(E)-3-(4-(tert-butyl)phenyl)-2-methylacrylaldehyde | 180850-14-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂醛
• 英文名称: (E)-3-(4-(tert-butyl)phenyl)-2-methylacrylaldehyde
• 英文别名: 3-(4-tert-butylphenyl)-2-methylprop-2-enal；p-tert-Butyl-2-methylcinnamaldehyde；(E)-3-(4-tert-butylphenyl)-2-methylprop-2-enal
• CAS: 180850-14-0
• 化学式: C₁₄H₁₈O
• 分子量: 202.296
• InChiKey: ZZSXZEFWZXSQPX-PKNBQFBNSA-N

物化性质

• 沸点：
  300.8±11.0 °C(Predicted)
• 密度：
  0.959±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (E)-3-(4-(tert-butyl)phenyl)-2-methylacrylaldehyde 在 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 反应 2.5h， 以93%的产率得到(E)-3-(4-(tert-butyl)phenyl)-2-methylprop-2-en-1-ol
  参考文献：
  名称：

  使用手性膦-亚磷酸酯配体的格氏试剂对肉桂酸铜的对映选择性铜催化烯丙基烷基化

  摘要：

  使用格氏试剂的铜（I）催化的E -3-芳基-烯丙基氯化物（肉桂酰氯）的S N 2'型烯丙基取代代表了一种合成具有苄基立体中心的化合物的有效方法。通过筛选小的模块化手性膦-亚磷酸酯配体文库，确定了一种新的基于铜（I）的催化剂体系，该体系可以以极高的区域和对映体选择性进行此类反应。使用TADDOL衍生的配体（3 mol％），溴化铜（I）·二甲基硫醚（CuBr·SMe 2）（2.5 mol％）和甲基叔丁基醚（MTBE）获得最佳结果。制备了具有高达99％ee的各种（1-烷基-烯丙基）苯衍生物（GC）的分离产率高达99％。在大多数情况下，产物包含少于3％的线性区域异构体（除了邻位取代的底物）。富电子和电子不足的肉桂酰氯均已成功使用。通过比较实验和计算出的CD光谱来确定产品的绝对构型。通过与亚硫酰氯反应，由相应的醇制备底物。通过在MTBE中在三苯基膦（PPh 3）（3mol％）的存在下在低温下用CuBr·SMe

  DOI：

  10.1002/adsc.201000213
• 作为产物：
  描述：

  叔丁基苯 、 异丁醛 在 dipotassium peroxodisulfate 、 palladium diacetate 、 三氟乙酸 、 β-丙氨酸 作用下， 反应 24.0h， 以60%的产率得到(E)-3-(4-(tert-butyl)phenyl)-2-methylacrylaldehyde
  参考文献：
  名称：

  Dehydrogenative β-Arylation of Saturated Aldehydes Using Transient Directing Groups

  摘要：

  An unprecedented cross-dehydrogenative-coupling (CDC) reaction of saturated aldehyde beta-C-H with arenes to form cinnamaldehydes via the cleavages of four C-H bonds has been developed. The reaction possesses complete E-stereoselectivity for the C = C double bond. The protocol is featured by atom and step economy, mild reaction conditions, and convenient operation.

  DOI：

  10.1021/acs.orglett.9b00695

文献信息

• Heterocyclics useful as fungicides and fungicidal compositions thereof
  申请人：Hoffmann-La Roche Inc.

  公开号：US04241058A1

  公开（公告）日：1980-12-23

  Heterocyclic compounds characterized by the formula ##STR1## wherein R.sub.1, R.sub.3, R.sub.4, R.sub.5, R.sub.6, X and z are as hereinafter set forth, prepared, inter alia, by reacting a compound characterized by the formula ##STR2## with an amine characterized by the formula ##STR3## wherein R.sub.1, R.sub.3, R.sub.4, R.sub.5, R.sub.6, X and Y are as hereinafter set forth, are described. The end products are useful as fungicidal agents.

  以公式##STR1##为特征的杂环化合物，其中R1、R3、R4、R5、R6、X和Z如后文所述，通过至少与一种公比为##STR2##的化合物与一种公比为##STR3##的胺反应而制备，其中R1、R3、R4、R5、R6、X和Y如后文所述。所述最终产品可用作杀真菌剂。
• CATALYST FOR ASYMMETRIC HYDROGENATION AND METHOD FOR MANUFACTURING OPTICALLY ACTIVE CARBONYL COMPOUND USING THE SAME
  申请人：YAMADA Shinya

  公开号：US20120136176A1

  公开（公告）日：2012-05-31

  The present invention provides a catalyst used for manufacturing an optically active carbonyl compound by selective asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which is insoluble in a reaction mixture, and a method for manufacturing the corresponding optically active carbonyl compound. Particularly, the invention provides a catalyst for obtaining an optically active citronellal useful as a flavor or fragrance, by selective asymmetric hydrogenation of citral, geranial or neral. The invention relates to a catalyst for asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which comprises: a powder of at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table, or a metal-supported substance in which the at least one metal is supported on a support; an optically active peptide compound; and an acid, and also relates to a method for manufacturing an optically active carbonyl compound using the same.

  本发明提供了一种用于通过选择性不对称加氢α，β-不饱和羰基化合物制备光学活性羰基化合物的催化剂，该催化剂在反应混合物中不溶解，并提供了制备相应光学活性羰基化合物的方法。特别地，该发明提供了一种催化剂，通过选择性不对称加氢柠檬醛、香叶醛或柠檬醛制备出用作香料或芳香剂的光学活性香茅醛。该发明涉及一种用于不对称加氢α，β-不饱和羰基化合物的催化剂，包括：来自周期表第8至第10族金属中至少一种金属的粉末，或者至少一种金属负载物质，其中至少一种金属负载在一种载体上；一种光学活性肽化合物；和一种酸，还涉及使用该催化剂制备光学活性羰基化合物的方法。
• Complex Polyheterocycles and the Stereochemical Reassignment of Pileamartine A via Aza-Heck Triggered Aryl C–H Functionalization Cascades
  作者：Benjamin T. Jones、Javier García-Cárceles、Lewis Caiger、Ian R. Hazelden、Richard J. Lewis、Thomas Langer、John F. Bower

  DOI：10.1021/jacs.1c08615

  日期：2021.9.29

  N-polyheterocycles can be accessed via intramolecular Pd(0)-catalyzed alkene 1,2-aminoarylation reactions. The method uses N-(pentafluorobenzoyloxy)carbamates as the initiating motif, and this allows aza-Heck-type alkene amino-palladation in advance of C–H palladation of the aromatic component. The chemistry is showcased in the first total synthesis of the complex alkaloid (+)-pileamartine A, which has resulted in

  结构复杂的苯并和螺融合的 N-多杂环可以通过分子内 Pd(0)-催化的烯烃 1,2-氨基芳基化反应获得。该方法使用N -（五氟苯甲酰氧基）氨基甲酸酯作为起始基序，这允许在芳烃组分的 C-H 钯化之前进行 aza-Heck 型烯烃氨基化。这种化学反应在复杂生物碱 (+)-pileamartine A 的首次全合成中得到了展示，这导致了其绝对立体化学的重新分配。
• CATALYST FOR ASYMMETRIC HYDROGENATION
  申请人：MAEDA Hironori

  公开号：US20100324338A1

  公开（公告）日：2010-12-23

  This invention aims at providing a catalyst for producing an optically active aldehyde or an optically active ketone, which is an optically active carbonyl compound, by carrying out selective asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, particularly a catalyst which is insoluble in a reaction mixture for obtaining optically active citronellal which is useful as a flavor or fragrance, by carrying out selective asymmetric hydrogenation of citral, geranial or neral; and a method for producing a corresponding optically active carbonyl compound. The invention relates to a catalyst for asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which comprises a powder of at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table, or a metal-supported substance in which at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table is supported on a support, an optically active cyclic nitrogen-containing compound and an acid.

  这项发明旨在通过对α，β-不饱和羰基化合物进行选择性不对称加氢，特别是通过对柠檬醛、香叶醛或柠檬醛进行选择性不对称加氢，从而提供用作香料或香精的有用的光学活性香茅醛的催化剂，该香茅醛是一种光学活性羰基化合物；以及生产相应的光学活性羰基化合物的方法。该发明涉及一种用于不对称加氢α，β-不饱和羰基化合物的催化剂，其包括来自周期表第8至第10族金属中至少一种金属的粉末，或者至少一种来自周期表第8至第10族金属的金属负载物质，该金属负载在一种支撑物上，还包括光学活性的含氮环化合物和酸。
• Method of using substituted pyrazolo [1,5-a] pyrimidines
  申请人：Wang Daniel Yanong

  公开号：US20060063784A1

  公开（公告）日：2006-03-23

  This invention relates to novel methods of use of certain pyrazolo[1,5-a]pyrimidine compounds and the therapeutically acceptable salts thereof. This invention also relates to novel methods of using these compounds as anti-proliferative agents in mammals, including humans.

  这项发明涉及某些吡唑并[1,5-a]嘧啶化合物及其治疗上可接受的盐的新用途方法。该发明还涉及将这些化合物作为抗增殖剂在哺乳动物，包括人类中的新用途方法。

表征谱图