p-Cl-Phenylsilacyclobutan | 57465-49-3

• 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: p-Cl-Phenylsilacyclobutan
• 英文别名: 1-(4-chlorophenyl)-1-methylsilacyclobutane；1-(4-chloro-phenyl)-1-methyl-siletane；1-(4-chlorophenyl)-1-methylsiletane
• CAS: 57465-49-3
• 化学式: C₁₀H₁₃ClSi
• 分子量: 196.752
• InChiKey: PHZGSIAWOJSNHC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.03
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  丁炔二酸二甲酯 、 p-Cl-Phenylsilacyclobutan 在 allyl(cyclopentadiene)palladium(II) 、 10,16-dimethyl-N,N-bis[(1S)-1-phenylethyl]-12,14-dioxa-13-phosphapentacyclo[13.8.0.02,11.03,8.018,23]tricosa-1(15),2(11),3(8),9,16,18(23)-hexaen-13-amine 作用下， 以 甲苯 为溶剂， 反应 14.0h， 以97%的产率得到dimethyl (S)-1-(4-chlorophenyl)-1-methyl-1,4,5,6-tetrahydrosiline-2,3-dicarboxylate
  参考文献：
  名称：

  Palladium-Catalyzed Desymmetrization of Silacyclobutanes with Alkynes: Enantioselective Synthesis of Silicon-Stereogenic 1-Sila-2-cyclohexenes and Mechanistic Considerations

  摘要：

  A palladium-catalyzed enantioselective desymmetrization of silacyclobutanes with alkynes has been developed to give silicon-stereogenic 1-sila-2-cyclohexenes with high enantioselectivity. The products thus obtained undergo further derivatizations with complete stereoselectivity, and a new catalytic cycle involving alkyne coordination (oxidative cyclization)-transmetalation (sigma-bond metathesis)-reductive elimination has also been proposed.

  DOI：

  10.1021/ol301191u
• 作为产物：
  描述：

  4-氯苯基溴化镁 以 四氢呋喃 、 乙醚 为溶剂， 反应 71.0h， 生成 p-Cl-Phenylsilacyclobutan
  参考文献：
  名称：

  Palladium-Catalyzed Desymmetrization of Silacyclobutanes with Alkynes: Enantioselective Synthesis of Silicon-Stereogenic 1-Sila-2-cyclohexenes and Mechanistic Considerations

  摘要：

  A palladium-catalyzed enantioselective desymmetrization of silacyclobutanes with alkynes has been developed to give silicon-stereogenic 1-sila-2-cyclohexenes with high enantioselectivity. The products thus obtained undergo further derivatizations with complete stereoselectivity, and a new catalytic cycle involving alkyne coordination (oxidative cyclization)-transmetalation (sigma-bond metathesis)-reductive elimination has also been proposed.

  DOI：

  10.1021/ol301191u

文献信息

• Rhodium‐Catalyzed Reaction of Silacyclobutanes with Unactivated Alkynes to Afford Silacyclohexenes
  作者：Hua Chen、Yi Chen、Xiaoxiao Tang、Shunfa Liu、Runping Wang、Tianbao Hu、Lu Gao、Zhenlei Song

  DOI：10.1002/anie.201814143

  日期：2019.3.26

  A Rh‐catalyzed reaction of silacyclobutanes (SCBs) with unactivated alkynes has been developed to form silacyclohexenes with high chemoselectivity. Good enantioselectivity at the stereogenic silicon center was achieved using a chiral phosphoramidite ligand. The resulting silacyclohexenes are useful scaffolds for synthesizing structurally attractive silacyclic compounds.

  硅烷环丁烷（SCB）与未活化炔烃的Rh催化反应已被开发出来，可形成具有高化学选择性的硅烷环己烯。使用手性亚磷酰胺配体在立体硅中心具有良好的对映选择性。所得的硅杂环己烯是用于合成结构上有吸引力的硅环化合物的有用的支架。
• Ring Expansion of Silacyclobutanes with Allenoates to Selectively Construct 2- or 3-(<i>E</i>)-Enoate-Substituted Silacyclohexenes
  作者：Xiaoxiao Tang、Yan Zhang、Yulang Tang、Yi Li、Jiajing Zhou、Duyang Wang、Lu Gao、Zhishan Su、Zhenlei Song

  DOI：10.1021/acscatal.1c05831

  日期：2022.5.6

  structural diversity of silacycles has been largely limited due to the lack of general synthetic methods. Here, we report an efficient synthesis of exo-cyclic enoate-substituted silacyclohexenes by the ring expansion of silacyclobutanes with allenoates. The reaction proceeds with two regioselectivities during Si–C bond insertion. In the presence of the Pd/PR3 catalyst, unsubstituted allenoates undergo β, γ-insertion

  硅环是含硅功能分子中最重要的核心框架之一。然而，由于缺乏通用的合成方法，硅环的结构多样性在很大程度上受到了限制。在这里，我们报告了通过硅环丁烷与烯丙酸酯的扩环来有效合成外环烯酸酯取代的硅环己烯。在 Si-C 键插入过程中，反应以两种区域选择性进行。在 Pd/PR 3催化剂存在下，未取代的烯丙酸酯经历 β, γ-插入形成 Si-Cβ 键，得到 2-( E)-烯酸酯取代的硅环己烯。在该途径中，手性亚磷酰胺配体用于对映选择性构建立体硅中心。在第二种途径中，在 PtCl 2催化剂存在下，α-取代的烯丙酸酯经历 γ，β-插入形成 Si-Cγ 键，产生 3-( E )-烯酸酯取代的硅环己烯。已经进行了控制实验和密度泛函理论计算，以了解 Pd 和 Pt 催化的扩环反应的区域和立体化学结果。
• Electronic effects of silicon in phenylsilacyclobutanes
  作者：T. V. Pyatkina、V. F. Traven'、� D. Babich、V. N. Karel'skii、B. I. Stepanov

  DOI：10.1007/bf00930156

  日期：1975.9
• Nuclear-substituted 1-phenyl-1-methyl-1-silacyclobutane derivatives
  作者：N. V. Ushakov、V. M. Vdovin

  DOI：10.1007/bf00946912

  日期：1978.7
• USHAKOV N. V.; VDOVIN V. M., IZV. AN CCCP. CEP. XIM., 1978, HO 7, 1686-1688
  作者：USHAKOV N. V.、 VDOVIN V. M.

  DOI：——

  日期：——