3-(2-naphthyl)butan-2-one | 20849-46-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 3-(2-naphthyl)butan-2-one
• 英文别名: 3-Naphthalen-2-ylbutan-2-one
• CAS: 20849-46-1
• 化学式: C₁₄H₁₄O
• 分子量: 198.265
• InChiKey: JLCUMMFCRYVUJH-UHFFFAOYSA-N

物化性质

• 沸点：
  95-100 °C(Press: 0.15 Torr)
• 密度：
  1.058±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.21
• 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：

  3-(2-naphthyl)butan-2-one 、 丙二腈 在 吗啉 、 甲烷磺酸 作用下， 反应 1.0h， 以75%的产率得到2-(3-Naphthalen-2-ylbutan-2-ylidene)propanedinitrile
  参考文献：
  名称：

  溶剂的无凝结 酮类 和 丙二腈 由...催化 甲磺酸/吗啉系统

  摘要：

  通过Knoevenagel缩合制备亚甲基丙二腈。酮类 和 丙二腈 在下面 溶剂描述了无条件。收率高，反应时间短是使用甲磺酸 （MSA）/吗啉 用作 催化剂。该协议的广泛适用性体现在以下事实：不仅未结合，而且芳基-烷基酮类 得到令人满意的产量。

  DOI：

  10.1039/b820901d
• 作为产物：
  描述：

  2,3-dimethyl-2-(naphthalen-2-yl)oxirane 在 palladium diacetate 、 三丁基膦 作用下， 以 叔丁醇 为溶剂， 反应 0.5h， 以96%的产率得到3-(2-naphthyl)butan-2-one
  参考文献：
  名称：

  Palladium-Catalyzed Isomerization of Aryl-Substituted Epoxides:  A Selective Synthesis of Substituted Benzylic Aldehydes and Ketones

  摘要：

  Aryl-substituted epoxides bearing multiple methyl substituents on the epoxide ring isomerize in the presence of 5 mol % Pd(OAc)(2)PR3 (R = n-Bu, Ph) to form the corresponding benzylic aldehyde or ketone, with complete regioselectivity for the carbonyl compound formed via cleavage of the benzylic C-O bond. No allylic alcohols or products arising from alkyl migration are observed. Rapid reaction rates and nearly quantitative yields are obtained, even with highly sterically hindered epoxides, using tri-n-butylphosphine as ligand and tert-butyl alcohol as solvent. 2-Aryl-substituted epoxides with two methyl substituents on C3 are completely unreactive, consistent with an oxidative addition/beta-hydride elimination mechanism. Catalyst variation studies show that both Pd(OAc)(2) and PR3 are essential for optimal activity and that palladium catalysts formed in this manner are superior to other Pd(O) catalysts (e.g., Pd(PPh3)(4)). The reactivity of catalytic Pd(OAc)(2)/PR3 toward multiply-substituted epoxides is compared to traditional Lewis acid catalysts; the former is found to be much more selective for isomerization without skeletal rearrangement. A mechanistic rationale involving turnover-limiting S(N)2-like attack of Pd(O) at the benzylic carbon is proposed.

  DOI：

  10.1021/jo970743b

文献信息

• Synthesis of alkylphenanthrenes from naphthylalkylidenemalonodinitriles. A route to 1-methyl-, 2-methyl-, and 1,2-dimethylphenanthrene
  作者：Wojciech Krasodomski、Michał K Łuczyński、Jarosław Wilamowski、Janusz J Sepioł

  DOI：10.1016/s0040-4020(03)00884-6

  日期：2003.7

  The study has been carried out to evaluate the feasibility of synthesis of 1-methyl-, 2-methyl-, 1,2-dimethyl-, and 1-ethyl-2-methylphenanthrene through the annulation of the naphthalene system with the exploitation of the dicyanovinyl moiety of 2-naphthylalkylidenemalonodinitriles as an active electrophile in cold solutions of concentrated sulfuric acid. 2-(2-Naphthyl)propanal (3), 1-(2-naphthyl)propan-2-one

  已经进行了研究，以评估通过萘体系的环化并利用环戊烯的合成来合成1-甲基-，2-甲基-，1,2-二甲基-和1-乙基-2-甲基菲的可行性。 2-萘基亚烷基丙二腈的双氰基乙烯基部分在浓硫酸的冷溶液中作为活性亲电子试剂。2-（2-萘基）丙醛（3），1-（2-萘基）丙-2-酮（9），3-（2-萘基）丁-2-酮（14）和3-（2-将萘基）戊烷-2-酮（19）与丙二腈缩合，得到2-萘基亚烷基丙二腈，然后环化得到4-氨基-1-甲基菲-3-腈（5），4-氨基-2-甲基菲-3 -腈（11），4-氨基-1,2-二甲基菲-3-甲腈（16）和4-氨基-1-乙基-2-间甲基菲-3-甲腈（21）。除21外，腈基官能团已通过在碱性乙醇溶液中在高压（约3 MPa）和220-230°C温度下水解和脱羧而除去，以得到相应的4-氨基-甲基菲。菲胺的重氮化反应和与次磷酸的反应导致甲基菲的产率中等（50-52％）。
• 10.1002/anie.202407827
  作者：Lindner, Henry、Carreira, Erick M.

  DOI：10.1002/anie.202407827

  日期：——

  A photo-semipinacol rearrangement of unactivated allylic alcohols is reported. Aliphatic as well as aromatic groups participate as migrating groups, yielding a variety of α,α-disubstituted ketones. The operationally simple conditions prescribe 1 mol % benzothiazinoquinoxaline as organophotocatalyst, 0.5 mol % Co-salen, and 10 mol % lutidinium triflate and, importantly, display reactivity complementary

  据报道，未活化的烯丙醇发生光-半频那醇重排。脂肪族和芳香族基团作为迁移基团参与，产生各种 α,α-二取代酮。操作简单的条件规定 1 mol% 苯并噻嗪喹喔啉作为有机光催化剂、0.5 mol% Co-salen 和 10 mol% 三氟甲磺酸钚，重要的是，显示出与使用布朗斯台德酸的程序互补的反应性。
• Solvent-free condensations of ketones with malononitrile catalysed by methanesulfonic acid/morpholine system
  作者：M. Góra、B. Kozik、K. Jamroży、M. K. Łuczyński、P. Brzuzan、M. Woźny

  DOI：10.1039/b820901d

  日期：——

  The preparation of ylidenemalononitriles viaKnoevenagel condensations of ketones with malononitrile under solvent-free conditions is described. Good yields and short reaction time are the features observed with methanesulfonic acid (MSA)/morpholine used as the catalyst. The wide applicability of the protocol is shown by the fact that not only unconjugated, but also aryl-alkyl ketones gave satisfactory

  通过Knoevenagel缩合制备亚甲基丙二腈。酮类 和 丙二腈 在下面 溶剂描述了无条件。收率高，反应时间短是使用甲磺酸 （MSA）/吗啉 用作 催化剂。该协议的广泛适用性体现在以下事实：不仅未结合，而且芳基-烷基酮类 得到令人满意的产量。
• Palladium-Catalyzed Isomerization of Aryl-Substituted Epoxides:  A Selective Synthesis of Substituted Benzylic Aldehydes and Ketones
  作者：Sanjitha Kulasegaram、Robert J. Kulawiec

  DOI：10.1021/jo970743b

  日期：1997.9.1

  Aryl-substituted epoxides bearing multiple methyl substituents on the epoxide ring isomerize in the presence of 5 mol % Pd(OAc)(2)PR3 (R = n-Bu, Ph) to form the corresponding benzylic aldehyde or ketone, with complete regioselectivity for the carbonyl compound formed via cleavage of the benzylic C-O bond. No allylic alcohols or products arising from alkyl migration are observed. Rapid reaction rates and nearly quantitative yields are obtained, even with highly sterically hindered epoxides, using tri-n-butylphosphine as ligand and tert-butyl alcohol as solvent. 2-Aryl-substituted epoxides with two methyl substituents on C3 are completely unreactive, consistent with an oxidative addition/beta-hydride elimination mechanism. Catalyst variation studies show that both Pd(OAc)(2) and PR3 are essential for optimal activity and that palladium catalysts formed in this manner are superior to other Pd(O) catalysts (e.g., Pd(PPh3)(4)). The reactivity of catalytic Pd(OAc)(2)/PR3 toward multiply-substituted epoxides is compared to traditional Lewis acid catalysts; the former is found to be much more selective for isomerization without skeletal rearrangement. A mechanistic rationale involving turnover-limiting S(N)2-like attack of Pd(O) at the benzylic carbon is proposed.