(3R,4R)-3-(4-methoxyphenyl)-4,6-diphenyl-1-tosyl-3,4-dihydropyridin-2(1H)-one | 1380402-54-9

• 分子结构分类: 有机化合物
• 英文名称: (3R,4R)-3-(4-methoxyphenyl)-4,6-diphenyl-1-tosyl-3,4-dihydropyridin-2(1H)-one
• CAS: 1380402-54-9
• 化学式: C₃₁H₂₇NO₄S
• 分子量: 509.626
• InChiKey: NOWRPAQAZZVJAJ-JDXGNMNLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.14
• 重原子数：
  37.0
• 可旋转键数：
  6.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  63.68
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  反式-查耳酮 在 (+)-苯并四咪唑 、 四氯化钛 、 三乙胺 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 18.0h， 生成 (3R,4R)-3-(4-methoxyphenyl)-4,6-diphenyl-1-tosyl-3,4-dihydropyridin-2(1H)-one 、 3-(4-methoxyphenyl)-4,6-diphenyl-1-tosyl-3,4-dihydropyridin-2(1H)-one
  参考文献：
  名称：

  二氢吡啶酮：催化不对称合成，N到C磺酰基转移和衍生化

  摘要：

  苯并四咪唑（1）促进了从芳酸中衍生出来的烯醇铵盐与N-甲苯磺酰基-α，β-不饱和酮亚胺的反应，从而使二氢吡啶酮具有非对映异构和对映异构控制性（见方案）。这些产品容易进行N-至C-磺酰基的光异构化，并衍生化得到立体定义的哌啶和四氢吡喃。

  DOI：

  10.1002/anie.201109061

文献信息

• Enantioselective Activation of Stable Carboxylate Esters as Enolate Equivalents <i>via</i> N-Heterocyclic Carbene Catalysts
  作者：Lin Hao、Yu Du、Hui Lv、Xingkuan Chen、Huishen Jiang、Yaling Shao、Yonggui Robin Chi

  DOI：10.1021/ol300676w

  日期：2012.4.20

  The first N-Heterocyclic Carbene (NHC) mediated activation of stable carboxylate esters to generate enolate intermediates is disclosed. The catalytically generated arylacetic ester enolates undergo enantioselective reactions with α,β-unsaturated imines.

  公开了第一种由N-杂环卡宾（NHC）介导的稳定羧酸酯的活化以生成烯醇酸酯中间体的方法。催化生成的芳酯酸酯烯酸酯与α，β-不饱和亚胺进行对映选择性反应。
• Rhodium and Isothiourea Dual Catalysis: Enantiodivergent Transformation of Terminal Alkynes
  作者：Tao Fan、Zhipeng Shi、Qian-Wei Gong、Jin Song、Liu-Zhu Gong

  DOI：10.1021/acs.orglett.4c00029

  日期：2024.2.23

  A dual rhodium/isothiourea catalytic system was developed for the enantiodivergent transformation of terminal alkynes. Under synergistic rhodium/isothiourea dual catalysis, terminal alkynes can be creatively utilized as precursors for C1-ammonium enolate species, which subsequently participate in [4 + 2] and [2 + 2] annulation reactions with α,β-unsaturated ketimines or ketones, respectively. A wide

  开发了铑/异硫脲双催化系统用于末端炔烃的对映发散转化。在协同铑/异硫脲双重催化下，末端炔烃可以创造性地用作C1-烯醇铵物种的前体，随后参与与α,β-不饱和酮亚胺或酮的[4 + 2]和[2 + 2]成环反应，分别。以优异的产率和立体选择性（高达 >20:1 dr，98% ee）获得了多种手性内酰胺和内酯。
• A Recyclable, Immobilized Analogue of Benzotetramisole for Catalytic Enantioselective Domino Michael Addition/Cyclization Reactions in Batch and Flow
  作者：Javier Izquierdo、Miquel A. Pericàs

  DOI：10.1021/acscatal.5b02121

  日期：2016.1.4

  A polystyrene-supported, enantiopure benzote-tramisole (BTM) analogue (5) has been synthesized from (2S,3S)-phenylglycidol through a five-step sequence involving a copper-catalyzed alkyne azide cycloaddition (CuAAC) reaction as the final, immobilization step. The functional resin 5 (f = 0.9 mmol g(-1)) has been successfully used as a highly active and enantioselective catalyst in the domino Michael addition/cyclization reaction of in situ activated arylacetic acids (7) with chalcone-type tosylimines (6), leading to dihydropyridinones 8 (17 examples) to afford the products with excellent yields and very high enantioselectivity (mean ee 97.4%). The deactivation of 5 by species present during the catalytic process has been studied, and pivaloyl chloride (required for the activation of the arylacetic acid) has been identified as the main source of deactivation. A simple experimental protocol taking this fact into account has allowed the multiple recycling of 5 with only a marginal decrease in catalytic activity and the implementation of a continuous flow process where the activation of phenylacetic acid (residence time 14.2 min), the asymmetric domino Michael addition/cydization reaction (residence time 7.5 min), and aqueous workup are performed sequentially, delivering the dihydropyridinone product as a clean dichloromethane solution (0.54 mmol catalyst sample; 11 h operation; 8a (4.44 g, >99.9% ee)). The supported catalyst 5 has also been used in a new domino Michael addition/cydization reaction involving saccharin-derived tosylimines 9 as electrophiles, leading to 8,9-dihydro-7H-benzo[4,5]isothiazolo [2,3-[a]pyridin-7-one 5,5-dioxides 10 (8 examples) in high isolated yields and diastereoselectivities and excellent enantioselectivities (mean ee 98%). A single sample of 5 (0.5 g, 0.45 mmol) has been used for the sequential preparation in batch of a library of 7 different derivatives 10 at the gram scale (ca. 10 g, accumulated TON = 51), the whole process being performed without any column chromatographic purification. The increased diastereoselectivity recorded with 5 in reactions involving sterically congested arylacetic acids (with respect to homogeneous BTM) has been rationalized through the occurrence of steric interactions between the sulfonylimine and the linker plus support catalyst fragments leading to additional destabilization of the transition state leading to the minor, cis diastereomer of products 8/10.