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Gu YT, Chen DD, Wang CB, Cheng Q, Han JR, Tian X, Liu S, Su W. A Mild and General trans-Diboration of Both Terminal and Internal Propargyl Alcohols. Org Lett 2024; 26:10499-10504. [PMID: 39605161 DOI: 10.1021/acs.orglett.4c03841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2024]
Abstract
A practical and efficient trans-diboration of propargyl alcohols was accomplished using sodium hydride (NaH) as a base in N,N-dimethylformamide at room temperature. The mild reaction conditions demonstrate general applicability, facilitating the successful conversion of both terminal and internal propargyl alcohols with diverse structures and functional groups into highly functionalized alkenediboronates [4-borylated 1,2-oxaborol-2(5H)-oles]. The resulting products, which incorporate two boron groups, can be selectively activated and subjected to stepwise transformations, thereby providing an effective platform for synthesizing a wide range of structurally diverse trisubstituted alkenes.
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Affiliation(s)
- Yu-Tong Gu
- College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Di-Di Chen
- College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Cheng-Bin Wang
- College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Qiushi Cheng
- College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050022, China
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Jian-Rong Han
- College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050022, China
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Xia Tian
- College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050022, China
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Shouxin Liu
- Hebei Key Laboratory of Molecular Chemistry for Drug, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Wei Su
- College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050022, China
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang 050022, China
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2
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Tian X, Zhang YK, You YX, Han JR, Cheng QS, Fan SM, Chen DD, Wang TT, Liu S, Su W. LiO tBu-Promoted trans-Stereoselective and β-Regioselective Hydroboration of Propargyl Alcohols. Org Lett 2023; 25:6401-6406. [PMID: 37603790 DOI: 10.1021/acs.orglett.3c02411] [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
A convenient and efficient trans-stereoselective and β-regioselective hydroboration of propargyl alcohols was achieved simply with LiOtBu as the base and (Bpin)2 as the boron reagent in dimethyl sulfoxide at room temperature. Both terminal and internal propargyl alcohols with diverse structures and functional groups underwent the transformation smoothly to produce β-Bpin-substituted (E)-allylic alcohols, of which the synthetic potentials were demonstrated by the downstream conversions of boronate, alkenyl, and hydroxyl groups.
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Affiliation(s)
- Xia Tian
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
| | - Yu-Kun Zhang
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
| | - Ya-Xin You
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
| | - Jian-Rong Han
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
| | - Qiu-Shi Cheng
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
| | - Shi-Ming Fan
- Hebei Key Laboratory of Molecular Chemistry for Drug, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
| | - Di-Di Chen
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
| | - Ting-Ting Wang
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
| | - Shouxin Liu
- Hebei Key Laboratory of Molecular Chemistry for Drug, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
| | - Wei Su
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
- Hebei Key Laboratory of Molecular Chemistry for Drug, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang, Hebei 050022, People's Republic of China
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Zhuang JQ, Guo YQ, Deng CL, Zhang XG, Tu HY. TBAI-Mediated Cyclization and Methylsulfonylation of Propargylic Amides with Dimethyl Sulfite. J Org Chem 2023. [PMID: 37467194 DOI: 10.1021/acs.joc.3c00785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
A tetramethylammonium iodide (TBAI)-mediated cyclization and methylsulfonylation of propargylic amides enabled by dimethyl sulfite as a SO2 surrogate and methyl source have been developed. The transition metal-free and oxidant-free reaction provides a practical and efficient approach for the selective synthesis of methylsulfonyl oxazoles in moderate to excellent yields with good functional group compatibility.
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Affiliation(s)
- Jia-Qing Zhuang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Ying-Qiong Guo
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Chen-Liang Deng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hai-Yong Tu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
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4
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Miao X, Chen W, Lv S, Li A, Li Y, Zhang Q, Yue Y, Zhao H, Liu L, Guo S, Guo L. Stabilizing Single-Atomic Pt by Forming PtFe Bonds for Efficient Diboration of Alkynes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211790. [PMID: 36632699 DOI: 10.1002/adma.202211790] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/07/2023] [Indexed: 06/17/2023]
Abstract
Precisely tailoring the oxidation state of single-atomic metal in heterogeneous catalysis is an efficient way to stabilize the single-atomic site and promote their activity, but realizing this approach remains a grand challenge to date. Herein, a class of stable single-atomic catalysts with well-tuned oxidation state of Pt by forming PtFe atomic bonds is reported, which are supported by defective Fe2 O3 nanosheets on reduced graphene oxide (PFARFNs). These as-synthesized materials can greatly enhance the catalytic activity, stability, and selectivity for the diboration of alkynes. The PFARFNs exhibit high conversion of 99% at 100 °C with an outstanding turnover frequency (TOF) of 545 h-1 , and a relatively high conversion of 58% at room temperature (25 °C) with a TOF of 310 h-1 , which has been hardly achieved previously. Through both experimental and theoretical investigation, it is demonstrated that the fast electron transfer from Fe to Pt in Fe-Pt-O atomic sites in PFARFNs can not only stabilize the single-atomic Pt, but also significantly improve their catalytic activity.
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Affiliation(s)
- Xiang Miao
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Wenxing Chen
- Energy & Catalysis Center, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Shuning Lv
- School of Physics, Beihang University, Beijing, 100191, P. R. China
| | - Anran Li
- School of Engineering Medicine, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, 100191, P. R. China
| | - Yanhong Li
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yonghai Yue
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Hewei Zhao
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Limin Liu
- School of Physics, Beihang University, Beijing, 100191, P. R. China
| | - Shaojun Guo
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Lin Guo
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
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Wang Y, Li Y, Wang L, Ding S, Song L, Zhang X, Wu YD, Sun J. Ir-Catalyzed Regioselective Dihydroboration of Thioalkynes toward Gem-Diboryl Thioethers. J Am Chem Soc 2023; 145:2305-2314. [PMID: 36657379 DOI: 10.1021/jacs.2c10881] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
While 1,1-diboryl (gem-diboryl) compounds are valuable synthetic building blocks, currently, related studies have mainly focused on those 1,1-diboryl alkanes without a hetero functional group in the α-position. gem-Diboryl compounds with an α-hetero substituent, though highly versatile, have been limitedly accessible and thus rarely utilized. Herein, we have developed the first α-dihydroboration of heteroalkynes leading to the efficient construction of gem-diboryl, hetero-, and tetra-substituted carbon centers. This straightforward, practical, mild, and atom-economic reaction is an attractive complement to the conventional multistep synthetic strategy relying on deprotonation of gem-diborylmethane by a strong base. Specifically, [Ir(cod)(OMe)]2 was found to be uniquely effective for this process of thioalkynes, leading to excellent α-regioselectivity when delivering the two boryl groups, which is remarkable in view of the many competitive paths including monohydroboration, 1,2-dihydroboration, dehydrodiboration, triboration, tetraboration, etc. Control experiments combined with DFT calculations suggested that this process involves two sequential hydroboration events. The second hydroboration requires a higher energy barrier due to severe steric repulsion in generating the highly congested α-sulfenyl gem-diboryl carbon center, a structural motif that was almost unknown before.
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Affiliation(s)
- Yong Wang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
| | - Yuxuan Li
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
| | - Lei Wang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
| | - Shengtao Ding
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
| | - Lijuan Song
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Xinhao Zhang
- Shenzhen Bay Laboratory, Shenzhen 518055, China.,Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yun-Dong Wu
- Shenzhen Bay Laboratory, Shenzhen 518055, China.,Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Jianwei Sun
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon 999077, Hong Kong SAR, China.,Shenzhen Research Institute, HKUST, No. 9 Yuexing 1st Rd, Shenzhen 518057, China
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Qiu H, Lv K, Qu H, Zhang X, Yuan T, Yao W, Xue F, Ma M. Chemoselective electrocatalytic hydroboration of alkynes with pinacolborane. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Altarejos J, Valero A, Manzano R, Carreras J. Synthesis of Tri‐ and Tetrasubstituted Alkenyl Boronates from Alkynes. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Julia Altarejos
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica SPAIN
| | - Antonio Valero
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica SPAIN
| | - Rubén Manzano
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica SPAIN
| | - Javier Carreras
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica Carretera Madrid-Barcelona km 33,6, Campus Universitario.Facultad de Farmacia 28805 Alcalá de Henares SPAIN
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