2,2-dimethyl-3-undecanone | 40238-88-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,2-dimethyl-3-undecanone
• 英文别名: 2,2-dimethylundecan-3-one
• CAS: 40238-88-8
• 化学式: C₁₃H₂₆O
• 分子量: 198.349
• InChiKey: UMOAPENYQAYRQB-UHFFFAOYSA-N

物化性质

• 沸点：
  76-78 °C(Press: 2 Torr)
• 密度：
  0.825±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  14
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.92
• 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：

  2,2-dimethyl-3-undecanone 在 二氯[(S)-(-)-2,2'-双(二对甲苯基膦基)-1,1'-联萘](2-氨甲基吡啶)钌(II)RUCL2(AMPY) 、 potassium tert-butylate 、 氢气 作用下， 以 乙醇 为溶剂， 25.0 ℃ 、506.62 kPa 条件下， 反应 5.0h， 以93%的产率得到(R)-2,2-dimethyl-3-undecanol
  参考文献：
  名称：

  Asymmetric Hydrogenation of tert-Alkyl Ketones

  摘要：

  A combined system of RuCl2(tolbinap)(pica) and an alkaline or organic phosphazene base catalyzes asymmetric hydrogenation of sterically congested tert-alkyl ketones (TolBINAP = 2,2'-bis(di-4-tolylphosphino)-1,1'-binaphthyl, PICA = alpha-picolylamine). Hydrogenation with RuH(eta1-BH4)(tolbinap)(pica) does not require any strong base. Alcoholic solvents strongly affect the catalytic efficiency. The reaction proceeds smoothly in ethanol under 1-20 atm of H2 and at room temperature with a substrate to catalyst molar ratio of up to 100 000. Various aliphatic, aromatic, heteroaromatic, and olefinic tert-alkyl ketones are convertible to the corresponding chiral carbinols in high enantiomeric purity. Olefinic and heteroaromatic functions are left intact. Certain cyclic ketones are also usable. The mode of enantioface selection is consistent and predictable.

  DOI：

  10.1021/ja052071+
• 作为产物：
  描述：

  壬醛 在 sodium dichromate 、 硫酸 、 溶剂黄146 作用下， 以 乙醚 为溶剂， 反应 8.0h， 生成 2,2-dimethyl-3-undecanone
  参考文献：
  名称：

  Asymmetric Hydrogenation of tert-Alkyl Ketones

  摘要：

  A combined system of RuCl2(tolbinap)(pica) and an alkaline or organic phosphazene base catalyzes asymmetric hydrogenation of sterically congested tert-alkyl ketones (TolBINAP = 2,2'-bis(di-4-tolylphosphino)-1,1'-binaphthyl, PICA = alpha-picolylamine). Hydrogenation with RuH(eta1-BH4)(tolbinap)(pica) does not require any strong base. Alcoholic solvents strongly affect the catalytic efficiency. The reaction proceeds smoothly in ethanol under 1-20 atm of H2 and at room temperature with a substrate to catalyst molar ratio of up to 100 000. Various aliphatic, aromatic, heteroaromatic, and olefinic tert-alkyl ketones are convertible to the corresponding chiral carbinols in high enantiomeric purity. Olefinic and heteroaromatic functions are left intact. Certain cyclic ketones are also usable. The mode of enantioface selection is consistent and predictable.

  DOI：

  10.1021/ja052071+

文献信息

• Practical one-pot preparation of ketones from aryl and alkyl bromides with aldehydes and DIH via Grignard reagents
  作者：Souya Dohi、Katsuhiko Moriyama、Hideo Togo

  DOI：10.1016/j.tet.2012.05.059

  日期：2012.8

  groups, such as ester, nitrile, ketone, and nitro groups with i-PrMgCl·LiCl or PhMgCl instead of Mg, also provided the corresponding diaryl and alkyl aryl ketones in good yields. The above methods are simple and practical transition-metal-free methods for the preparation of various diaryl ketones and alkyl aryl ketones bearing electron-rich aromatic groups and electron-deficient aromatic groups, as well

  通过衍生自芳基或烷基溴化物的格利雅试剂的反应，然后与芳族或脂族醛的反应以及随后用1,3-二碘的处理，可以有效地以高收率高效地制备各种二芳基酮，烷基芳基酮和二烷基酮。一锅法中的-5,5-二甲基乙内酰脲和K 2 CO 3。相同的处理的芳族溴化物轴承吸电子基团，如酯，腈，酮和硝基与我-PrMgCl·LiCl或PhMgCl代替Mg，也以良好的收率提供了相应的二芳基和烷基芳基酮。以上方法是用于制备各种带有富电子芳族基团和缺电子芳族基团的二芳基酮和烷基芳基酮以及二烷基酮的简单且实用的无过渡金属的方法。
• Palladium-catalyzed carbonylative cross-coupling reaction of iodoalkanes with 9-alkyl-9-BBN derivatives. A direct and selective synthesis of ketones
  作者：Tatsuo Ishiyama、Norio Miyaura、Akira Suzuki*

  DOI：10.1016/0040-4039(91)80445-c

  日期：1991.11

  The synthesis of unsymmetrical ketones by means of the palladium-catalyzed carbonylative cross-coupling reaction of 9-alkyl-9-BBN derivatives with iodoalkanes under a carbon monoxide atmosphere is described.

  描述了通过一氧化碳气氛下9-烷基-9-BBN衍生物与碘代烷烃的钯催化的羰基交叉偶联反应来合成不对称酮。
• Stereodivergent synthesis of alkenes by controllable <i>syn</i>-/<i>anti</i>-fragmentation of β-hydroxysulfonyl intermediates
  作者：Bartosz Górski、Dariusz Basiak、Łukasz Grzesiński、Michał Barbasiewicz

  DOI：10.1039/c9ob01563a

  日期：——

  The reduction of the carbonyl group in acylated trifluoroethyl alkanesulfonates follows the Felkin-Ahn selectivity, and the so-formed diastereomeric β-hydroxysulfonyl intermediates undergo syn- and anti-fragmentation, depending on the reaction conditions. In effect, isomeric E- and Z-alkenes are formed in a stereodivergent manner, which mimics the mechanistic manifold of the Peterson olefination.

  酰化的三氟乙基链烷磺酸盐中羰基的还原遵循Felkin-Ahn选择性，并且根据反应条件，如此形成的非对映异构体β-羟基磺酰基中间体会发生合成和反片段化。实际上，以立体发散的方式形成异构的E-和Z-烯烃，其模仿了Peterson烯烃化反应的机理。
• Hindered organoboron groups in organic chemistry. 24. The condensation of aliphatic aldehydes with dimesitylboron stabilised carbanions to give ketones.
  作者：Andrew Pelter、Keith Smith、Said M.A. Elgendy、Martin Rowlands

  DOI：10.1016/s0040-4020(01)87982-5

  日期：1993.8

  The condensation of boron stabilised carbanions, Mes2BCHLiR1, (R1≠H) with aliphatic aldehydes, R2CHO, followed by treatment with trifluoroacetic anhydride (TFAA) or N-chlorosuccinimide (NCS) is an unique, broadly applicable redox process that yields ketones, R1CH2COR2, directly and in high yields. The anion Mes2BCH2Li (Mes2BCHLiR1, R1H) gives high yields of alkenes, R2CHCH2 in the same conditions

  硼稳定的碳负离子Mes 2 BCHLiR 1（R 1 ≠H）与脂族醛R 2 CHO的缩合，然后用三氟乙酸酐（TFAA）或N-氯代琥珀酰亚胺（NCS）处理是一种独特的，广泛适用的氧化还原工艺可以直接且高产率地产生酮R 1 CH 2 COR 2。阴离子Mes 2 BCH 2 Li（Mes 2 BCHLiR 1，R 1 ＝ H）在相同条件下产生高产率的烯烃R 2 CH ＝ CH 2。
• Asymmetric Hydrogenation of<i>tert</i>-Alkyl Ketones: DMSO Effect in Unification of Stereoisomeric Ruthenium Complexes
  作者：Tomoya Yamamura、Hiroshi Nakatsuka、Shinji Tanaka、Masato Kitamura

  DOI：10.1002/anie.201304408

  日期：2013.8.26

  Face off: The ruthenium complexes of a new axially chiral PNN ligand (L) are highly efficient in the presence of dimethylsulfoxide (DMSO) for hydrogenation of both functionalized and unfunctionalized tert‐alkyl ketones. DMSO is thought to narrow down the many possible complex stereoisomers into a single facial L/Ru complex, thus enhancing the reactivity, selectivity, and productivity.

  面临的挑战：新型的轴向手性PNN配体（L）的钌络合物在二甲基亚砜（DMSO）的存在下对官能化和未官能化叔烷基酮的加氢都非常有效。DMSO被认为可以将许多可能的复杂立体异构体缩小为单个面部L / Ru复杂物，从而提高了反应性，选择性和生产率。