1
|
Zhang G, Wodrich MD, Cramer N. Catalytic enantioselective reductive Eschenmoser-Claisen rearrangements. Science 2024; 383:395-401. [PMID: 38271525 DOI: 10.1126/science.adl3369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024]
Abstract
An important challenge in enantioselective catalysis is developing strategies for the precise synthesis of neighboring congested all-carbon quaternary stereocenters. The well-defined transition states of [3,3]-sigmatropic rearrangements and their underlying stereospecificity render them powerful tools for the synthesis of such arrays. However, this type of pericyclic reaction remains notoriously difficult to catalyze, especially in an enantioselective fashion. Herein, we describe an enantioselective reductive Eschenmoser-Claisen rearrangement catalyzed by chiral 1,3,2-diazaphospholene-hydrides. This developed transformation enables full control of the two newly formed acyclic stereogenic centers, leading to amides with vicinal all-carbon quaternary-tertiary or quaternary-quaternary carbon atoms.
Collapse
Affiliation(s)
- Guoting Zhang
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Matthew D Wodrich
- Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| |
Collapse
|
2
|
Chakraborty N, Mitra AK. The versatility of DABCO as a reagent in organic synthesis: a review. Org Biomol Chem 2023; 21:6830-6880. [PMID: 37605948 DOI: 10.1039/d3ob00921a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
DABCO (1,4-diazabicyclo[2.2.2]octane) has garnered a lot of interest for numerous organic transformations since it is a low-cost, environmentally friendly, reactive, manageable, non-toxic and basic organocatalyst with a high degree of selectivity. Moreover, DABCO functions as a nucleophile as well as a base in a variety of processes for the synthesis of a wide array of molecules, including carbocyclic and heterocyclic compounds. Protection and deprotection of functional groups and the formation of carbon-carbon bonds are also catalyzed by DABCO. The reagent also finds applications in the synthesis of functional groups like isothiocyanate, amide and ester. Application of DABCO in cycloaddition, coupling, aromatic nucleophilic substitution, ring-opening, oxidation and rearrangement reactions is also noteworthy. This is a state of the art review that has encompassed a variety of processes for the synthesis of organic frameworks using DABCO.
Collapse
Affiliation(s)
- Nitisha Chakraborty
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM) Dhanbad, Jharkhand, Pin: 826004, India
| | - Amrit Krishna Mitra
- Department of Chemistry, Government General Degree College, Singur, Singur, Hooghly, West Bengal, Pin: 712409, India.
| |
Collapse
|
3
|
Zhai J, Li S, Fu L, Li C, Sun B, Sang F, Liu H. Structural modification and antibacterial property studies of natural chalcone sanjuanolide. Front Chem 2022; 10:959250. [PMID: 35991609 PMCID: PMC9388722 DOI: 10.3389/fchem.2022.959250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/07/2022] [Indexed: 11/24/2022] Open
Abstract
Clinical infections arise from multidrug-resistant bacteria and pose a serious threat to human and global public health. Moreover, due to very few antibiotics being discovered, there is an urgent need to develop new antibacterial agents to combat antimicrobial resistance challenges. In this study, a series of new chalcone derivatives bearing a 3′-hydroxyisoprenyl moiety were prepared to employ Claisen–Schmidt condensation as a key step by combinatorial chemistry, and overall yields of these novel derivatives are in the range of 28–68% in the two-step reaction. Sanjuanolide and the synthesized derivatives have been investigated for their expected antibacterial activities against Gram-positive bacteria (Staphylococcus aureus CMCC 26003) and Gram-negative bacteria (Escherichia coli CMCC 44102). Among these compounds, only 4c (MIC = 12.5 μg/ml) and 4d (MIC = 25 μg/ml) exhibited antibacterial activity comparable to sanjuanolide (MIC = 12.5 μg/ml, against S. aureus CMCC 26003), and the results of subsequent in vivo experiments on sanjuanolide suggest that sanjuanolide exhibits bacteriostatic and bactericidal effects by altering the cellular structure, disrupting the integrity of cell membranes, and reducing the outer membrane potential.
Collapse
Affiliation(s)
- Jiadai Zhai
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Shucheng Li
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Lin Fu
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Chuang Li
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Bingxia Sun
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Feng Sang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
- *Correspondence: Feng Sang, ; Hongliang Liu,
| | - Hongliang Liu
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
- *Correspondence: Feng Sang, ; Hongliang Liu,
| |
Collapse
|
4
|
Bhamboo P, Bera S, Mondal D. TiCl
4
‐Promoted Asymmetric Aldol Reaction of Oxazolidinones and its Sulphur‐Congeners for Natural Product Synthesis. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Prateek Bhamboo
- School of Chemical Sciences Central University of Gujarat Gandhinagar 382030 Gujarat India
| | - Smritilekha Bera
- School of Chemical Sciences Central University of Gujarat Gandhinagar 382030 Gujarat India
| | - Dhananjoy Mondal
- School of Chemical Sciences Central University of Gujarat Gandhinagar 382030 Gujarat India
| |
Collapse
|
5
|
Jangid DK. DABCO as a Base and an Organocatalyst in Organic Synthesis: A Review. CURRENT GREEN CHEMISTRY 2020. [DOI: 10.2174/2213346107666191227101538] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
One of the organocatalysts 1,4-diazabicyclo[2.2.2]octane (DABCO) is an excellent solid
catalyst in a number of reactions. It is also a good nucleophile and a base in numerous reactions for the
synthesis of heterocycles. DABCO catalyzes many reactions like cycloaddition reactions, coupling reactions,
Baylis-Hillman reaction, Henry reaction, ring opening reactions, etc. One more advanced feature
of these reactions is that they proceed through environmental friendly pathway. DABCO has
more advantages than other organic catalysts because it is an inexpensive, non.toxic base, an ecofriendly
and a highly reactive catalyst for building of organic frameworks, which produce the desired
products in excellent yields with high selectivity. Many catalytic applications of DABCO have been
reported for the synthesis of an organic framework which has been discussed in this review.
Collapse
Affiliation(s)
- Dinesh K. Jangid
- Department of Chemistry, Faculty of Science, University of Rajasthan, JLN Marg, Jaipur, Rajasthan, India
| |
Collapse
|
6
|
Malassis J, Bartlett N, Hands K, Selby MD, Linclau B. Total Synthesis of (-)-Luminacin D. J Org Chem 2016; 81:3818-37. [PMID: 27054953 DOI: 10.1021/acs.joc.6b00489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A second-generation synthesis of (-)-luminacin D based on an early stage introduction of the trisubstituted epoxide group is reported, allowing access to the natural product in an improved yield and a reduced number of steps (5.4%, 17 steps vs 2.6%, 19 steps). A full account of the optimization work is provided, with the reversal of stereoselection in the formation of the C4 alcohol in equally excellent diastereoselectivity as the key improvement.
Collapse
Affiliation(s)
- Julien Malassis
- Chemistry, University of Southampton , Highfield, Southampton SO17 1BJ, U.K
| | - Nathan Bartlett
- Chemistry, University of Southampton , Highfield, Southampton SO17 1BJ, U.K
| | - Kane Hands
- Chemistry, University of Southampton , Highfield, Southampton SO17 1BJ, U.K
| | | | - Bruno Linclau
- Chemistry, University of Southampton , Highfield, Southampton SO17 1BJ, U.K
| |
Collapse
|
7
|
Duan S, Long D, Zhao C, Zhao G, Yuan Z, Xie X, Fang J, She X. Efficient construction of the A/C/D tricyclic skeleton of palhinine A. Org Chem Front 2016. [DOI: 10.1039/c6qo00222f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
An efficient approach for the synthesis of the 9/6/6 tricyclic structure ofLycopodiumalkaloid palhinine A has been accomplished. This protocol can undergo ring constriction to rapidly construct the highly strained nine-membered azonane ring of palhinine A.
Collapse
Affiliation(s)
- Shuangshuang Duan
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Dan Long
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Changgui Zhao
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Gaoyuan Zhao
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Ziyun Yuan
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| |
Collapse
|
8
|
Affiliation(s)
- Jiayun He
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Jesse Ling
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Pauline Chiu
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
| |
Collapse
|
9
|
Bartlett N, Gross L, Péron F, Asby DJ, Selby MD, Tavassoli A, Linclau B. Stereocontrol by quaternary centres: a stereoselective synthesis of (-)-luminacin D. Chemistry 2014; 20:3306-10. [PMID: 24519660 DOI: 10.1002/chem.201304776] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Indexed: 01/28/2023]
Abstract
Very high diastereoselectivity can be achieved by 1,3-chelation-controlled allylation of aldehydes that possess a non-chelating α-ether substituent, even if the α-position is a quaternary centre and/or a spiro-epoxide. This reaction was used as a key step in an enantioselective synthesis of the angiogenesis inhibitor luminacin D.
Collapse
Affiliation(s)
- Nathan Bartlett
- Department of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ (UK)
| | | | | | | | | | | | | |
Collapse
|
10
|
Synthesis and investigation of dihydroxychalcones as calpain and cathepsin inhibitors. Bioorg Chem 2013; 51:24-30. [DOI: 10.1016/j.bioorg.2013.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 09/01/2013] [Accepted: 09/06/2013] [Indexed: 11/19/2022]
|
11
|
Basavaiah D, Reddy BS, Badsara SS. Recent contributions from the Baylis-Hillman reaction to organic chemistry. Chem Rev 2010; 110:5447-674. [PMID: 20735052 DOI: 10.1021/cr900291g] [Citation(s) in RCA: 743] [Impact Index Per Article: 53.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Deevi Basavaiah
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India.
| | | | | |
Collapse
|
12
|
Cho J, Lee YM, Kim D, Kim S. Design and Synthesis of Piperidine-Containing Sphingoid Base Analogues. J Org Chem 2009; 74:3900-4. [DOI: 10.1021/jo900378h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jihee Cho
- College of Pharmacy, Seoul National University, San 56-1, Shilim, Kwanak, Seoul 151−742, Korea
| | - Yun Mi Lee
- College of Pharmacy, Seoul National University, San 56-1, Shilim, Kwanak, Seoul 151−742, Korea
| | - Deukjoon Kim
- College of Pharmacy, Seoul National University, San 56-1, Shilim, Kwanak, Seoul 151−742, Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, San 56-1, Shilim, Kwanak, Seoul 151−742, Korea
| |
Collapse
|
13
|
Ma GN, Jiang JJ, Shi M, Wei Y. Recent extensions of the Morita–Baylis–Hillman reaction. Chem Commun (Camb) 2009:5496-514. [PMID: 19753340 DOI: 10.1039/b909405a] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Guang-Ning Ma
- Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, China
| | | | | | | |
Collapse
|
14
|
Singh V, Batra S. Advances in the Baylis–Hillman reaction-assisted synthesis of cyclic frameworks. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.087] [Citation(s) in RCA: 403] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
15
|
Sá MM, Fernandes L, Ferreira M, Bortoluzzi AJ. Synthesis of allylic thiocyanates and novel 1,3-thiazin-4-ones from 2-(bromomethyl)alkenoates and S-nucleophiles in aqueous medium. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.12.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
16
|
Masson G, Housseman C, Zhu J. The enantioselective Morita-Baylis-Hillman reaction and its aza counterpart. Angew Chem Int Ed Engl 2007; 46:4614-28. [PMID: 17397122 DOI: 10.1002/anie.200604366] [Citation(s) in RCA: 427] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The development of asymmetric Morita-Baylis-Hillman (MBH) reactions has evolved dramatically over the past few years, parallel to the emerging concept of bifunctional organocatalysis. Whereas organocatalysis is starting to compete with metal-based catalysis in several important organic transformations, the MBH reaction belongs to a group of prototypical reactions in which organocatalysts already display superiority over their metal-based counterparts. This Minireview summarizes recent mechanistic insights and advances in the design and synthesis of small organic molecules for enantioselective MBH and aza-MBH reactions.
Collapse
Affiliation(s)
- Géraldine Masson
- Institut de Chimie des Substances Naturelles, CNRS, 91198 Gif-sur-Yvette Cedex, France.
| | | | | |
Collapse
|
17
|
Masson G, Housseman C, Zhu J. Enantioselektive Morita-Baylis-Hillman-Reaktionen und ihre Aza-Varianten. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604366] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
18
|
Oehlrich D, Vidot SM, Davies MW, Clarkson GJ, Shipman M. Total synthesis of (±)-luminacin D. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.03.096] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|