(3,4-dihydro-2H-pyran-2-yl)methyl 3,4-dihydro-2H-pyran-2-carboxylate | 3540-36-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: (3,4-dihydro-2H-pyran-2-yl)methyl 3,4-dihydro-2H-pyran-2-carboxylate
• 英文别名: 3,4-dihydro-2H-pyran-2-carboxylic acid-(3,4-dihydro-2H-pyran-2-ylmethyl ester)；3,4-Dihydro-2H-pyran-2-carbonsaeure-(3,4-dihydro-2H-pyran-2-ylmethylester)；(3,4-dihydro-2H-pyran-2-ylmethyl) 3,4-dihydro-2H-pyran-2-carboxylate；3,4-dihydro-2H-pyran-2-ylmethyl 3,4-dihydro-2H-pyran-2-carboxylate
• CAS: 3540-36-1
• 化学式: C₁₂H₁₆O₄
• 分子量: 224.257
• InChiKey: OPRHFGGPAJOHSF-UHFFFAOYSA-N

物化性质

• 沸点：
  115-125 °C(Press: 0.5 Torr)
• 密度：
  1.148±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.58
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (3,4-dihydro-2H-pyran-2-yl)methyl 3,4-dihydro-2H-pyran-2-carboxylate 在 ammonium hydroxide 、 sodium hydroxide 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 18.0h， 生成 3,4-二氢吡喃甲胺
  参考文献：
  名称：

  烯醇醚的抗体催化水解。2. 抗体-过渡态复合物的结构和对映选择性的起源

  摘要：

  烷基烯醇醚水解为其相应的羰基化合物，是通过酸催化对 β-碳进行定速质子化，形成氧碳离子中间体 (Kresge, AJ; Chang, YJ Chem. SOC. B 1967, 53) . 抗体 14D9 (anti-1) 以非常高的质子化对映选择性催化烯醇醚 4 和 5 的水解（Reymond, J.-L.; Janda, KD; Lerner, RAJ Am. Chem. SOC. 1992, 114, 2257） . 催化包括抗体侧链作为一般酸的参与，以及烯醇醚 c Jahangiri, GK 的锥体化；斯托德，C.；勒纳，RAJ Am。化学 SOC。1993、115、3909）。本研究解决了该催化剂对映选择性起源的问题。首先，对映选择性和底物耐受性，这在抗体 14D9 中最为显着，显示为抗 1 或抗 2 抗体的复发特征。研究了四种抗体，所有抗体都对映选择性地在烯醇醚的背面传递质子以产生

  DOI：

  10.1021/ja00104a008
• 作为产物：
  描述：

  3,4-二氢-2H-吡喃-2-甲醛 在 四氯化碳 作用下， 生成 (3,4-dihydro-2H-pyran-2-yl)methyl 3,4-dihydro-2H-pyran-2-carboxylate
  参考文献：
  名称：

  Preparation of esters of alpha, betaolefinic carboxylic acids

  摘要：

  公开号：

  US02562849A1

文献信息

• Determination of the gauche effect of 3-acetamido- and 3-acetoxy-piperidine and -tetrahydropyran by 1H-n.m.r. spectroscopy
  作者：Bruno Bernet、Umberto Piantini、Andrea Vasella

  DOI：10.1016/0008-6215(90)84017-o

  日期：1990.9

  H-n.m.r. spectroscopy. The limiting values for the relevant vicinal coupling constants of the newly prepared trans - ( 22 ) and cis -5-acetoxy-2-(1-hydroxy-1-methylethyl)tetrahydropyran ( 24 ) were obtained at room temperature. The attractive gauche effect of AcNH-3 and AcO-3 in piperidines, piperidinium trifluoroacetates, and tetrahydropyrans was investigated by 1 H-n.m.r. spectroscopy both at low temperature

  摘要采用低温1 Hn.mr光谱法测定了乙酰氨基和乙酰氧基的A值。在室温下获得了新制备的反式-（22）和顺式-5-乙酰氧基-2-（1-羟基-1-甲基乙基）四氢吡喃（24）的相关邻位偶合常数的极限值。在低温（积分）和室温（带宽和耦合常数）下，通过1 Hn.mr光谱研究了AcNH-3和AcO-3在哌啶，哌啶三氟乙酸盐和四氢吡喃中的吸引效应。在低温下获得的结果更可靠。N-（3-哌啶基）乙酰胺（11），N-（1-甲基-3-哌啶基）乙酰胺（12）的构象平衡位置
• Multi-functional alpha-alkoxyalkyl acrylate and methacrylate ester compositions and reworkable polymers formed therefrom
  申请人：Woods G. John

  公开号：US20050101689A1

  公开（公告）日：2005-05-12

  Adhesive compositions are disclosed which include acrylates, their polymers, and free radical initiators. The compositions include a multi-functional alpha-alkoxyalkyl(meth)acrylate compound and a free radical initiator. The multi-functional alpha-alkoxyalkyl(meth)acrylate compound is the reaction product of: (a) a (meth)acrylic acid or a (meth)acrylate ester having a free carboxylic acid group; and (b) a compound including two or more 1-alkenyl ether groups and free of acetal and ketal groups, or a compound free of acetal and ketal groups and including one or more 1-alkenyl ether groups and a (meth)acrylate group. The compositions are easier and less expensive to prepare than conventional acrylate compositions and degrade when contacted with an acid medium or when heated. The compositions are useful in a wide range of applications and are compatible with conventional adhesive additives.

  本发明揭示了包括丙烯酸酯、它们的聚合物和自由基引发剂的粘合剂组合物。该组合物包括多功能α-烷氧基烷基（甲基）丙烯酸酯化合物和自由基引发剂。多功能α-烷氧基烷基（甲基）丙烯酸酯化合物是以下反应产物：（a）自由羧酸基的（甲基）丙烯酸或（甲基）丙烯酸酯；和（b）包括两个或更多1-烯基醚基团且不含缩醛和缩酮基团的化合物，或不含缩醛和缩酮基团且包括一个或多个1-烯基醚基团和（甲基）丙烯酸酯基团的化合物。该组合物比传统的丙烯酸酯组合物更易于制备，成本更低，并在接触酸性介质或加热时降解。该组合物在广泛的应用中非常有用，并且与传统的粘合剂添加剂兼容。
• RESIN COMPOSITION FOR OPTICAL MODELING
  申请人：ASAHI DENKA KOGYO KABUSHIKI KAISHA

  公开号：EP0360869A1

  公开（公告）日：1990-04-04

  A resin composition for optical modeling, which comprises an actinic radiation-curable and cationically-polymerizable organic substance and an actinic radiation-sensitive and cationically polymerizable substance, and which is cured without the influence of oxygen present in the air.

  一种用于光学建模的树脂组合物，它由一种光辐射固化和可阳离子聚合的有机物质和一种光辐射敏感和可阳离子聚合的物质组成，并在不受空气中氧气影响的情况下固化。
• Liquid, radiation-curable composition, especially for stereolithography
  申请人：Vantico AG

  公开号：EP1327911A1

  公开（公告）日：2003-07-16

  The present invention provides a liquid resin composition comprising: (a) at least one cationically curable compound comprising an alicyclic polyepoxide having at least two epoxy groups per molecule with a monomer purity of over 94%; (b) at least one photoinitiator for the cationically cured componds; (c) a free-radically-curable component and (d) a free radical photoinitiator. The use of the high purity alicyclic polyepoxide provides unusually good thermal performance

  本发明提供了一种液体树脂组合物，其中包括 (a) 至少一种阳离子固化化合物，该化合物包含脂环族聚环氧化物，每个分子中 至少有两个环氧基团，单体纯度超过 94%； (b) 至少一种用于阳离子固化化合物的光引发剂； (c) 自由基固化成分和 (d) 自由基光引发剂。 使用高纯度脂环族聚环氧化物可提供优异的热性能
• Photocurable compositions with alicyclic epoxides of high monomer purity
  申请人：VANTICO INC.

  公开号：US20020160309A1

  公开（公告）日：2002-10-31

  The present invention relates to novel resin compositions containing at least one solid or liquid actinic radiation-curable and cationically polymerizable organic substance, an actinic radiation-sensitive initiator for cationic polymerization, an actinic radiation-curable and radical-polymerizable organic substance and an actinic radiation-sensitive initiator for radical polymerization. The actinic radiation-curable and cationically polymerizable organic substance is at least one glycidylether of a polyhydric aliphatic, alicyclic or aromatic alcohol having at least three epoxy groups with epoxy equivalent weight between 90 and 800 grams per equivalent, at least one solid or liquid alicyclic epoxide with an epoxy equivalent weight between 90 and 330 grams per equivalent having at least two epoxy groups and monomer purity greater than about 90% by weight, or at least a solid or liquid epoxycresol novolac or epoxyphenol novolac having epoxy equivalent weight between 130 and 350, or mixtures thereof. The use of the above-mentioned cationically polymerizable components substantially increases the heat deflection temperature of the cured articles while maintaining high photospeed, accuracy, wetting-recoatability, water resistance and good side wall finish. The present invention further relates to a method of producing a cured product, particularly a three-dimensional article, in which a compositions described above are treated with actinic radiation.

  本发明涉及新型树脂组合物，其中含有至少一种固态或液态可辐射固化和阳离子聚合的有机物、阳离子聚合的辐射敏感引发剂、可辐射固化和自由基聚合的有机物以及自由基聚合的辐射敏感引发剂。光辐射固化和可阳离子聚合的有机物是至少一种具有至少三个环氧基团的多水脂 族、脂环族或芳香族醇的缩水甘油醚，其环氧当量重量在 90 至 800 克之间、至少一种固体或液体脂环族环氧化物，其环氧当量重量介于 90 至 330 克/当量之间，至少具有两个环氧基团，单体纯度大于约 90%（以重量计），或至少一种固体或液体环氧甲酚酚醛或环氧苯酚酚醛，其环氧当量重量介于 130 至 350 之间，或它们的混合物。使用上述阳离子可聚合成分可大幅提高固化物的热变形温度，同时保持较高的光速、精度、润湿再涂覆性、耐水性和良好的侧壁光洁度。本发明还涉及一种生产固化产品，特别是三维制品的方法，在该方法中，上述组合物经过了光辐射处理。