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2,2-dimethyl-4-nitro-3-(p-tolyl)butanal | 1262832-34-7

中文名称
——
中文别名
——
英文名称
2,2-dimethyl-4-nitro-3-(p-tolyl)butanal
英文别名
2,2-Dimethyl-3-(4-methylphenyl)-4-nitrobutanal;2,2-dimethyl-3-(4-methylphenyl)-4-nitrobutanal
2,2-dimethyl-4-nitro-3-(p-tolyl)butanal化学式
CAS
1262832-34-7
化学式
C13H17NO3
mdl
——
分子量
235.283
InChiKey
RJECXNGTJDTDQY-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    2.5
  • 重原子数:
    17
  • 可旋转键数:
    4
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.46
  • 拓扑面积:
    62.9
  • 氢给体数:
    0
  • 氢受体数:
    3

反应信息

  • 作为产物:
    参考文献:
    名称:
    用于迈克尔和醛醇缩合反应的手性吡啶甲基胺:探查底物边界†
    摘要:
    在这里,我们报告了有关通过吡啶甲基胺有机催化剂模板(基于吡啶-伯胺基序的邻位手性二胺)增加底物宽度的研究。的加法环己酮 到 β-硝基苯乙烯 有很多催化剂溶液,但是 环戊酮异丁醛的添加仍然具有挑战性。PicAm- 3(10 mol%)允许迈克尔添加环戊酮 或者 异丁醛(5.0当量)β-硝基苯乙烯衍生物。相比之下,PicAm- 1(7.0 mol%)最适合催化Aldol反应环己酮 或者 环庚酮(3.3当量)与芳族醛。报告了18种产品,每种反应类型都报告了新产品(4b–d,9c)。通常注意到非常好的产率和立体选择性。需要酸添加剂的反应通过瞬时手性烯胺进行,并提出了双功能催化模型的机理实例。
    DOI:
    10.1039/c2ob26382c
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文献信息

  • Asymmetric Conjugate Addition of α,α-Disubstituted Aldehydes to Nitroalkenes Organocatalyzed by Chiral Monosalicylamides from trans-Cyclohexane-1,2-Diamines
    作者:José Martínez-Guillén、Jesús Flores-Ferrándiz、Cecilia Gómez、Enrique Gómez-Bengoa、Rafael Chinchilla
    DOI:10.3390/molecules23010141
    日期:——
    Primary amine-salicylamides derived from chiral trans-cyclohexane-1,2-diamines are used as organocatalysts for the enantioselective conjugate addition of α,α-disubstituted aldehydes to arylated and heteroarylated nitroalkenes. The reaction is performed in the presence of 4-dimethylaminopyridine as an additive in dichloromethane as a solvent at room temperature. The corresponding enantioenriched γ-nitroaldehydes
    衍生自手性反式-环己烷-1,2-二胺的伯胺-水杨酰胺用作有机催化剂,用于将 α,α-二取代醛对映选择性共轭加成到芳基化和杂芳基化硝基烯烃。该反应在作为添加剂的4-二甲氨基吡啶存在下在作为溶剂的二氯甲烷中在室温下进行。以高达 95% 的对映选择性获得相应的对映体富集的 γ-硝基醛。理论计算用于证明立体感应的原因。
  • Chiral picolylamines for Michael and aldol reactions: probing substrate boundaries
    作者:Thomas C. Nugent、Ahtaram Bibi、Abdul Sadiq、Mohammad Shoaib、M. Naveed Umar、Foad N. Tehrani
    DOI:10.1039/c2ob26382c
    日期:——
    organocatalyst template, a vicinal chiral diamine based on a pyridine-primary amine motif. The addition of cyclohexanone to β-nitrostyrene has many catalyst solutions, but cyclopentanone and isobutyraldehyde additions continue to be challenging. PicAm-3 (10 mol%) readily allows the Michael addition of cyclopentanone or isobutyraldehyde (5.0 equiv.) to β-nitrostyrene derivatives. By contrast, PicAm-1 (7.0 mol%)
    在这里,我们报告了有关通过吡啶甲基胺有机催化剂模板(基于吡啶-伯胺基序的邻位手性二胺)增加底物宽度的研究。的加法环己酮 到 β-硝基苯乙烯 有很多催化剂溶液,但是 环戊酮异丁醛的添加仍然具有挑战性。PicAm- 3(10 mol%)允许迈克尔添加环戊酮 或者 异丁醛(5.0当量)β-硝基苯乙烯衍生物。相比之下,PicAm- 1(7.0 mol%)最适合催化Aldol反应环己酮 或者 环庚酮(3.3当量)与芳族醛。报告了18种产品,每种反应类型都报告了新产品(4b–d,9c)。通常注意到非常好的产率和立体选择性。需要酸添加剂的反应通过瞬时手性烯胺进行,并提出了双功能催化模型的机理实例。
  • Practical access to highly enantioenriched quaternary carbon Michael adducts using simple organocatalysts
    作者:Thomas C. Nugent、Mohammad Shoaib、Amna Shoaib
    DOI:10.1039/c0ob00822b
    日期:——
    A three component catalyst system entailing an amino acid (OtBu-L-threonine), a hydrogen bond donor (sulfamide), and an amine base (DMAP) allows α-branched aldehyde addition to nitroalkenes in good to high yield and excellent ee. Importantly, the lowest reported catalyst loading (5.0 mol%) and aldehyde stoichiometry (1.2–2.0 equiv) is demonstrated and in most instances the best current product profile is observed.
    一种由氨基酸(OtBu-L-苏氨酸)、氢键供体(硫酰胺)和胺碱(DMAP)组成的三组分催化剂体系可使α-支链醛加成到硝基烯烃,产率高且ee值优异。重要的是,该催化剂的负载量(5.0 摩尔%)和醛的化学计量(1.2-2.0 等量)均达到了报告中的最低水平,而且在大多数情况下都能观察到最佳的当前产物曲线。
  • Organocatalysts and Methods of Use in Chemical Synthesis
    申请人:Wang Wie
    公开号:US20070244328A1
    公开(公告)日:2007-10-18
    The present invention pertains generally to compositions comprising organocatalysts that facilitate stereo-selective reactions and the method of their synthesis and use. Particularly, the invention relates to metal-free organocatalysts for facilitation of stereo-selective reactions, and the method of their synthesis and use. These compounds have the structure of the Formulas (I) and (II). Where X is independently selected from CH 2 , N—R a , O, S or C═O; Y is CH 2 , N—R a , O, S or C═O, with the proviso that at least one of X or Y is CH 2 , and preferably both of X and Y are CH 2 ; R a is H, an optionally substituted C 1 -C 12 alkyl, preferably an optionally substituted C 1 -C 6 alkyl including a C 3 -C 6 cyclic alkyl group, or an optionally substituted aryl group, preferably an optionally substituted phenyl group; R b is H, an optionally substituted C 1 -C 12 alkyl, preferably an optionally substituted C 1 -C 6 acyclic or a a C 3 -C 6 cyclic alkyl group, CIIO, N(Me)O, CO(S)R a or the group of Formula (III). Where R c and R d are each independently H, F, Cl, an optionally substituted C 1 -C 20 alkyl, preferably an optionally substituted C 1 -C 12 alkyl, more preferably a C 1 -C 6 alkyl, and an optionally substituted aryl group, or together R c and R d form an optionally substituted carbocyclic or optionally substituted heterocyclic ring; R 1 is OH, OR, NR′R″, NHC(═O)R, NHSO 2 R; R 2 is H, F, Cl, an optionally substituted C 1 -C 20 alkyl, preferably an optionally substituted C 1 C 6 alkyl, an optionally substituted aryl group or a ═O group (which establishes a carbonyl group with the carbon to which ═O is attached; R 3 is H, OH, F, Cl, Br, I, Cl, an optionally substituted C 1 -C 20 alkyl, alkenyl or alkynyl (“hydrocarbyl”) group, preferably an optionally substituted C 1 -C 6 alkyl, or an optionally substituted aryl, such that the carbon to which R 3 is attached has an R or S configuration; R is II, an optionally substituted C 1 -C 20 alkyl, preferably an optionally substituted C 1 -C 6 alkyl, or an optionally substituted aryl group, R′ and R″ are each independently H, an optionally substituted C 1 -C 20 alkyl group, preferably an optionally substituted C 1 -C 6 alkyl, or an optionally substituted aryl group; or together R′ and R″ form an optionally substituted heterocyclic, preferably a 4 to 7 membered optionally substituted heterocyclic group or an optionally substituted heteroaryl ring with the nitrogen to which R′ and R″ are attached; and wherein said compound is free from a metal catalyst.
    本发明涉及一种包含有机催化剂的组合物,该组合物促进立体选择性反应及其合成和使用的方法。特别地,本发明涉及无金属有机催化剂,以促进立体选择性反应,以及其合成和使用的方法。这些化合物具有公式(I)和(II)的结构。其中,X独立地选自CH2、N—Ra、O、S或C═O;Y为CH2、N—Ra、O、S或C═O,但至少X或Y中的一个为CH2,最好是X和Y都为CH2;Ra为H、可选取代的C1-C12烷基,最好是可选取代的C1-C6烷基,包括C3-C6环烷基,或可选取代的芳基,最好是可选取代的苯基;Rb为H、可选取代的C1-C12烷基,最好是可选取代的C1-C6非环烷基或C3-C6环烷基,CIIO、N(Me)O、CO(S)Ra或公式(III)的基团。其中,Rc和Rd各自独立地为H、F、Cl、可选取代的C1-C20烷基,最好是可选取代的C1-C12烷基,更好是C1-C6烷基,以及可选取代的芳基,或者Rc和Rd一起形成可选取代的碳环或可选取代的杂环;R1为OH、OR、NR′R″、NHC(═O)R、NHSO2R;R2为H、F、Cl、可选取代的C1-C20烷基,最好是可选取代的C1-C6烷基、可选取代的芳基或═O基团(与═O相连的碳原子上形成羰基基团);R3为H、OH、F、Cl、Br、I、Cl、可选取代的C1-C20烷基、烯基或炔基(“烃基”)团,最好是可选取代的C1-C6烷基,或可选取代的芳基,使得R3连接的碳原子具有R或S构型;R为II、可选取代的C1-C20烷基,最好是可选取代的C1-C6烷基,或可选取代的芳基团,R′和R″各自独立地为H、可选取代的C1-C20烷基团,最好是可选取代的C1-C6烷基,或可选取代的芳基团;或者R′和R″一起形成可选取代的杂环,最好是4到7个成员的可选取代的杂环基团或与R′和R″连接的氮原子一起形成可选取代的杂环芳基环;其中所述化合物不含金属催化剂。
  • US7968734B2
    申请人:——
    公开号:US7968734B2
    公开(公告)日:2011-06-28
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