1
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Nussbaum BC, Humphries AL, Gange GB, Peryshkov DV. Redox-active carborane clusters in bond activation chemistry and ligand design. Chem Commun (Camb) 2023; 59:9918-9928. [PMID: 37522167 DOI: 10.1039/d3cc03011c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Icosahedral closo-dodecaboranes have the ability to accept two electrons, opening into a dianionic nido-cluster. This transformation can be utilized to store electrons, drive bond activation, or alter coordination to metal cations. In this feature article, we present cases for each of these applications, wherein the redox activity of carborane facilitates the generation of unique products. We highlight the effects of exohedral substituents on reactivity and the stability of the products through conjugation between the cluster and exohedral substituents. Futher, the utilization of the redox properties and geometry of carborane clusters in the ligand design is detailed, both in the stabilization of low-valent complexes and in the tuning of ligand geometry.
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Affiliation(s)
- Bryce C Nussbaum
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter St, Columbia, South Carolina 29208, USA.
| | - Amanda L Humphries
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter St, Columbia, South Carolina 29208, USA.
| | - Gayathri B Gange
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter St, Columbia, South Carolina 29208, USA.
| | - Dmitry V Peryshkov
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter St, Columbia, South Carolina 29208, USA.
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2
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Gange GB, Humphries AL, Smith MD, Peryshkov DV. Activation of Alkynes by a Redox-Active Carboranyl Diphosphine and Formation of Boron-Containing Phosphacycles. Inorg Chem 2022; 61:18568-18573. [DOI: 10.1021/acs.inorgchem.2c02919] [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)
- Gayathri B. Gange
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Amanda L. Humphries
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Mark D. Smith
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Dmitry V. Peryshkov
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
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3
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Zhang CY, Cao K, Yang HB, Ding LF, Yang J. Cu(OTf) 2/NBS-Mediated Tandem Reaction of 1-Cinnamyl Alcohol- o-Carboranes via Ring Opening of Oxetane with Arenes: An Alternative Approach for the Synthesis of C-Alkenyl- o-Carboranes. J Org Chem 2022; 87:10928-10936. [PMID: 35921205 DOI: 10.1021/acs.joc.2c01217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Cu(OTf)2/NBS-mediated tandem reaction of 1-cinnamyl alcohol-o-carboranes for the synthesis of C-alkenyl-o-carboranes has been developed. Mechanism studies demonstrated that the Cu(OTf)2-promoted ring opening of oxetane with electron-rich arenes as soft nucleophiles was involved and was the key step for the transformation. This work provided an alternative strategy for the synthesis of C-alkenyl-o-carboranes, which has an important reference for the synthesis of o-carborane derivatives with diversity.
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Affiliation(s)
- Cai-Yan Zhang
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
| | - Ke Cao
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
| | - Han-Bo Yang
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
| | - Li-Fang Ding
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
| | - Junxiao Yang
- State Key Laboratory of Environment-Friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan 621010, P. R. China
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4
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Jei BB, Yang L, Ackermann L. Selective Labeling of Peptides with o-Carboranes via Manganese(I)-Catalyzed C-H Activation. Chemistry 2022; 28:e202200811. [PMID: 35420234 PMCID: PMC9320968 DOI: 10.1002/chem.202200811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Indexed: 12/15/2022]
Abstract
A robust method for the selective labeling of peptides via manganese(I) catalysis was devised to achieve the C-2 alkenylation of tryptophan containing peptides with 1-ethynyl-o-carboranes. The manganese-catalyzed C-H activation was accomplished with high catalytic efficiency, and featured low toxicity, high functional group tolerance and excellent E-stereoselectivity. This approach unravels a promising tool for the assembly of o-carborane with structurally complex peptides of relevance to applications in boron neutron capture therapy.
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Affiliation(s)
- Becky Bongsuiru Jei
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTamannstraße 237077GöttingenGermany
- Woehler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Long Yang
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTamannstraße 237077GöttingenGermany
- Woehler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTamannstraße 237077GöttingenGermany
- Woehler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
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5
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Recent trends and tactics in facile functionalization of neutral icosahedral carboranes (C2B10H12) and nido-carborane (7,8-C2B9H12−). ADVANCES IN CATALYSIS 2022. [DOI: 10.1016/bs.acat.2022.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Ni H, Lu Z, Xie Z. Light-enabled alkenylation of iodocarboranes with unactivated alkenes. Dalton Trans 2021; 51:104-110. [PMID: 34870668 DOI: 10.1039/d1dt03726a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of alkenylated-o-carboranes via photoalkenylation of iodocarboranes with unactivated alkenes has been achieved. This strategy features a transition metal-free protocol, a light-promoted reaction under mild reaction conditions, broad substrate scope and good functional group tolerance. Control experiments suggest that the reaction may involve the cage C-centered radical species.
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Affiliation(s)
- Hangcheng Ni
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin N. T., Hong Kong, China.
| | - Zhenpin Lu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin N. T., Hong Kong, China.
| | - Zuowei Xie
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin N. T., Hong Kong, China.
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7
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Tao G, Bai M, Liu Z, Duan Z. Intermolecular Cyclization between Carboranylphosphines and Electron-Deficient Alkynes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guanyu Tao
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, PR China
| | - Mengyang Bai
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, PR China
| | - Zhenxing Liu
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, PR China
| | - Zheng Duan
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, PR China
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8
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Lian L, Yin J, Lin C, Ye K, Yuan Y. Phosphine Oxide-Directed Palladium-Catalyzed Heck-Type Functionalization of o-Carboranes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Seifert F, Drikermann D, Steinmetzer J, Zi Y, Kupfer S, Vilotijevic I. Z-Selective phosphine promoted 1,4-reduction of ynoates and propynoic amides in the presence of water. Org Biomol Chem 2021; 19:6092-6097. [PMID: 34152338 DOI: 10.1039/d1ob00909e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phosphine-mediated reductions of substituted propynoic esters and amides in the presence of water yield the partially reduced α,β-unsaturated esters and amides with high Z-selectivity. The competitive in situ Z to E-isomerization of the product in some cases lowers the Z to E ratios of the isolated α,β-unsaturated carbonyl products. Reaction time and the amounts of phosphine and water in the reaction mixture are the key experimental factors which control the selectivity by preventing or reducing the rates of Z- to E-product isomerization. Close reaction monitoring enables isolation of the Z-alkenes with high selectivities. The computational results suggest that the reactions could be highly Z-selective owing to the stereoselective formation of the E-P-hydroxyphosphorane intermediate.
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Affiliation(s)
- Fabian Seifert
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
| | - Denis Drikermann
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
| | - Johannes Steinmetzer
- Institute for Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - You Zi
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
| | - Stephan Kupfer
- Institute for Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - Ivan Vilotijevic
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
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10
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Zhang K, Cai L, Hong S, Kwon O. Phosphine-Catalyzed α-Umpolung-Aldol Reaction for the Synthesis of Benzo[ b]azapin-3-ones. Org Lett 2019; 21:5143-5146. [PMID: 31247774 PMCID: PMC7338222 DOI: 10.1021/acs.orglett.9b01749] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A novel phosphine-catalyzed intermolecular cyclization between 2-sulfonamidobenzaldehyes and ynones is reported. This methodology serves as a conduit for the construction of benzo[ b]azepin-3-ones in good to excellent yields under mild conditions. The resulting 2-benzylidene moieties are formed exclusively in the E-configuration. Mechanistically, this unusual annulation occurs through a phosphine-catalyzed α-umpolung addition, followed by an aldol reaction. One of the benzo[ b]azepin-3-one products was converted to the core structure of 3-amino-[ a]benzazepin-2-one-1-alkanoic acids, many of which function as angiotensin-converting enzyme inhibitors.
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Affiliation(s)
- Kui Zhang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Lingchao Cai
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Sooji Hong
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
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11
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Mu WH, Liu WZ, Cheng RJ, Fang DC. Electronic Effect-Guided, Palladium-Catalyzed Regioselective B-H Activation and Multistep Diarylation of o-Carboranes with Aryl Iodides. ACS OMEGA 2019; 4:465-474. [PMID: 31459344 PMCID: PMC6648749 DOI: 10.1021/acsomega.8b02654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 12/14/2018] [Indexed: 06/10/2023]
Abstract
Density functional theory calculations at IDSCRF-B3LYP/DZVP computational level were conducted on palladium-catalyzed regioselective B-H activation and diarylation of o-carboranes with aryl iodides in solution. Computational results indicate that this reaction follows a multistep mechanism and needs to get over several transition states before the final B(4,5)-diarylated o-carborane derivatives are formed. B-H activation, oxidation addition, and successive reduction of the Pd(II) catalyst involving a Pd(II)-Pd(IV)-Pd(II) catalytic cycle has been confirmed, in which AgOAc plays a crucial role. Electron-donating group on the cage carbon of o-carboranes is verified to be beneficial for its B-H activation and diarylation, while steric hindrance between the aryl and o-carboranyl groups retards it. Natural population analysis and Gibbs free energetic results predict consistent regioselectivities with experiments and manifest the pivotal role of electronic effect in controlling regioselective B-H activation of o-carboranes. These results are expected to shed some light on further improvement of experimental conditions and better controlling of regioselectivities.
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Affiliation(s)
- Wei-Hua Mu
- Faculty
of Chemistry and Chemical Engineering, Yunnan
Normal University, Kunming 650092, People’s Republic
of China
| | - Wen-Zhu Liu
- Faculty
of Chemistry and Chemical Engineering, Yunnan
Normal University, Kunming 650092, People’s Republic
of China
| | - Rui-Jiao Cheng
- Faculty
of Chemistry and Chemical Engineering, Yunnan
Normal University, Kunming 650092, People’s Republic
of China
| | - De-Cai Fang
- College
of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
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12
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Huang G, Ren X, Jiang C, Wu JH, Gao G, Wang T. Efficient synthesis of (E)-2-nitromethylcinnamatesviaphosphine-catalyzed tandem α-addition and 1,3-rearrangement. Org Chem Front 2019. [DOI: 10.1039/c9qo00478e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthetic approach for accessing (E)-2-nitromethylcinnamatesviaa phosphine-promoted tandem reaction between substituted nitromethanes and alkynes has been developed.
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Affiliation(s)
- Guofei Huang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xiaoyu Ren
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Chunhui Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Jia-Hong Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Guowei Gao
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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13
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Abstract
The hallmark of nucleophilic phosphine catalysis is the initial nucleophilic addition of a phosphine to an electrophilic starting material, producing a reactive zwitterionic intermediate, generally under mild conditions. In this Review, we classify nucleophilic phosphine catalysis reactions in terms of their electrophilic components. In the majority of cases, these electrophiles possess carbon-carbon multiple bonds: alkenes (section 2), allenes (section 3), alkynes (section 4), and Morita-Baylis-Hillman (MBH) alcohol derivatives (MBHADs; section 5). Within each of these sections, the reactions are compiled based on the nature of the second starting material-nucleophiles, dinucleophiles, electrophiles, and electrophile-nucleophiles. Nucleophilic phosphine catalysis reactions that occur via the initial addition to starting materials that do not possess carbon-carbon multiple bonds are collated in section 6. Although not catalytic in the phosphine, the formation of ylides through the nucleophilic addition of phosphines to carbon-carbon multiple bond-containing compounds is intimately related to the catalysis and is discussed in section 7. Finally, section 8 compiles miscellaneous topics, including annulations of the Hüisgen zwitterion, phosphine-mediated reductions, iminophosphorane organocatalysis, and catalytic variants of classical phosphine oxide-generating reactions.
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Affiliation(s)
- Hongchao Guo
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yi Chiao Fan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569, USA
| | - Zhanhu Sun
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yang Wu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569, USA
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14
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Gao Y, Cui PF, Aznarez F, Jin GX. Iridium-Induced Regioselective B−H and C−C Activations at Azo-Substitutedo-Carboranes. Chemistry 2018; 24:10357-10363. [DOI: 10.1002/chem.201801381] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/03/2018] [Indexed: 01/15/2023]
Affiliation(s)
- Yang Gao
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry; Fudan University; Shanghai 200433 P.R. China
| | - Peng-Fei Cui
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry; Fudan University; Shanghai 200433 P.R. China
| | - Francisco Aznarez
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry; Fudan University; Shanghai 200433 P.R. China
| | - Guo-Xin Jin
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry; Fudan University; Shanghai 200433 P.R. China
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15
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Xu Z, Wang P, Chen Q, Cai M. A practical synthesis of unsymmetrical triarylphosphines by heterogeneous palladium(0)-catalyzed cross-coupling of aryl iodides with diphenylphosphine. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Fang Z, Cai M, Lin Y, Zhao H. An efficient heterogeneous cross-coupling of aryl iodides with diphenylphosphine catalyzed by copper (I) immobilized in MCM-41. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4417] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhiqiang Fang
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering and Technology Research Center; Guangdong Pharmaceutical University; Guangzhou 510006 People's Republic of China
| | - Mingzhong Cai
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Yang Lin
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering and Technology Research Center; Guangdong Pharmaceutical University; Guangzhou 510006 People's Republic of China
| | - Hong Zhao
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering and Technology Research Center; Guangdong Pharmaceutical University; Guangzhou 510006 People's Republic of China
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17
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Tang C, Zhang J, Xie Z. Direct Nucleophilic Substitution Reaction of Cage B−H Bonds by Grignard Reagents: A Route to Regioselective B4-Alkylation ofo-Carboranes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702347] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Cen Tang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; The Chinese University of Hong Kong, Shatin, N.T.; Hong Kong China
| | - Jiji Zhang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; The Chinese University of Hong Kong, Shatin, N.T.; Hong Kong China
| | - Zuowei Xie
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; The Chinese University of Hong Kong, Shatin, N.T.; Hong Kong China
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18
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Tang C, Zhang J, Xie Z. Direct Nucleophilic Substitution Reaction of Cage B−H Bonds by Grignard Reagents: A Route to Regioselective B4-Alkylation ofo-Carboranes. Angew Chem Int Ed Engl 2017; 56:8642-8646. [DOI: 10.1002/anie.201702347] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Cen Tang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; The Chinese University of Hong Kong, Shatin, N.T.; Hong Kong China
| | - Jiji Zhang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; The Chinese University of Hong Kong, Shatin, N.T.; Hong Kong China
| | - Zuowei Xie
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; The Chinese University of Hong Kong, Shatin, N.T.; Hong Kong China
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