benzophenone trimethylene acetal | 786-03-8

• 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: benzophenone trimethylene acetal
• 英文别名: 2,2-diphenyl-1,3-dioxolane；2,2-diphenyl-1,3-dioxane；2,2-diphenyl-[1,3]dioxane；2,2-Diphenyl-[1,3]dioxan；2.2-Diphenyl-dioxan-(1,3)；2.2-Diphenyl-1.3-dioxan；1,3-Dioxane, 2,2-diphenyl-
• CAS: 786-03-8
• 化学式: C₁₆H₁₆O₂
• 分子量: 240.302
• InChiKey: SLAAGSARDITLOC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  benzophenone trimethylene acetal 在 lithium aluminium tetrahydride 、 三氯化铝 作用下， 生成 3-(benzhydryloxy)propan-1-ol
  参考文献：
  名称：

  Superacid-Catalyzed Reductive Friedel−Crafts Reaction of Arenes Using Arenecarbaldehyde Acetals

  摘要：

  Reaction of 2-aryl-1,3-dioxane with arenes in the presence of a catalytic amount of trifluoromethanesulfonic acid gave the corresponding diarylmethanes in good to excellent yields. The acid-catalyzed Friedel-Crafts benzylation of arenes could altenatively be carried out using arenecarbaldehyde and 1,3-propanediol. The reaction was assumed to proceed through a redox process involving hydride shift from the cyclic acetal moiety to the benzylic carbon. The hydride shift was confirmed by the reaction with 5-ethyl-2-phenyl-4,4,6,6-tetradeuterio-1,3-dioxane, wherein more than 90% deuterium was incorporated into the benzylic carbon of the diphenylmethane. Diphenylmethyl ether Ph(2)CHOCH(2)CH(2)CH(2)OH also reacted with benzene to afford diphenylmethane under the same reaction conditions, suggesting that the ether should be the plausible intermediate that underwent the hydride shift.

  DOI：

  10.1021/jo961897e
• 作为产物：
  描述：

  二苯甲酮 、 1,3-丙二醇 在 四溴环己二烯-1-酮 、 原甲酸三乙酯 作用下， 以 乙醇 为溶剂， 反应 180.0h， 以20%的产率得到benzophenone trimethylene acetal
  参考文献：
  名称：

  2,4,4,6-Tetrabromo-2,5-cyclohexadienone (TABCO) as a Versatile, Efficient, and Chemoselective Catalyst for the Acetalization and Transacetalization of Carbonyl Compounds, the Preparation of Acetonides from Epoxides and Acylals (1,1-Diacetates) from Aldehydes

  摘要：

  介绍了在催化量的2,4,4,6-四溴-2,5-环己二烯酮（TABCO）存在下，从羰基化合物高效且化学选择性地制备缩醛和缩酮、缩醛交换反应、环氧化合物转化为乙缩醛以及醛制备酰缩醛的方法。

  DOI：

  10.1246/bcsj.75.2195

文献信息

• 2,4,4,6-Tetrabromo-2,5-cyclohexadienone (TABCO), N-Bromosuccinimide (NBS) and Bromine as Efficient Catalysts for Dithioacetalization and Oxathioacetalization of Carbonyl Compounds and Transdithioacetalization Reactions
  作者：Nasser Iranpoor、Habib Firouzabadi、Hamid Reza Shaterian、M. A. Zolfigol

  DOI：10.1080/10426500211712

  日期：2002.5.1

  6-tetrabromo-2,5-cyclohexadienone (TABCO), N-bromosuccinimide (NBS), and bromine as efficient catalysts for conversion of carbonyl compounds to their cyclic and acyclic dithioacetals and 1,3-oxathiolanes under mild reaction conditions are described. These catalysts are also used for efficient transdithioacetalization of acetals, diacetals, ketals, acylals, enamines, hydrazones, and oximes with high

  使用 2,4,4,6-四溴-2,5-环己二烯酮 (TABCO)、N-溴代琥珀酰亚胺 (NBS) 和溴作为有效催化剂将羰基化合物转化为环状和无环二硫缩醛和 1,3-描述了在温和反应条件下的硫杂环戊烷。这些催化剂还用于在硫醇存在下以高产率有效地将缩醛、二缩醛、缩酮、酰基、烯胺、腙和肟转二硫缩醛。
• Facile synthetic methods of acetals and crown ethers from the reaction of diphenyldiazomethane with 2,3-dichloro-5,6-dicyanobenzoquinone in the presence of alcohols
  作者：Takumi Oshima、Ryoji Nishioka、Toshikazu Nagai

  DOI：10.1016/0040-4039(80)80216-4

  日期：1980.1

  The reaction of diphenyldiazomethane with 2,3-dichloro-5,6-dicyano-benzoquinone in the presence of alcohols and thiols gave the corresponding benzophenone acetals and thioacetals at 20–25°C in 1,2-dichloro-ethane. The mechanism of the reaction will be discussed.

  在醇和硫醇存在下，二苯基重氮甲烷与2,3-二氯-5,6-二氰基-苯醌的反应在1,25-二氯乙烷中于20–25°C下得到相应的二苯甲酮乙缩醛和硫缩醛。将讨论该反应的机理。
• Highly efficient and chemoselective interchange of 1,3-oxathioacetals and dithioacetals to acetals promoted by N-halosuccinimide
  作者：Babak Karimi、Hassan Seradj、Jafar Maleki

  DOI：10.1016/s0040-4020(02)00389-7

  日期：2002.5

  Highly efficient interconversion of a range of 1,3-oxathiolanes, 1,3-dithiolanes and 1,3-dithianes to their acetals at ambient temperature using N-bromosuccinimide or N-chlorosuccinimide and different types of alcohols and diols was investigated.

  研究了在环境温度下使用N-溴代琥珀酰亚胺或N-氯代琥珀酰亚胺以及不同类型的醇和二醇将各种1,3-氧杂硫杂环戊烷，1,3-二硫杂环戊烷和1,3-二硫杂环戊烷高效缩醛转化为乙缩醛的过程。
• Tetrabutylammonium Tribromide (TBATB) as An Efficient Generator of HBr for an Efficient Chemoselective Reagent for Acetalization of Carbonyl Compounds
  作者：Rangam Gopinath、Sk. Jiaul Haque、Bhisma K. Patel

  DOI：10.1021/jo025701o

  日期：2002.8.1

  Acyclic and cyclic acetals of various carbonyl compounds were obtained in excellent yields under a mild reaction condition in the presence of trialkyl orthoformate and a catalytic amount of tetrabutylammonium tribromide (TBATB) in absolute alcohol. Chemoselective acetalization of an aldehyde in the presence of ketone, unsymmetrical acetal formation, shorter reaction times, mild reaction conditions

  在原甲酸三烷基酯和催化量的三丁基溴化四丁基铵（TBATB）在无水醇中存在的条件下，在温和的反应条件下，以优异的收率获得了各种羰基化合物的无环和环状缩醛。在酮存在下对醛进行化学选择性乙缩醛化，不对称缩醛形成，较短的反应时间，温和的反应条件，酸敏感保护基团的稳定性，高效率，所需产物的容易分离以及试剂的催化性质本方法学是一种实用的选择。
• Indium(III) triflate catalysed transacetalisation reactions of diols and triols under solvent-free conditions
  作者：Brendan M. Smith、Tomasz M. Kubczyk、Andrew E. Graham

  DOI：10.1016/j.tet.2012.07.048

  日期：2012.9

  acetals and ketals undergo transacetalisation in the presence of catalytic quantities of indium(III) triflate (In(OTf)3) and diols or triols under solvent-free conditions to generate the corresponding cyclic acetals and ketals in excellent yield. The methodology has been further developed to encompass a tandem acetalisation-acetal exchange protocol, which provides a facile and high yielding route to cyclic

  在无溶剂条件下，在催化量的三氟甲磺酸铟（III）（In（OTf）3）和二醇或三醇的存在下，无环缩醛和缩酮进行反缩醛化，从而以优异的产率生成相应的环状缩醛和缩酮。进一步开发了该方法，以涵盖串联缩醛化-缩醛交换方案，该方案在非常温和的反应条件下提供了一种从非反应性酮向环状缩酮的简便且高收率的途径。