缩过程制备各种乙烯基或炔基取代的多羟基化环戊烷环丁烷。该反应被认为是通过中间的开环的烯丙基或烯丙基complex络合物进行的,该络合物通过分子内羰基加成而发生闭环。在两个新创建的立体异构中心发现乙烯基(或炔基)和羟基之间存在主要的反式关系,在形成高炔丙基环戊醇产物中观察到良好的立体选择性。在适当的条件下,使用替代方法无法直接获得立体异构体的制备有用的产量。
  • Synthesis of C-Oligosaccharides That Mimic Their Natural O-Analogous Immunodeterminants in Binding to Monoclonal Immunoglobulins
    作者:Yan-Chao Xin、Yong-Min Zhang、Jean-Maurice Mallet、Cornelis P. J. Glaudemans、Pierre Sinaÿ
    DOI:10.1002/(sici)1099-0690(199902)1999:2<471::aid-ejoc471>3.0.co;2-2
    日期:1999.2
    We have stereoselectively synthesized the analogues of the methyl β-glycosides of (16)-β-D-galacto-oligosaccharides (up to tetrasaccharide), in which the interglycosidic oxygen atoms are replaced by a methylene group.
    我们立体选择性地合成了 (16)-β-D-低聚半乳糖(最多四糖)的甲基 β-糖苷类似物,其中糖苷间氧原子被亚甲基取代。
  • Hydroxy-Directed, SmI2-Induced Conversion of Carbohydrates into Carbocycles
    作者:Toshiyuki Kan、Shinji Nara、Takashi Ozawa、Haruhisa Shirahama、Fuyuhiko Matsuda
    DOI:10.1002/(sici)1521-3773(20000117)39:2<355::aid-anie355>3.0.co;2-u
    日期:2000.1.17
    Polyoxygenated six-membered carbocycles were derived from carbohydrates with complete stereocontrol through hydroxy-directed coupling cyclization induced by SmI(2). For example, the cis-1,3-cyclohexanediol 3 is obtained from the D-glucopyranoside derivative 1 in excellent yield. The coupling cyclization is initiated by single-electron transfer from SmI(2) to the formyl group of the delta-hydroxy aldehyde
    多加氧六元碳环化合物是从碳水化合物中衍生出来的,具有完全的立体控制作用,通过SmI(2)诱导的羟基定向偶联环化作用。例如,从D-吡喃葡萄糖苷衍生物1以优异的产率获得顺式1,3-环己二醇3。偶联环化是通过从SmI(2)到平衡过程中生成的δ-羟基醛2的甲酰基单电子转移而引发的。
  • A new convenient approach to higher sugar allylic alcohols
    作者:Słwomir Jarosz
    DOI:10.1016/s0040-4039(00)86685-x
    日期:1988.1
    D-galactose or D-ribose derivatives. The selection of the starting material depends, therefore, only on its availability. The interchangeability of the synthetic routes is especially important when rare sugars have to be used in the synthesis.
    D-半乳糖D-核糖生物开始,通过两种独立的途径获得了烯丙醇4(一种用于制备脱氮氮磺胺(2)的手性合成子)。因此,原料的选择仅取决于其可用性。当必须在合成中使用稀有糖时,合成路线的互换性尤为重要。
查看更多