(R)-2-methyl-2-(p-tolyl)but-3-en-1-ol | 367520-82-9

• 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: (R)-2-methyl-2-(p-tolyl)but-3-en-1-ol
• 英文别名: (2R)-2-methyl-2-p-tolyl-3-buten-1-ol；(2R)-2-methyl-2-p-tolylbut-3-en-1-ol；2-Methyl-2-(4-methylphenyl)but-3-en-1-ol
• CAS: 367520-82-9
• 化学式: C₁₂H₁₆O
• 分子量: 176.258
• InChiKey: OJOIPOOROSMNIK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (R)-2-methyl-2-(p-tolyl)but-3-en-1-ol 在 盐酸 、 正丁基锂 、 水 、 碳酸氢钠 、 戴斯-马丁氧化剂 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 5.0h， 生成 (3R)-3-methyl-3-p-tolyl-4-pentanal
  参考文献：
  名称：

  （R）-α-cuparenone，（S）-cuparene的不对称全合成以及通过Meinwald重排和闭环复分解（RCM）反应的（R）-β-cuparenone的形式合成

  摘要：

  本文介绍了对映体纯的铜烯类倍半萜烯（R）-α-cuparenone，（S）-cuparene的不对称合成以及（R）-β-cuparenone的形式合成。对映体三取代的2,3-环氧醇衍生物的Meinwald重排是用于在目标分子中构建季构中心的关键反应。在合成的最后阶段探索了闭环复分解（RCM）反应，以接近天然产物的环戊烷核心。

  DOI：

  10.1016/j.tet.2016.12.072
• 作为产物：
  描述：

  (R)-(+)-methyl 3-hydroxy-2-methyl-2-(4-methylphenyl)propionate 在 草酰氯 、 二异丁基氢化铝 、 二甲基亚砜 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 生成 (R)-2-methyl-2-(p-tolyl)but-3-en-1-ol
  参考文献：
  名称：

  Asymmetric construction of quaternary carbons from chiral malonates : Total syntheses of (+)-epilaurene and (−)-Isolaurene.

  摘要：

  Enantiomerically pure (+)-epilaurene and (-)-isolaurene were obtained from the chiral malonic acid ester (R)-(+)-4, via the 4-methyl-4-p-tolylhex-5-en-1-al (S)-9 prepared by double Wittig reaction under sonication, which underwent subsequent radical induced cyclization.

  DOI：

  10.1016/s0957-4166(00)86009-7

文献信息

• Nickel-catalyzed enantioselective hydrovinylation of silyl-protected allylic alcohols: An efficient access to homoallylic alcohols with a chiral quaternary center
  作者：Qi Zhang、Shou-Fei Zhu、Yan Cai、Li-Xin Wang、Qi-Lin Zhou

  DOI：10.1007/s11426-010-4036-6

  日期：2010.9

  Asymmetric hydrovinylation of silyl-protected allylic alcohols catalyzed by nickel complexes of chiral spiro phosphoramidite ligands was developed. A series of homoallylic alcohols with a chiral quaternary center were produced in high yields (up to 97%) and high enantioselectivities (up to 95% ee). The reaction provides an efficient method for preparing bifunctional compounds with a chiral quaternary

  开发了由手性螺亚磷酰胺配体的镍配合物催化的甲硅烷基保护的烯丙基醇的不对称氢乙烯基化反应。以高收率（高达97％）和高对映选择性（高达ee的95％）生产了一系列具有手性四元中心的均丙醇。该反应提供了制备具有手性季碳中心的双官能化合物的有效方法。
• Construction of All‐Carbon Chiral Quaternary Centers through Cu ^I ‐Catalyzed Enantioselective Reductive Hydroxymethylation of 1,1‐Disubstituted Allenes with CO ₂
  作者：Jia Qiu、Shen Gao、Chaopeng Li、Lei Zhang、Zheng Wang、Xiaoming Wang、Kuiling Ding

  DOI：10.1002/chem.201903906

  日期：2019.11.4

  construction of all-carbon chiral quaternary centers through reductive hydroxymethylation of 1,1-disubstituted allenes with CO2 has been developed. In the presence of a copper/Mandyphos catalyst, CO2 is transformed into an alcohol oxidation level by an asymmetric reductive C-C bond formation with allenes by using hydrosilane (HSi(OMe)2 Me) as a reductant. The resulting chiral homoallylic alcohols are

  通过1，1-二取代的丙二烯与CO 2的还原羟甲基化反应，开发了全碳手性季中心的催化对映选择性结构。在铜/ Mandyphos催化剂的存在下，通过使用氢化硅烷（HSi（OMe）2 Me）作为还原剂，通过与丙二烯的不对称还原CC键形成，将CO2转化为醇氧化能级。所得手性均烯丙基醇是通用的合成中间体，可以方便地转化为多种有用的手性化学品。
• Synthetic approach to (-)-cuparenone by rhodium-catalyzed cyclization.
  作者：TETSUJI KAMETANI、KUNIAKI KAWAMURA、MASAYOSHI TSUBUKI、TOSHIO HONDA

  DOI：10.1248/cpb.33.4821

  日期：——

  (-)-α-Cuparenone, (17) was synthesized from the olefinic aldehyde (9) by utilizing a rhodium-catalyzed cyclization as a key step. The optically active aldehyde (7) was prepared by employing an asymmetric [2, 3] sigmatropic rearrangement of a quaternary L-prolinol derivative. The aldehyde (7) was also converted into its antipodal form (24) in several steps.

  (-)-α-Cuparenone (17) 是利用铑催化环化作为关键步骤，从烯烃醛 (9) 合成而来。光学活性醛（7）是通过对一种季L-脯氨醇衍生物进行不对称[2，3]西格玛托普重排而制备的。醛 (7) 还可通过几个步骤转化为其反式 (24)。
• PALLADIUM-CATALYZED COUPLING REACTION OF VINYL EPOXIDES, DIOL ACETONIDES, AND DIOL CARBONATES WITH ORGANOBISMUTH COMPOUNDS
  作者：Suk-Ku Kang、Hyung-Chul Ryu、Young-Taek Hong、Moon-Sung Kim、Sung-Won Lee、Jung-Hee Jung

  DOI：10.1081/scc-100104838

  日期：2001.1

  The palladium-catalyzed arylation reaction of vinyl epoxides with organobismuth compounds afforded the aryl-substituted (E)-allylic alcohols via ring opening of epoxides. Alternatively, the palladium-catalyzed reaction of diol acetonides and carbonates with bismuth derivatives afforded the aryl-substituted diol acetonides and carbonates without ring opening.

  钯催化的乙烯基环氧化物与有机铋化合物的芳基化反应通过环氧化物的开环得到芳基取代的 (E)-烯丙醇。或者，二醇丙酮化物和碳酸酯与铋衍生物的钯催化反应得到芳基取代的二醇丙酮化物和碳酸酯而没有开环。
• Asymmetric total synthesis of ( R )-α-cuparenone, ( S )-cuparene and formal synthesis of ( R )-β-cuparenone through Meinwald rearrangement and ring closing metathesis (RCM) reaction
  作者：Rajan Kumar、Joydev Halder、Samik Nanda

  DOI：10.1016/j.tet.2016.12.072

  日期：2017.2

  Asymmetric synthesis of enantiopure cuparenoid sesquiterpenes (R)-α-cuparenone, (S)-cuparene and a formal synthesis of (R)-β-cuparenone was presented in this article. Meinwald rearrangement of an enantiopure trisubstituted 2,3-epoxy alcohol derivative was the key reaction employed to construct the quaternary streocenter in the target molecules. Ring closing metathesis (RCM) reaction was explored in

  本文介绍了对映体纯的铜烯类倍半萜烯（R）-α-cuparenone，（S）-cuparene的不对称合成以及（R）-β-cuparenone的形式合成。对映体三取代的2,3-环氧醇衍生物的Meinwald重排是用于在目标分子中构建季构中心的关键反应。在合成的最后阶段探索了闭环复分解（RCM）反应，以接近天然产物的环戊烷核心。