1
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Zheng JY, Wang F, Zhang Y, Zheng Z, Wu JH, Ren X, Su Z, Chen W, Wang T. Novel Stereo-Induction Pattern in Pudovik Addition/Phospha-Brook Rearrangement Towards Chiral Trisubstituted Allenes. Angew Chem Int Ed Engl 2024; 63:e202403707. [PMID: 38520267 DOI: 10.1002/anie.202403707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 03/25/2024]
Abstract
Despite the significance of chiral allene skeletons in catalysis, organic synthesis and medicinal chemistry et al., there is a scarcity of reports on axially chiral allenyl phosphorus compounds. Here, we disclosed an efficient and straightforward cascade reaction between ethynyl ketones and phosphine oxides, resulting in a broad array of trisubstituted allenes incorporating a phosphorus moiety in high yields with excellent stereoselectivities facilitated by peptide-mimic phosphonium salt (PPS) catalysis, Additionally, comprehensive series of mechanistic experiments have been conducted to elucidate that this cascade reaction proceeds via an asymmetric Pudovik addition reaction followed by a subsequent phospha-Brook rearrangement that occurs concomitantly with kinetic resolution, representing a stereospecific rearrangement and protonation process facilitating central-to-axial chirality transfer in a cascade manner. We anticipate that our research will pave the way for a promising exploration of novel stereo-induction pattern in the Pudovik addition/phospha-Brook rearrangement cascade reaction.
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Affiliation(s)
- Jia-Yan Zheng
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Fan Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Yan Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Zheng Zheng
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology and Jinjiang Out-patient Section, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jia-Hong Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Xiaoyu Ren
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Wenchuan Chen
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Med-X Center for Materials, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Department of Prosthodontics, West China Hospital of Stomatology and Jinjiang Out-patient Section, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
- Beijing National Laboratory for Molecular Sciences, Beijing, 100190, P. R. China
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2
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Gayen P, Sar S, Ghorai P. Stereodivergent Synthesis of Spiroaminals via Chiral Bifunctional Hydrogen Bonding Organocatalysis. Angew Chem Int Ed Engl 2024; 63:e202404106. [PMID: 38563755 DOI: 10.1002/anie.202404106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/04/2024]
Abstract
Spiroaminals represent novel structural motifs prevalent in diverse natural products and biologically active molecules. Achieving their enantioselective synthesis is a highly desirable and challenging task in synthetic endeavors due to their intricate molecular frameworks. Herein, we accomplished the first stereodivergent construction of spiroaminals using chiral bifunctional organocatalyzed intramolecular 1,2-addition followed by an oxa-Michael addition cascade in a high atom and step economical pathway. A proper modulation of the cinchona-derived squaramide catalysts efficiently provided access to all the possible stereoisomers with high yield, diastereoselectivity, and excellent enantioselectivity while displaying a broad substrate tolerance. Additionally, we validated the scalability of the reaction and demonstrated the synthesis of variable spiroaminal scaffolds, confirming the viability of our protocol.
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Affiliation(s)
- Prasenjit Gayen
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal By-pass Road, Bhauri, Bhopal, 462066, India
| | - Suman Sar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal By-pass Road, Bhauri, Bhopal, 462066, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal By-pass Road, Bhauri, Bhopal, 462066, India
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3
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Zhang X, Song X, Ni Q. Organocatalytic regio- and enantioselective C1-arylation of β,γ-alkynyl-α-imino esters with pyrrolo[2,1- a]isoquinolines. Chem Commun (Camb) 2024; 60:831-834. [PMID: 38131183 DOI: 10.1039/d3cc04946a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
We herein report regio- and enantioselective arylation of β,γ-alkynyl-α-imino esters with pyrroloisoquinolines. Using chiral phosphoric acid catalysts, a wide range of novel axially chiral tetrasubstituted α-amino allenoates were accessed in good yields with excellent enantioselectivities. Notably, this transformation occurred preferentially at the sterically more hindered C1-position of pyrroloisoquinolines. The potential scalability and late-stage functionalization demonstrated the utility of the current protocol.
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Affiliation(s)
- Xuan Zhang
- College of Chemistry and Materials Science, Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.
| | - Xiaoxiao Song
- College of Chemistry and Materials Science, Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.
| | - Qijian Ni
- College of Chemistry and Materials Science, Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.
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4
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Zhang H, Wen W, Lu ZX, Wu ZL, Cai T, Guo QX. Core Structure-Oriented Asymmetric α-Allenylic Alkylation of Amino Acid Esters Enabled by Chiral Aldehyde/Palladium Catalysis. Org Lett 2024; 26:153-159. [PMID: 38133484 DOI: 10.1021/acs.orglett.3c03762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Aiming at the reported chiral synthons leading to manzacidins A and D, here we report a highly efficient catalytic asymmetric α-allenylic alkylation reaction of NH2-unprotected amino acid esters that is promoted by combined chiral aldehyde/palladium catalysis. Fifty examples of unnatural α,α-disubstituted amino acid esters are reported with good-to-excellent yields and stereoselectivities. Based on this methodology, a key intermediate leading to manzacidin C and its other three stereoisomers is prepared accordingly.
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Affiliation(s)
- Hao Zhang
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Wei Wen
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Ze-Xi Lu
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Zhu-Lian Wu
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Tian Cai
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Qi-Xiang Guo
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
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5
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Li W, Wang Y, Ni Z, Li S. Cluster-in-Molecule Local Correlation Method for Dispersion Interactions in Large Systems and Periodic Systems. Acc Chem Res 2023; 56:3462-3474. [PMID: 37991873 DOI: 10.1021/acs.accounts.3c00538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
ConspectusThe noncovalent interactions, including dispersion interactions, control the structures and stabilities of complex chemical systems, including host-guest complexes and the adsorption process of molecules on the solid surfaces. The density functional theory (DFT) with empirical dispersion correction is now the working horse in many areas of applications. Post-Hartree-Fock (post-HF) methods have been well recognized to provide more accurate descriptions in a systematic way. However, traditional post-HF methods are mainly limited to small- or medium-sized systems, and their applications to periodic condensed phase systems are still very limited due to their expensive computational costs.To extend post-HF calculations to large molecules, the cluster-in-molecule (CIM) local correlation approach has been established, allowing highly accurate electron correlation calculations that are routinely available for very large systems. In the CIM approach, the electron correlation energy of a large molecule could be obtained from electron correlation calculations on a series of clusters, each of which contains a subset of occupied and virtual localized molecular orbitals. The CIM method could be massively and efficiently parallelized on general computer clusters. The CIM method has been implemented at various electron correlation levels, including second-order Mo̷ller-Plesset perturbation theory (MP2), coupled cluster singles and doubles (CCSD), CCSD with perturbative triples correction [CCSD(T)], etc. The CIM-MP2 energy gradient algorithm was developed and applied to the geometry optimizations of large systems. The CIM method has also been extended to condensed-phase systems under periodic boundary conditions (PBC-CIM). For periodic systems, the correlation energy per unit cell could be evaluated with correlation energy contributions from a series of clusters that are built with localized Wannier functions.CIM-based electron correlation calculations have been employed to investigate a number of chemical problems in which the dispersion interaction is important. CIM-based post-HF methods including CIM domain-based local pair natural orbital (DLPNO) CCSD(T) are applied to compute the relative or binding energies of biological systems or supramolecular complexes, the reaction barrier in a relatively complex chemical reaction. The CIM-MP2 method is used to obtain the optimized geometry of large systems. CIM-based post-HF calculations have also been used to compute the cohesive energies of molecular crystals and adsorption energies of molecules on the solid surfaces. The CIM and its PBC variant are expected to become a powerful theoretical tool for accurate calculations of the energies and structures for a broad range of large systems and condensed-phase systems with significant dispersion interactions.
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Affiliation(s)
- Wei Li
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, New Cornerstone Science Laboratory, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Yuqi Wang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, New Cornerstone Science Laboratory, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Zhigang Ni
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Shuhua Li
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, New Cornerstone Science Laboratory, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
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6
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Tang Y, Shi W, Du J, Ren Y, Xiao Y, Guo H. Diastereoselective Synthesis of Allenes through Phosphine-Catalyzed Cascade Isomerization/Annulation. Org Lett 2023. [PMID: 38019529 DOI: 10.1021/acs.orglett.3c03283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Phosphine-catalyzed cascade isomerization/annulation has been developed to realize a diastereoselective synthesis of allenes installed on the hexahydropentalene skeleton, which contains five chiral centers (and one axial chirality). This reaction tolerated a broad range of allenoates and enynes. The allene products were transformed to various halogen-substituted fused-ring compounds.
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Affiliation(s)
- Yi Tang
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
| | - Wangyu Shi
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
| | - Juan Du
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
| | - Yue Ren
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
| | - Yumei Xiao
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, P. R. China
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7
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Liu LX, Huang WJ, Yu CB, Zhou YG. Palladium-catalyzed stereoselective construction of chiral allenes bearing nonadjacent axial and two central chirality. Org Biomol Chem 2023; 21:8516-8520. [PMID: 37853833 DOI: 10.1039/d3ob01315d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
It is challenging to enantioselectively construct molecules bearing multiple nonadjacent stereocenters, in contrast to those bearing a single stereocenter or adjacent stereocenters. Herein, we report an enantio- and diastereoselective synthesis of substituted chiral allenes with nonadjacent axial and two central chiral centers through a combination of retro-oxa-Michael addition and palladium-catalyzed asymmetric allenylic alkylation. This methodology exhibits good functional-group compatibility, and the corresponding allenylic alkylated compounds, including flavonoid frameworks, are obtained with good yields and diastereoselectivities and excellent enantioselectivities (all >95% ee). Furthermore, the scalability of the current synthetic protocol was proven by performing a gram-scale reaction.
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Affiliation(s)
- Li-Xia Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wen-Jun Huang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Chang-Bin Yu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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8
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Wu J, Jia P, Kuniyil R, Liu P, Tang W. Dynamic Kinetic Stereoselective Glycosylation via Rh II and Chiral Phosphoric Acid-Cocatalyzed Carbenoid Insertion to the Anomeric OH Bond for the Synthesis of Glycoconjugates. Angew Chem Int Ed Engl 2023; 62:e202307144. [PMID: 37532672 PMCID: PMC10530496 DOI: 10.1002/anie.202307144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/04/2023]
Abstract
Chemical synthesis of glycoconjugates is essential for studying the biological functions of carbohydrates. We herein report an efficient approach for the stereoselective synthesis of challenging α-linked glycoconjugates via a RhII /chiral phosphoric acid (CPA)-cocatalyzed dynamic kinetic anomeric O-alkylation of sugar-derived lactols via carbenoid insertion to the anomeric OH bond. Notably, we observed excellent anomeric selectivity, excellent diastereoselectivity, broad substrate scope, and high efficiency for this glycosylation reaction by exploring various parameters of the cocatalytic system. DFT calculations suggested that the anomeric selectivity was mainly determined by steric interactions between the C2-carbon of the carbohydrate and the phenyl group of the metal carbenoid, while π/π interactions with the C2-OBn substituent on the carbohydrate substrate play a significant role for diastereoselectivity at the newly generated stereogenic center.
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Affiliation(s)
- Jicheng Wu
- Lachman Institute for Pharmaceutical Development, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, United States
| | - Peijing Jia
- Lachman Institute for Pharmaceutical Development, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, United States
| | - Rositha Kuniyil
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, United States
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA 15261, United States
| | - Weiping Tang
- Lachman Institute for Pharmaceutical Development, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, United States
- Department of Chemistry, 1101 University Ave, University of Wisconsin-Madison, Madison, WI 53706, United States
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9
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Wang Y, Zhu X, Pan D, Jing J, Wang F, Mi R, Huang G, Li X. Rhodium-catalyzed enantioselective and diastereodivergent access to diaxially chiral heterocycles. Nat Commun 2023; 14:4661. [PMID: 37537163 PMCID: PMC10400608 DOI: 10.1038/s41467-023-39968-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 07/03/2023] [Indexed: 08/05/2023] Open
Abstract
N-N axially chiral biaryls represent a rarely explored class of atropisomers. Reported herein is construction of diverse classes of diaxially chiral biaryls containing N-N and C-N/C-C diaxes in distal positions in excellent enantioselectivity and diastereoselectivity. The N-N chiral axis in the products provides a handle toward solvent-driven diastereodivergence, as has been realized in the coupling of a large scope of benzamides and sterically hindered alkynes, affording diaxes in complementary diastereoselectivity. The diastereodivergence has been elucidated by computational studies which revealed that the hexafluoroisopropanol (HFIP) solvent molecule participated in an unusual manner as a solvent as well as a ligand and switched the sequence of two competing elementary steps, resulting in switch of the stereoselectivity of the alkyne insertion and inversion of the configuration of the C-C axis. Further cleavage of the N-directing group in the diaxial chiral products transforms the diastereodivergence to enantiodivergence.
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Affiliation(s)
- Yishou Wang
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University, 266237, Qingdao, China
| | - Xiaohan Zhu
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710062, Xi'an, China
| | - Deng Pan
- Department of Chemistry, School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, 300072, Tianjin, China
| | - Jierui Jing
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710062, Xi'an, China
| | - Fen Wang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710062, Xi'an, China.
| | - Ruijie Mi
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University, 266237, Qingdao, China
| | - Genping Huang
- Department of Chemistry, School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, 300072, Tianjin, China.
| | - Xingwei Li
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University, 266237, Qingdao, China.
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710062, Xi'an, China.
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10
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Kshatriya R. Recent Advancement in H 8-BINOL Catalyzed Asymmetric Methodologies. ACS OMEGA 2023; 8:17381-17406. [PMID: 37251114 PMCID: PMC10210047 DOI: 10.1021/acsomega.2c05535] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 12/14/2022] [Indexed: 05/31/2023]
Abstract
H8-BINOL, a partially reduced form of BINOL, is widely employed in a broad array of organocatalyzed asymmetric methodologies. Over the last 25 years, asymmetric organocatalysis has witnessed an incredible improvement, and an advancement still continues to get a single enantio-enriched product. The broad-spectrum applications of H8-BINOL organocatalyst in C-C bond formation, C-heteroatom bond construction, name reactions, pericyclic reactions, and one pot and multicomponent reaction are attracting the attention of researchers. A diversified unique H8-BINOL-based catalyst has been synthesized and screened for catalytic activity. In this Review we frame out the H8-BINOL catalyzed novel discoveries from the last two decades.
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Affiliation(s)
- Rajpratap Kshatriya
- School
of Chemical Sciences, UM-DAE Centre for
Excellence in Basic Sciences, University of Mumbai, Kalina, Santacruz (E), Mumbai, Maharashtra 400098,India
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11
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Han J, Liu S, Wang H, Wang J, Qian H, Li Z, Ma S, Zhang J. Pd/Xu-Phos-catalyzed asymmetric elimination of fully substituted enol triflates into axially chiral trisubstituted allenes. SCIENCE ADVANCES 2023; 9:eadg1002. [PMID: 36930705 PMCID: PMC10022902 DOI: 10.1126/sciadv.adg1002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
The β-H elimination, as one of the most important elementary reactions in transition metal chemistry, is a key step in quenching the carbon-palladium bond for the Heck reaction. However, the β-H elimination of the alkenyl palladium species leading to allene is an energetically unfavored process, and therefore, it has been a long-standing challenge in control of this process via enantioselective manner. We developed a concise and efficient methodology to construct trisubstituted chiral allenes from stereodefined fully substituted enol triflates by the enantioselective β-H elimination of the alkenyl palladium species under mild conditions. The identified Xu-Phos play a crucial role in the chemoselectivity and enantioselectivity. Multiple linear regression analysis shows the important steric effect on enantioselectivity. DFT computation results allow us to propose an intramolecular base (-OAc)-assisted deprotonation mechanism for this progress. Distortion-interaction and energy decomposition analysis indicate that the difference in electrostatic energy (Eelec) of the two intramolecular base-assisted deprotonation transition states dominates the stereoselectivity.
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Affiliation(s)
- Jie Han
- Department of Chemistry, Fudan University, Shanghai 200438, China
- Zhuhai Fudan Innovation Institute, Zhuhai 519000, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, China
| | - Siyuan Liu
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Huanan Wang
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Jie Wang
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Hui Qian
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Zhiming Li
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Shengming Ma
- Department of Chemistry, Fudan University, Shanghai 200438, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, Shanghai, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, Shanghai 200438, China
- Zhuhai Fudan Innovation Institute, Zhuhai 519000, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, China
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12
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Hu L, Gao H, Hu Y, Wu YB, Lv X, Lu G. Origins of Regioselectivity in CuH-Catalyzed Hydrofunctionalization of Alkenes. J Org Chem 2023. [PMID: 36790843 DOI: 10.1021/acs.joc.2c02296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Factors controlling the regioselectivity in alkene hydrocupration were computationally investigated using energy decomposition analysis. The results demonstrate that the Markovnikov-selective hydrocupration with electronically activated mono-substituted olefins is mostly affected by the destabilizing Pauli repulsion, which is due to the electron delocalization effect. The anti-Markovnikov-selective hydrocupration with 1,1-dialkyl-substituted terminal olefins is dominated by the repulsive electrostatic interactions, which is because of the unequal π electron distribution caused by the induction effect of alkyl substituents.
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Affiliation(s)
- Lingfei Hu
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong 250100, China
| | - Han Gao
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong 250100, China
| | - Yanlei Hu
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong 250100, China
| | - Yan-Bo Wu
- Key Lab for Materials of Energy Conversion and Storage of Shanxi Province and Key Lab of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Xiangying Lv
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong 250100, China
| | - Gang Lu
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong 250100, China
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13
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Zhang Y, Wu J, Ning L, Chen Q, Feng X, Liu X. Enantioselective synthesis of tetrasubstituted allenes via addition/arylation tandem reaction of 2-activated 1,3-enynes. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1443-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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14
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Role of Chiral Skeleton in Chiral Phosphoric Acids Catalyzed Asymmetric Transfer Hydrogenation: A DFT Study. Catalysts 2023. [DOI: 10.3390/catal13010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Chiral phosphoric acids (CPAs) have received considerable attention due to their high activity for enantioselective transformations. However, the role of various chiral skeletons of CPAs in regulating the mechanism and enantioselectivity of asymmetric transfer hydrogenation has remained unclear. Density functional theory (DFT) calculations are performed to elucidate the role of chiral skeletons on the acidity, mechanism, enantioselectivity, and kinetic stabilities of transition states (TSs) in Asymmetric Transfer Hydrogen (ATH) reaction catalyzed by five CPAs. We found that the acidity of CPAs is strongly dependent on the chiral skeleton. The origin of enantioselectivity of ATH reaction arises from the differential noncovalent interactions between TSs and CPAs. Moreover, the shape and size of the catalyst pocket depending on chiral skeletons play key roles in the stability of TSs and the enantioselectivity of ATH. This study might facilitate to design and computationally screening of CPAs and guide the strategic choice of CPA skeletons to reduce the experimental workload.
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15
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Li Q, Wang ZL, Xu YH. Copper-catalyzed 1,4-protosilylation and 1,4-protoborylation of enynic orthoesters for synthesis of functionalized 2,3-allenoates. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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16
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Xu X, Wang M, Peng L, Guo C. Nickel-Catalyzed Asymmetric Propargylation for the Synthesis of Axially Chiral 1,3-Disubstituted Allenes. J Am Chem Soc 2022; 144:21022-21029. [DOI: 10.1021/jacs.2c10863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xianghong Xu
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Mingxu Wang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Lingzi Peng
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Chang Guo
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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17
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Melnyk N, Iribarren I, Mates‐Torres E, Trujillo C. Theoretical Perspectives in Organocatalysis. Chemistry 2022; 28:e202201570. [PMID: 35792702 PMCID: PMC9804221 DOI: 10.1002/chem.202201570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 01/05/2023]
Abstract
It is clear that the field of organocatalysis is continuously expanding during the last decades. With increasing computational capacity and new techniques, computational methods have provided a more economic approach to explore different chemical systems. This review offers a broad yet concise overview of current state-of-the-art studies that have employed novel strategies for catalyst design. The evolution of the all different theoretical approaches most commonly used within organocatalysis is discussed, from the traditional approach, manual-driven, to the most recent one, machine-driven.
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Affiliation(s)
- Nika Melnyk
- School of ChemistryTrinity College DublinCollege GreenDublin2Ireland
| | - Iñigo Iribarren
- School of ChemistryTrinity College DublinCollege GreenDublin2Ireland
| | - Eric Mates‐Torres
- School of ChemistryTrinity College DublinCollege GreenDublin2Ireland
| | - Cristina Trujillo
- School of ChemistryTrinity College DublinCollege GreenDublin2Ireland
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18
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Li J, Chen H, Zhong R, Zhu L, Liu S, Ding H, Yang J, Wang L, Lan Y, Wang Z. Perfluoroarene Interaction-Controlled Chiral Phosphoric Acid-Catalyzed Enantioselective Michael Addition of Difluoroenoxysilanes to Azadienes: a Combination of Experimental and Theoretical Studies. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jinshan Li
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Haohua Chen
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Rong Zhong
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Lei Zhu
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Saimei Liu
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310058, P. R. China
| | - Jianguo Yang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Zhiming Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
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19
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Santos IA, de Castro PP, dos Santos HF, Amarante GW. Mechanism and Origin of Enantioselectivity in Bifunctional Squaramide‐Catalyzed α‐Thiolation of Azlactones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | | | - Giovanni Wilson Amarante
- Federal University of Juiz de Fora Department of Chemistry Louren�o Kelmer, s/nS�o Pedro 36036-900 Juiz de Fora BRAZIL
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20
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Li Q, Wang ZL, Lu HX, Xu YH. Copper-Catalyzed Enantioselective 1,4-Protosilylation of Alkynyl-substituted Enones to Synthesize the Highly Diastereomeric Chiral Homoallenylsilanes. Org Lett 2022; 24:2832-2836. [PMID: 35394282 DOI: 10.1021/acs.orglett.2c00739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A copper-catalyzed 1,4-protosilylation of α-alkynyl-enones to form the functionalized chiral homoallenylsilanes was developed. In the presence of a chiral monopyridine oxazoline ligand, a variety of trisubstituted allene derivatives bearing a contiguous stereogenic center and axis were prepared in good yields with excellent enantioselectivities and diastereoselectivities.
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Affiliation(s)
- Qi Li
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Zi-Lu Wang
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Huan-Xuan Lu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
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21
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Wang X, Chen X, Lin W, Li P, Li W. Recent Advances in Organocatalytic Enantioselective Synthesis of Axially Chiral Allenes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200085] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xing Wang
- Department of Medicinal Chemistry School of Pharmacy Qingdao University 308 Ningxia Road Qingdao Shandong 266021 People's Republic of China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 People's Republic of China
| | - Wei Lin
- Department of Medicinal Chemistry School of Pharmacy Qingdao University 308 Ningxia Road Qingdao Shandong 266021 People's Republic of China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis College of Science Southern University of Science and Technology 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 People's Republic of China
| | - Wenjun Li
- Department of Medicinal Chemistry School of Pharmacy Qingdao University 308 Ningxia Road Qingdao Shandong 266021 People's Republic of China
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22
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Corpas J, Mauleón P, Gómez Arrayás R, Carretero JC. E/Z
Photoisomerization of Olefins as an Emergent Strategy for the Control of Stereodivergence in Catalysis. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200199] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Javier Corpas
- Department of Organic Chemistry Institute for Advanced Research in Chemical Sciences (IAdChem) Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Universidad Autónoma de Madrid Cantoblanco 28049 Madrid Spain
| | - Pablo Mauleón
- Department of Organic Chemistry Institute for Advanced Research in Chemical Sciences (IAdChem) Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Universidad Autónoma de Madrid Cantoblanco 28049 Madrid Spain
| | - Ramón Gómez Arrayás
- Department of Organic Chemistry Institute for Advanced Research in Chemical Sciences (IAdChem) Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Universidad Autónoma de Madrid Cantoblanco 28049 Madrid Spain
| | - Juan C. Carretero
- Department of Organic Chemistry Institute for Advanced Research in Chemical Sciences (IAdChem) Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Universidad Autónoma de Madrid Cantoblanco 28049 Madrid Spain
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23
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Tukhtaev HB, Bezzubov SI, Tarasenko EA, Melnikov MY, Ivanov KL, Budynina EM. Time‐Dependent Diastereodivergent Michael Addition Enabled by Phosphazenes Acting as Catalysts and Reactants. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hamidulla B. Tukhtaev
- Lomonosov Moscow State University Department of Chemistry Leninskie gory 1–3 Moscow 119991 Russia
| | - Stanislav I. Bezzubov
- Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Leninskiy pr. 31 Moscow 119991 Russia
| | - Elena A. Tarasenko
- Lomonosov Moscow State University Department of Chemistry Leninskie gory 1–3 Moscow 119991 Russia
| | - Mikhail Ya. Melnikov
- Lomonosov Moscow State University Department of Chemistry Leninskie gory 1–3 Moscow 119991 Russia
| | - Konstantin L. Ivanov
- Lomonosov Moscow State University Department of Chemistry Leninskie gory 1–3 Moscow 119991 Russia
| | - Ekaterina M. Budynina
- Lomonosov Moscow State University Department of Chemistry Leninskie gory 1–3 Moscow 119991 Russia
- Lebedev Physical Institute Russian Academy of Sciences Leninskiy pr. 53 Moscow 119991 Russia
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24
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Wang J, He F, Yang X. Asymmetric construction of acyclic quaternary stereocenters via direct enantioselective additions of α-alkynyl ketones to allenamides. Nat Commun 2021; 12:6700. [PMID: 34795297 PMCID: PMC8602376 DOI: 10.1038/s41467-021-27028-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 10/26/2021] [Indexed: 12/11/2022] Open
Abstract
Acyclic quaternary stereocenters are widely present in a series of biologically active natural products and pharmaceuticals. However, development of highly efficient asymmetric catalytic methods for the construction of these privileged motifs represents a longstanding challenge in organic synthesis. Herein, an efficient chiral phosphoric acid catalyzed direct asymmetric addition of α-alkynyl acyclic ketones with allenamides has been developed, furnishing the acyclic all-carbon quaternary stereocenters with excellent regioselectivities and high enantioselectivities. Extensive and detailed experimental mechanistic studies were performed to investigate the mechanism of this reaction. Despite a novel covalent allyl phosphate intermediate was found in these reactions, further studies indicated that a SN2-type mechanism with the ketone nucleophiles is not very possible. Instead, a more plausible mechanism involving the elimination of the allyl phosphate to give the α,β-unsaturated iminium intermediate, which underwent the asymmetric conjugate addition with the enol form of ketone nucleophiles under chiral anion catalysis, was proposed. In virtue of the fruitful functional groups bearing in the chiral products, the diverse derivatizations of the chiral products provided access to a wide array of chiral scaffolds with quaternary stereocenters.
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Affiliation(s)
- Jiawen Wang
- School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China
| | - Faqian He
- School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China.
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25
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De Castro PP, Batista GMF, Amarante GW, Dos Santos HF. Origin of Enantioselectivity in Chiral Phosphoric-Acid-Catalyzed Azlactone Dynamic Kinetic Resolution. J Org Chem 2021; 86:13169-13174. [PMID: 34464119 DOI: 10.1021/acs.joc.1c01882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Theoretical calculations, associated with control experiments, were carried out to gain insights into the mechanism and origin of enantioselectivity in the phosphoric-acid-catalyzed dynamic kinetic resolution of azlactones. The results revealed a Münchnone intermediate as the key species involved in the isomerization of azlactone rings. The developed model was successfully employed in the comprehension and prediction of enantioselectivity under diverse of reaction conditions, including alcoholysis and aminolysis protocols.
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Affiliation(s)
- Pedro P De Castro
- Chemistry Department, Federal University of Juiz de Fora, Rua José Lourenço Kelmer, Campus Universitário São Pedro, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Gabriel M F Batista
- Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO), and Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Giovanni W Amarante
- Chemistry Department, Federal University of Juiz de Fora, Rua José Lourenço Kelmer, Campus Universitário São Pedro, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - Hélio F Dos Santos
- Chemistry Department, Federal University of Juiz de Fora, Rua José Lourenço Kelmer, Campus Universitário São Pedro, Juiz de Fora, Minas Gerais 36036-900, Brazil
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26
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Woldegiorgis AG, Han Z, Lin X. Organocatalytic Asymmetric Dearomatization Reaction for the Synthesis of Axial Chiral Allene-Derived Naphthalenones Bearing Quaternary Stereocenters. Org Lett 2021; 23:6606-6611. [PMID: 34387497 DOI: 10.1021/acs.orglett.1c01849] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The highly regio-, diastereo-, and enantioselective dearomatization reaction of 1-substituted 2-naphthols and β,γ-alkynyl-α-imino esters with complete atom economy is disclosed via chiral phosphoric acid catalysis. This protocol provides facile and efficient access to asymmetric construction of a broad range of axially chiral allene-derived naphthalenones bearing quaternary stereocenters in good yields with high diastereoselectivities and enantioselectivities.
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Affiliation(s)
| | - Zhao Han
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xufeng Lin
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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27
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Tang M, Gu H, He S, Rajkumar S, Yang X. Asymmetric Enamide–Imine Tautomerism in the Kinetic Resolution of Tertiary Alcohols. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mengyao Tang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
- University of Chinese Academy of Sciences Beijing 100049 China
- Shanghai Institute of Organic Chemistry Shanghai 200032 China
| | - Huanchao Gu
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
| | - Shunlong He
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
| | - Subramani Rajkumar
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
| | - Xiaoyu Yang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
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28
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Zhang J, Huo X, Xiao J, Zhao L, Ma S, Zhang W. Enantio- and Diastereodivergent Construction of 1,3-Nonadjacent Stereocenters Bearing Axial and Central Chirality through Synergistic Pd/Cu Catalysis. J Am Chem Soc 2021; 143:12622-12632. [PMID: 34351136 DOI: 10.1021/jacs.1c05087] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In contrast to the widely explored methods for the asymmetric synthesis of molecules bearing a single stereocenter or adjacent stereocenters, the concurrent construction of 1,3-stereogenic centers in an enantio- and diastereoselective manner remains a challenge, especially in acyclic systems. Herein, we report an enantio- and diastereodivergent construction of 1,3-nonadjacent stereocenters bearing allenyl axial and central chirality through synergistic Pd/Cu-catalyzed dynamic kinetic asymmetric allenylation with racemic allenylic esters. The protocol is suitable for a wide range of substrates including the challenging allenylic esters with less sterically bulky substituents and provided chiral allenylic products bearing 1,3-nonadjacent stereocenters with high levels of enantio- and diastereoselectivities (up to >20:1 dr and >99% ee). Furthermore, several representative transformations involving axial-to-central chirality transfer were conducted, affording useful structural motifs containing nonadjacent stereocenters in a diastereodivergent manner.
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Affiliation(s)
- Jiacheng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiaohong Huo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Junzhe Xiao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Ling Zhao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China.,Research Centre for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai 200433, China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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29
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Varlet T, Matišić M, Van Elslande E, Neuville L, Gandon V, Masson G. Enantioselective and Diastereodivergent Synthesis of Spiroindolenines via Chiral Phosphoric Acid-Catalyzed Cycloaddition. J Am Chem Soc 2021; 143:11611-11619. [PMID: 34296854 DOI: 10.1021/jacs.1c04648] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A diastereodivergent and enantioselective synthesis of chiral spirocyclohexyl-indolenines with four contiguous stereogenic centers is achieved by a chiral phosphoric acid-catalyzed cycloaddition of 2-susbtituted 3-indolylmethanols with 1,3-dienecarbamates. Modular access to two different diastereoisomers with high enantioselectivities was obtained by careful choice of reaction conditions. Their functional group manipulation provides an efficient access to enantioenriched spirocyclohexyl-indolines and -oxindoles. The origins of this stereocontrol have been identified using DFT calculations, which reveal an unexpected mechanism compared to our previous work dealing with enecarbamates.
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Affiliation(s)
- Thomas Varlet
- Institut de Chimie des Substances Naturelles, Université Paris-Saclay, ICSN-CNRS UPR, 2301 Gif sur Yvette, France
| | - Mateja Matišić
- Institut de Chimie des Substances Naturelles, Université Paris-Saclay, ICSN-CNRS UPR, 2301 Gif sur Yvette, France
| | - Elsa Van Elslande
- Institut de Chimie des Substances Naturelles, Université Paris-Saclay, ICSN-CNRS UPR, 2301 Gif sur Yvette, France
| | - Luc Neuville
- Institut de Chimie des Substances Naturelles, Université Paris-Saclay, ICSN-CNRS UPR, 2301 Gif sur Yvette, France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) and Laboratoire de Chimie Moléculaire (LCM), 91405 Orsay, France.,Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, École Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau Cedex, France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles, Université Paris-Saclay, ICSN-CNRS UPR, 2301 Gif sur Yvette, France
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30
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Tang M, Gu H, He S, Rajkumar S, Yang X. Asymmetric Enamide-Imine Tautomerism in the Kinetic Resolution of Tertiary Alcohols. Angew Chem Int Ed Engl 2021; 60:21334-21339. [PMID: 34312956 DOI: 10.1002/anie.202106151] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Indexed: 12/23/2022]
Abstract
An efficient protocol for kinetic resolution of tertiary alcohols has been developed through an unprecedented asymmetric enamide-imine tautomerism process enabled by chiral phosphoric acid catalysis. A broad range of racemic 2-arylsulfonamido tertiary allyl alcohols could be kinetically resolved with excellent kinetic resolution performances (with s-factor up to >200). This method is particularly effective for a series of 1,1-dialkyl substituted allyl alcohols, which produced chiral tertiary alcohols that would be difficult to access via other asymmetric methods. Facile and versatile transformations of the chiral α-hydroxy imine and enamide products, especially the efficient stereodivergent synthesis of all four stereoisomers of β-amino tertiary alcohols using one enantiomer of the catalyst, demonstrated the value of this kinetic resolution method.
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Affiliation(s)
- Mengyao Tang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,Shanghai Institute of Organic Chemistry, Shanghai, 200032, China
| | - Huanchao Gu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Shunlong He
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Subramani Rajkumar
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
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31
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Sharma A, Nagaraju K, Rao GA, Gurubrahamam R, Chen K. Asymmetric Organocatalysis of Activated Alkynes and Enynes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Akashdeep Sharma
- Department of Chemistry Indian Institute of Technology Jammu Jagati Jammu (J&K) 181221 India
| | - Koppanathi Nagaraju
- Department of Chemistry National Taiwan Normal University Taipei 11677 Taiwan
| | - Gunda Ananda Rao
- Department of Chemistry National Taiwan Normal University Taipei 11677 Taiwan
| | - Ramani Gurubrahamam
- Department of Chemistry Indian Institute of Technology Jammu Jagati Jammu (J&K) 181221 India
| | - Kwunmin Chen
- Department of Chemistry National Taiwan Normal University Taipei 11677 Taiwan
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32
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Xie Y, Yang X, Xu J, Chai H, Liu H, Zhang J, Song J, Gao Y, Jin Z, Chi YR. Access to Allene‐Containing Molecules via Enantioselective Reactions of Azolium Cumulenolate Intermediates. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yongtao Xie
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Xing Yang
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Jun Xu
- College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang 550025 China
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Huifang Chai
- College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang 550025 China
| | - Hongxia Liu
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
| | - Junmin Zhang
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
| | - Jun Song
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
| | - Yuan Gao
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 China
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
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Xie Y, Yang X, Xu J, Chai H, Liu H, Zhang J, Song J, Gao Y, Jin Z, Chi YR. Access to Allene-Containing Molecules via Enantioselective Reactions of Azolium Cumulenolate Intermediates. Angew Chem Int Ed Engl 2021; 60:14817-14823. [PMID: 33834597 DOI: 10.1002/anie.202102177] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/29/2021] [Indexed: 12/17/2022]
Abstract
Azolium cumulenolates are a special type of intermediates in N-heterocyclic carbene catalysis. They contain elongated linear structures with three contiguous C=C bonds and sterically unhindered α-carbon atoms. These structural features make it difficult to develop enantioselective reactions for these intermediates. Here we disclose the first carbene-catalyzed highly enantioselective addition reactions of azolium cumulenolates. The reaction starts with alkynals as the precursors for azolium cumulenolate intermediates that undergo enantioselective addition to activated ketones. From the same set of substrates, both allene and spirooxindole products can be obtained with high yields and excellent enantioselectivities. The allene moieties in our optically enriched products carry rich reactivities and can be transformed to diverse molecules. The spirooxindole scaffolds in our products are important structural motifs in natural products and medicines.
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Affiliation(s)
- Yongtao Xie
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
- Division of Chemistry & Mathematical Science, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Xing Yang
- Division of Chemistry & Mathematical Science, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Jun Xu
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
- Division of Chemistry & Mathematical Science, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Huifang Chai
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Hongxia Liu
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Junmin Zhang
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jun Song
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yuan Gao
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University Huaxi District, Guiyang, 550025, China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University Huaxi District, Guiyang, 550025, China
- Division of Chemistry & Mathematical Science, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
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Chen Y, Ye X, He F, Yang X. Asymmetric synthesis of oxazolines bearing α-stereocenters through radical addition–enantioselective protonation enabled by cooperative catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo00970b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
An efficient radical conjugate addition/enantioselective protonation process was developed for the asymmetric synthesis of chiral oxazolines bearing an α-stereocenter through cooperative photoredox catalysis and asymmetric organocatalysis.
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Affiliation(s)
- Yunrong Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xueqian Ye
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Faqian He
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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