2-(benzyloxy)-2-methylpropanal | 145486-31-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-(benzyloxy)-2-methylpropanal
• 英文别名: 2-benzyloxy isobutyraldehyde；2-benzyloxy-2-methylpropanal；2-benzyloxy-2-methylpropionaldehyde；2-methyl-2-phenylmethoxypropanal
• CAS: 145486-31-3
• 化学式: C₁₁H₁₄O₂
• 分子量: 178.231
• InChiKey: JRXDMMPRRCEHHL-UHFFFAOYSA-N

物化性质

• 沸点：
  238.0±15.0 °C(Predicted)
• 密度：
  1.015±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-(benzyloxy)-2-methylpropanal 在 Cp2Zr(OTf)2 、 四丁基氟化铵 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 5.0h， 生成 (2S,3R)-4-Benzyloxy-3-hydroxy-2,4-dimethyl-pentanoic acid methyl ester
  参考文献：
  名称：

  Mukaiyama Aldol Reactions Catalyzed by Zirconocene Bis(triflate) Complexes:  Stereochemistry and Mechanisms for C−C Bond Formation

  摘要：

  The aldol condensations of alpha- and beta-(benzyloxy) aldehydes with enol silanes, catalyzed by Cp2Zr(OTf)(2) . THF or Cp2Zr(OTf)(2), in a variety of solvents were studied. The simple diastereoselectivity of these reactions is modest and comparable to that observed using simple aldehydes of similar steric requirements. Studies have revealed that TMSOTf is directly produced on reaction with the zirconocene catalyst with the enol silane in nitroalkane solvent or is formed during catalysis in dichloromethane solution. Although TMSOTf is known to catalyze cross-aldol reactions under these conditions, the rate of this process is not always competitive with that observed using the zircanocene catalysts. In particular, sterically unhindered or aromatic aldehydes react via a mechanism that appears to be mainly Zr-catalyzed, based on both the difference in rate between Zr- and Si-mediated reactions as well as differences in enol silane/silyl triflate reactivity in crossover-type experiments. With sterically hindered aldehydes in dichloromethane or nitromethane, catalysis is mediated by Si. The Zr-catalyzed process occurs via formation of a Zr-aldolate complex from aldehyde and enol silane, with liberation of TMSOTf, followed by rate-limiting O-silylatian of the metal aldolate by TMSOTf, as revealed by both model studies and in situ monitoring during catalysis.

  DOI：

  10.1021/jo971803g
• 作为产物：
  描述：

  2-(苄氧基)-2-甲基丙酸 在 lithium aluminium tetrahydride 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 生成 2-(benzyloxy)-2-methylpropanal
  参考文献：
  名称：

  Mukaiyama Aldol Reactions Catalyzed by Zirconocene Bis(triflate) Complexes:  Stereochemistry and Mechanisms for C−C Bond Formation

  摘要：

  The aldol condensations of alpha- and beta-(benzyloxy) aldehydes with enol silanes, catalyzed by Cp2Zr(OTf)(2) . THF or Cp2Zr(OTf)(2), in a variety of solvents were studied. The simple diastereoselectivity of these reactions is modest and comparable to that observed using simple aldehydes of similar steric requirements. Studies have revealed that TMSOTf is directly produced on reaction with the zirconocene catalyst with the enol silane in nitroalkane solvent or is formed during catalysis in dichloromethane solution. Although TMSOTf is known to catalyze cross-aldol reactions under these conditions, the rate of this process is not always competitive with that observed using the zircanocene catalysts. In particular, sterically unhindered or aromatic aldehydes react via a mechanism that appears to be mainly Zr-catalyzed, based on both the difference in rate between Zr- and Si-mediated reactions as well as differences in enol silane/silyl triflate reactivity in crossover-type experiments. With sterically hindered aldehydes in dichloromethane or nitromethane, catalysis is mediated by Si. The Zr-catalyzed process occurs via formation of a Zr-aldolate complex from aldehyde and enol silane, with liberation of TMSOTf, followed by rate-limiting O-silylatian of the metal aldolate by TMSOTf, as revealed by both model studies and in situ monitoring during catalysis.

  DOI：

  10.1021/jo971803g

文献信息

• [EN] FLUORINE-SUBSTITUTED INDAZOLE COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS INDAZOLE SUBSTITUÉS PAR FLUOR ET LEURS UTILISATIONS
  申请人：SUNSHINE LAKE PHARMA CO LTD

  公开号：WO2018188590A1

  公开（公告）日：2018-10-18

  Fluorine-substituted indazole compounds, pharmaceutical compositions containing these compounds and uses thereof. The compounds and pharmaceutical compositions can be used as soluble guanylate cyclase simulators.

  氟取代吲唑化合物，含有这些化合物的药物组合物及其用途。这些化合物和药物组合物可用作可溶性鸟苷酸环化鸟苷酸酶模拟剂。
• [EN] PYRANOPYRIDONE INHIBITORS OF TANKYRASE<br/>[FR] INHIBITEURS PYRANOPYRIDONE DE LA TANKYRASE
  申请人：HOFFMANN LA ROCHE

  公开号：WO2013189904A1

  公开（公告）日：2013-12-27

  There are provided compounds of the formula or a pharmaceutically acceptable salt thereof wherein X, M, Y, R1 and R2 are as defined herein. The compounds have activity as anticancer agents.

  提供的化合物具有以下公式或其药学上可接受的盐，其中X、M、Y、R1和R2的定义如本文所述。这些化合物具有抗癌活性。
• Benzo-fused lactams that promote the release of growth hormone
  申请人：Merck & Co., Inc.

  公开号：US05206235A1

  公开（公告）日：1993-04-27

  There are disclosed certain novel compounds identified as benzo-fused lactams which promote the release of growth hormone in humans and animals. This property can be utilized to promote the growth of food animals to render the production of edible meat products more efficient, and in humans, to increase the stature of those afflicted with a lack of a normal secretion of natural growth hormone. Growth promoting compositions containing such benzo-fused lactams as the active ingredient thereof are also disclosed.

  已披露了一些新型化合物，被确定为苯并咪唑内酰胺，可促进人类和动物体内生长激素的释放。这种特性可以用于促进食用动物的生长，使可食用肉制品的生产更加高效，在人类身上，可以增加那些缺乏正常分泌天然生长激素的人的身高。还披露了含有苯并咪唑内酰胺作为活性成分的促生长组合物。
• 吡唑并吡啶类化合物及其用途
  申请人：广东东阳光药业有限公司

  公开号：CN108690016B

  公开（公告）日：2022-08-12

  本发明涉及一种吡唑并吡啶类化合物及其用途，进一步涉及包含所述化合物的药物组合物。本发明所述化合物或所述药物组合物可以用作可溶性鸟苷酸环化酶刺激剂。
• Stereoselectivity of the Honda–Reformatsky Reaction in Reactions with Ethyl Bromodifluoroacetate with α-Oxygenated Sulfinylimines
  作者：Clément Q. Fontenelle、Matthew Conroy、Mark Light、Thomas Poisson、Xavier Pannecoucke、Bruno Linclau

  DOI：10.1021/jo500396p

  日期：2014.5.2

  The Reformatsky reaction of ethyl bromodifluoroacetate to α-oxygenated sulfinylimines is described. Using Honda–Reformatsky conditions, the reaction proceeds with double diastereodifferentiation, with the configuration of the sulfinyl group determining the stereochemical course of the reaction. Excellent diastereoselectivities (>94:6) are obtained for the matched cases. In contrast, reaction with sulfinylimines

  描述了溴二氟乙酸乙酯对α-氧化的亚磺酰亚胺的Reformatsky反应。使用Honda-Reformatsky条件，反应会进行双非对映异构化，亚磺酰基的构型决定了反应的立体化学过程。对于匹配的情况，获得了极好的非对映选择性（> 94：6）。相反，与衍生自未取代的链烷烃的亚磺酰亚胺的反应几乎没有非对映选择性。