1-trichloroacetoxycyclohexene | 22780-11-6

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 1-trichloroacetoxycyclohexene
• 英文别名: 1-Trichloracetoxy-cyclohexen-(1)；Cyclohexen-1-yl 2,2,2-trichloroacetate
• CAS: 22780-11-6
• 化学式: C₈H₉Cl₃O₂
• 分子量: 243.517
• InChiKey: SGEMMBLDAGZTMS-UHFFFAOYSA-N

物化性质

• 沸点：
  50-52 °C(Press: 0.09 Torr)
• 密度：
  1.39±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-trichloroacetoxycyclohexene 在 甲醇 、 trimethyltin methoxide 、 copper(II) sulfate 作用下， 以 四氢呋喃 为溶剂， 反应 17.0h， 生成 (R)-α-hydroxycyclohexanone
  参考文献：
  名称：

  Catalytic Enantioselective Synthesis of α-Aminooxy and α-Hydroxy Ketone Using Nitrosobenzene

  摘要：

  The highly enantioselective and O-selective nitroso aldol reaction of tin enolates 2 and nitrosobenzene (1) has been developed with the use of (R)-BINAP-silver complexes as a catalyst. After the various silver salts were surveyed, the AgOTf and the AgClO4 complex were found to be optimal in the O-selective nitroso aldol reaction in both asymmetric induction (up to 97% ee) and regioselection (O/N = >99/1), affording aminooxy ketone 3. The product 3 can be transformed to alpha-hydroxy ketone 5 without any loss of enantioselectivity. Thus, the method provides an efficient approach to the catalytic enantioselective introduction of oxygen alpha- to the carbonyl group.

  DOI：

  10.1021/ja0298702
• 作为产物：
  描述：

  环己酮 、 三氯乙酸酐 在 对甲苯磺酸 作用下， 生成 1-trichloroacetoxycyclohexene
  参考文献：
  名称：

  酸酐的反应—Ⅰ：酮与三氯乙酸酐的反应

  摘要：

  单独和在三氯乙酸和对甲苯磺酸的存在下，研究了饱和和不饱和酮与三氯乙酸酐的反应。

  DOI：

  10.1016/s0040-4020(01)82741-1

文献信息

• Dibutyltin dimethoxide-catalyzed aldol reaction of enol trichloroacetates
  作者：Akira Yanagisawa、Takayuki Sekiguchi

  DOI：10.1016/s0040-4039(03)01840-9

  日期：2003.9

  A catalytic aldol condensation of aldehydes with enol trichloroacetates was achieved using dibutyltin dimethoxide as a novel catalyst in a mixed solvent consisting of THF and MeOH. Various β-hydroxy ketones were diastereoselectively obtained in high yields up to 99%.

  使用二甲基二丁基锡作为新型催化剂，在由THF和MeOH组成的混合溶剂中，实现醛与烯醇三氯乙酸酯的醛醇缩合催化缩合反应。以高达99％的高收率非对映选择性地获得了各种β-羟基酮。
• Catalytic Asymmetric Cycloaddition Reaction of Alkenyl Trichloroacetates with Nitrones
  作者：Akira Yanagisawa、Atsuto Izumiseki、Takuya Sugita、Naoyuki Kushihara、Kazuhiro Yoshida

  DOI：10.1055/s-0031-1290094

  日期：2012.1

  (S)-BINOL-derived chiral tin dibromide possessing a 4-trifluoromethylphenyl group at 3- and 3′-positions as the chiral precatalyst in the presence of sodium ethoxide, sodium iodide, and ethanol. Optically active isoxazolidines with up to 95% ee were diastereoselectively obtained in high yields even from aliphatic aldehyde derived nitrones under the influence of the in situ generated chiral tin ethoxide iodide

  使用（S）-BINOL衍生的在3和3'-位具有4-三氟甲基苯基的手性二溴化锡作为手性预催化剂，在乙醇钠，乙醇钠存在下，实现了三氯乙酸烯基与硝酮的催化对映选择性环加成反应。碘化物和乙醇。在原位产生的手性乙氧基锡碘化物的影响下，即使从脂肪醛衍生的硝基也可以高收率选择性地非对映选择性地获得具有高达ee达95％的光学活性异恶唑烷。 不对称催化-环加成-异恶唑烷-硝酮-锡
• Catalytic Enantioselective Mannich-Type Reaction via a Chiral Silver Enolate
  作者：Akira Yanagisawa、Yuqin Lin、Ryoji Miyake、Kazuhiro Yoshida

  DOI：10.1021/ol403075u

  日期：2014.1.3

  A catalytic asymmetric Mannich-type reaction of alkenyl trichloroacetates with aldimines was achieved using SEGPHOS·AgOTf as the chiral precatalyst and N,N-diisopropylethylamine as the base precatalyst in the presence of 2,2,2-trifluoroethanol. Optically active β-amino ketones with up to >99% ee were syn-selectively obtained in moderate to high yields via the in situ generated chiral silver enolates

  在2,2,2-三氟乙醇存在下，以SEGPHOS·AgOTf为手性预催化剂，以N，N-二异丙基乙胺为基础预催化剂，实现了三氯乙酸烯基酯与醛亚胺的Mannich型催化不对称反应。通过原位产生的手性烯醇银，以中等至高产率合成选择性地获得了ee高达99％以上的旋光性β-氨基酮。
• Asymmetric Aldol Reaction of Alkenyl Esters with α-Keto Esters Catalyzed by Chiral Tin Alkoxides
  作者：Akira Yanagisawa、Chika Uchiyama、Kotaro Takagi

  DOI：10.1055/a-1665-9014

  日期：2021.12

  A catalytic enantioselective aldol reaction of alkenyl esters with α-keto esters was achieved by using an (R)-BINOL-derived chiral tin dibromide possessing 4-t-butylphenyl groups at the 3- and 3′-positions as a chiral precatalyst in the presence of sodium methoxide and methanol. Optically active aldol products possessing a chiral tertiary carbon were diastereoselectively obtained with up to 92% ee

  通过使用 (R)-BINOL 衍生的手性二溴化锡在 3-和 3'-位具有 4-叔丁基苯基作为手性预催化剂，实现了烯基酯与 α-酮酯的催化对映选择性羟醛反应。甲醇钠和甲醇的存在。具有手性叔碳的光学活性羟醛产物以非对映选择性获得，ee 高达 92%，产率中等至高，不仅来自环状烯基酯，而且在原位生成的手性甲醇锡的影响下也来自非环状酯。
• Asymmetric Aldol Reaction Catalyzed by a Chiral Phosphine-Silver Complex
  作者：Akira Yanagisawa、Ryoji Miyake、Kazuhiro Yoshida

  DOI：10.1002/ejoc.201402351

  日期：2014.7

  A catalytic asymmetric aldol reaction of alkenyl trihaloacetates or a γ,δ-unsaturated δ-lactone with aldehydes or an α-keto ester was achieved by using a 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl·silver trifluoromethanesulfonate complex as the chiral precatalyst and N,N-diisopropylethylamine as the base precatalyst in the presence of methanol. Optically active α-alkyl β-hydroxy ketones with enantioselectivities

  通过使用 2,2'-双（二苯基膦）-1,1'-联萘·三氟甲磺酸银实现了烯基三卤乙酸酯或 γ,δ-不饱和 δ-内酯与醛或 α-酮酯的催化不对称醛醇反应在甲醇存在下，络合物作为手性预催化剂，N,N-二异丙基乙胺作为碱预催化剂。通过原位生成的手性银烯醇化物，以中等至高产率非对映选择性地获得了对映选择性高达 95% ee 的光学活性 α-烷基 β-羟基酮。