3-O-lauroyl sucrose | 146270-43-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 糖脂
• 英文名称: 3-O-lauroyl sucrose
• 英文别名: 3-O-lauroylsucrose；3-O-sucrose monolaurate；lauroyl(-3)Glc(a1-2b)Fruf；[(2R,3R,4S,5R,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl] dodecanoate
• CAS: 146270-43-1
• 化学式: C₂₄H₄₄O₁₂
• 分子量: 524.606
• InChiKey: KZUVCGNHOFIICC-HBFYIQRXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  36
• 可旋转键数：
  17
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.96
• 拓扑面积：
  196
• 氢给体数：
  7
• 氢受体数：
  12

反应信息

• 作为反应物：
  描述：

  3-O-lauroyl sucrose 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 以60%的产率得到6-O-sucrose monolaurate
  参考文献：
  名称：

  6-O-酰基蔗糖和混合的6,6'-di-O-酰基蔗糖的新合成。

  摘要：

  从N，N-二甲基甲酰胺中的未保护蔗糖和适当的3-酰基噻唑烷-2-硫酮6或3-酰基-5-甲基-1,3,4-噻二唑-2（ 3H）-硫酮7.用氢化钠或三乙胺选择性离子化游离糖，然后用6进行酰化，生成2-O-酰基蔗糖，然后使用1,8-二氮杂双环[5.4.0]对其进行分子内异构化。十一碳烯（DBU）或三乙胺的水溶液可产生6-O-酰基蔗糖。如果在DBU存在下将蔗糖用6或7酰化，则可以直接获得后者。而且，通过使用Mitsunobu反应很容易地从6'-单酰基化物获得混合的6,6'-二-O-酰基蔗糖，而没有伴随形成3'，4'-环氧化物。

  DOI：

  10.1016/0008-6215(94)00341-c
• 作为产物：
  描述：

  月桂酰氯 、 蔗糖 在 二正丁基氧化锡 、 三乙胺 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 99.0h， 以70%的产率得到6-O-sucrose monolaurate
  参考文献：
  名称：

  Regioselective Synthesis of Sucrose Monoesters as Surfactants

  摘要：

  A highly regioselective conversion of sucrose into 6-O-acyl derivatives is reported. First sucrose was transformed into the dibutyltin acetal, thus enhancing the nucleophilicity at the C-6 oxygen and restricting the subsequent acylation reaction. The surface activity properties of the sucrose monoesters obtained were determined and compared with those of commercially available ionic and non-ionic surfactants.

  DOI：

  10.1080/07328309708006506

文献信息

• Transesterification of Sucrose in Organic Medium: Study of Acyl Group Migrations
  作者：Valérie Molinier、Krzysztof Wisniewski、Alain Bouchu、Juliette Fitremann、Yves Queneau

  DOI：10.1081/car-120026466

  日期：2003.12.31

  of sucrose fatty acid esters to undergo intramolecular migrations in organic medium and the regioselectivity of some transesterifications of sucrose were investigated by HPLC, in situ NMR spectroscopy and preparative methods. Extensive acylation on secondary positions of the glucose moiety followed by migrations is general for base catalysed transesterification. The stability of 3‐ and 6‐O‐acyl derivatives

  通过HPLC，原位NMR光谱和制备方法研究了蔗糖脂肪酸酯的葡萄糖部分上的酰基在有机介质中发生分子内迁移的趋势以及一些蔗糖的酯交换反应的区域选择性。对于碱基催化的酯交换反应，通常在葡萄糖部分的次要位置上进行广泛的酰化，然后进行迁移。在一系列条件下研究了3-和6- O-酰基衍生物的稳定性，这两个异构体在热力学上比其他异构体更受青睐。结果表明，在有机碱性介质中，水的存在会催化OH-3处的酯向OH-6的迁移，而OH-6处的酯在酸性或碱性条件下显得更稳定。
• New highly regioselective reactions of unprotected sucrose. Synthesis of 2-O-acylsucroses and 2-O-(N-alkylcarbamoyl)sucroses
  作者：Caroline Chauvin、Krystyna Baczko、Daniel Plusquellec

  DOI：10.1021/jo00060a053

  日期：1993.4

  New methodologies which lead selectively to chosen regioisomeric mono-O-acylsucroses are described. The results indicate that a selective ionization of the free sugar makes the secondary 2-OH group of the glucose moiety more nucleophilic than the primary hydroxyls. New 2-O-acylsucroses 2 and 2-O-(N-alkylcarbamoyl)sucroses 3 were thus obtained in high yields.
• Appearance and distribution of regioisomers in metallo- and serine-protease-catalysed acylation of sucrose in N,N-dimethylformamide
  作者：Aleksander Lie、Anne S. Meyer、Lars Haastrup Pedersen

  DOI：10.1016/j.molcatb.2014.04.017

  日期：2014.8

  The appearance and distribution of monoester regioisomers were investigated in the virtually irreversible acylation of sucrose with the enol ester, vinyl laurate, as acyl donor catalysed by serine proteases and a metalloprotease in the hydrophilic, aprotic solvent N,N-dimethylformamide. Sucrose laurate was obtained in yields from 12 to 53% after 48 h under different catalytic conditions. The serine protease ALP-901, derived from a Streptomyces sp., produced the highest yield at this reaction time, while reaction with the zinc-protease thermolysin achieved the overall highest yield (63%) after 6 h, with only monoesters synthesised. The total conversion of sucrose after 48 h ranged from 19 to 96%. The highest degree of conversion was observed in the reaction with thermolysin, while the reactions without protein and with ALP-901 resulted in 82% and 66% sucrose conversion, respectively. 2-O-Lauroyl sucrose was the most abundant monoester regioisomer synthesised and the highest concentration observed was 23.7 mM after 24h in the thermolysin-catalysed reaction. The highest concentration of 2-O-lauroyl sucrose detected in the reaction catalysed by ALP-901 was 19.0 mM, while it was 17.0 mM the reaction without protein, both after 48 h. The detected appearance of the sucrose laurate regioisomers largely corresponded to the apparent rates of formation, and 2-O-lauroyl sucrose was among the first regioisomers to appear in all reactions. The observed sucrose laurate regioisomeric distribution after 48 h (2:3:4:6:1':3') was 72:5:2:1:7:14 in the reaction catalysed by ALP-901, and 74:5:2:1:7:13 in the reaction without protein. In the reaction catalysed by thermolysin the distribution was 71:5:2:-:9:13 after 6 h and 86:8:-:-:4:3 after 48 h of reaction. The esterification of sucrose with vinyl laurate without protein in the reaction mixture appeared to be catalysed in the presence of aluminosilicate molecular sieves. Non-catalytic protein in the reaction medium seemed to lower the catalytic activity of the molecular sieves. (C) 2014 Elsevier B.V. All rights reserved.
• Improved synthesis of sucrose fatty acid monoesters
  作者：M. Angeles Cruces、Francisco J. Plou、Manuel Ferrer、Manuel Bernabé、Antonio Ballesteros

  DOI：10.1007/s11746-001-0300-5

  日期：2001.5

  AbstractThe base‐catalyzed synthesis of four sucrose fatty acid esters (caprylate, laurate, myristate, and palmitate) was performed in dimethylsulfoxide by transesterification of sucrose with the corresponding vinyl esters using disodium hydrogen phosphate as catalyst. In using a molar ratio sucrose/vinyl ester 4∶1 and mild reaction conditions (40°C and atmospheric pressure), yields were higher than 85%. The isolated sucroesters had a higher percentage of monoesters (≥90%) and a lower content of diesters in comparison with commercial derivatives. In all cases, 2‐O‐acylsucrose was the major product (≥60%) in the monoester fraction.