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Demidoff FC, Caleffi GS, Figueiredo M, Costa PRR. Ru(II)-Catalyzed Asymmetric Transfer Hydrogenation of Chalcones in Water: Application to the Enantioselective Synthesis of Flavans BW683C and Tephrowatsin E. J Org Chem 2022; 87:14208-14222. [PMID: 36251770 DOI: 10.1021/acs.joc.2c01733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The oxo-tethered-Ru(II) precatalyst promoted the one-pot C═C/C═O reduction of chalcones using sodium formate as the hydrogen source in water through asymmetric transfer hydrogenation. Twenty-seven 1,3-diarylpropan-1-ols were obtained in good to excellent yields (up to 96%) and enantiomeric purities (up to 98:2). Our data suggested that the enones are first reduced to the corresponding dihydrochalcones (1,4-selectivity) and then into 1,3-diarylpropan-1-ols (C═O reduction). The stereoelectronic effects of electron-donating and electron-withdrawing groups at the ortho, meta and para positions of both aromatic rings were evaluated. The 2-OH group at the B ring was well tolerated, allowing a straightforward enantioselective synthesis of two flavans through the Mitsunobu cyclization, the antiviral (S)-BW683C and the natural flavan (S)-tephrowatsin E.
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Affiliation(s)
- Felipe C Demidoff
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco H, Cidade Universitária, 21.941-902 Rio de Janeiro, Brasil
| | - Guilherme S Caleffi
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco H, Cidade Universitária, 21.941-902 Rio de Janeiro, Brasil
| | - Marcella Figueiredo
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco H, Cidade Universitária, 21.941-902 Rio de Janeiro, Brasil
| | - Paulo R R Costa
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco H, Cidade Universitária, 21.941-902 Rio de Janeiro, Brasil
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Rajendran G, Bhanu D, Aruchamy B, Ramani P, Pandurangan N, Bobba KN, Oh EJ, Chung HY, Gangadaran P, Ahn BC. Chalcone: A Promising Bioactive Scaffold in Medicinal Chemistry. Pharmaceuticals (Basel) 2022; 15:ph15101250. [PMID: 36297362 PMCID: PMC9607481 DOI: 10.3390/ph15101250] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 09/26/2022] [Accepted: 10/01/2022] [Indexed: 11/16/2022] Open
Abstract
Chalcones are a class of privileged scaffolds with high medicinal significance due to the presence of an α,β-unsaturated ketone functionality. Numerous functional modifications of chalcones have been reported, along with their pharmacological behavior. The present review aims to summarize the structures from natural sources, synthesis methods, biological characteristics against infectious and non-infectious diseases, and uses of chalcones over the past decade, and their structure–activity relationship studies are detailed in depth. This critical review provides guidelines for the future design and synthesis of various chalcones. In addition, this could be highly supportive for medicinal chemists to develop more promising candidates for various infectious and non-infectious diseases.
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Affiliation(s)
- Gayathri Rajendran
- Dhanvanthri Laboratory, Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Center of Excellence in Advanced Materials & Green Technologies (CoE–AMGT), Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
| | - Deepu Bhanu
- Dhanvanthri Laboratory, Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Center of Excellence in Advanced Materials & Green Technologies (CoE–AMGT), Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
| | - Baladhandapani Aruchamy
- Dhanvanthri Laboratory, Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Center of Excellence in Advanced Materials & Green Technologies (CoE–AMGT), Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
| | - Prasanna Ramani
- Dhanvanthri Laboratory, Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Center of Excellence in Advanced Materials & Green Technologies (CoE–AMGT), Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Correspondence: (P.R.); (B.-C.A.)
| | - Nanjan Pandurangan
- Department of Sciences, Amrita School of Arts and Sciences, Mysuru Campus, Amrita Vishwa Vidyapeetham, Mysuru 570026, India
| | - Kondapa Naidu Bobba
- Department of Radiology and Biomedical Imaging, University of California (San Francisco), San Francisco, CA 94143, USA
| | - Eun Jung Oh
- Department of Plastic and Reconstructive Surgery, CMRI, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Korea
| | - Ho Yun Chung
- Department of Plastic and Reconstructive Surgery, CMRI, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Korea
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Prakash Gangadaran
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Korea
| | - Byeong-Cheol Ahn
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Korea
- Correspondence: (P.R.); (B.-C.A.)
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3
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Sharma A, Saraswat A. Overview on cumulative synthetic approaches for chalcone based functionalized scaffolds. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Yoshida T, Ahsan HM, Zhang HT, Izuogu DC, Abe H, Ohtsu H, Yamaguchi T, Breedlove BK, Thom AJW, Yamashita M. Ionic-caged heterometallic bismuth-platinum complex exhibiting electrocatalytic CO 2 reduction. Dalton Trans 2020; 49:2652-2660. [PMID: 32043108 DOI: 10.1039/c9dt04817k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An air-stable heterometallic Bi-Pt complex with the formula [BiPt(SAc)5]n (1; SAc = thioacetate) was synthesized. The crystal structure, natural bond orbital (NBO) and local orbital locator (LOL) analyses, localized orbital bonding analysis (LOBA), and X-ray absorption fine structure (XAFS) measurements were used to confirm the existence of Bi-Pt bonding and an ionic cage of O atoms surrounding the Bi ion. From the cyclic voltammetry (CV) and controlled potential electrolysis (CPE) experiments, 1 in tetrahydrofuran reduced CO2 to CO, with a faradaic efficiency (FE) of 92% and a turnover frequency (TOF) of 8 s-1 after 30 min of CPE at -0.79 V vs. NHE. The proposed mechanism includes an energetically favored pathway via the ionic cage, which is supported by the results of DFT calculations and reflectance infrared spectroelectrochemistry data.
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Affiliation(s)
- Takefumi Yoshida
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan.
| | - Habib Md Ahsan
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan. and Chemistry Discipline, Khulna University, Khulna-9208, Bangladesh
| | - Hai-Tao Zhang
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan.
| | - David Chukwuma Izuogu
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan. and Department of Pure & Industrial Chemistry, University of Nigeria, 410001, Nsukka, Nigeria and Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Hitoshi Abe
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan and Department of Materials Structure Science, School of High Energy Accelerator Science, SOKENDAI (the Graduate University for Advanced Studies), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Hiroyoshi Ohtsu
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Tadashi Yamaguchi
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan.
| | - Alex J W Thom
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan. and WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan and School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
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Rullah K, Mohd Aluwi MFF, Yamin BM, Juan JC, Wai LK. Palladium‐Catalysed Cross‐Coupling Reactions for the Synthesis of Chalcones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900297] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kamal Rullah
- Department of Pharmaceutical Chemistry Kulliyyah of PharmacyInternational Islamic University Malaysia Bandar Indera Mahkota 25200 Kuantan, Pahang Malaysia
- Drugs and Herbal Research Centre Faculty of PharmacyUniversiti Kebangsaan Malaysia Jalan Raja Muda Abdul Aziz 50300 Kuala Lumpur Malaysia
- Nanotechnology and Catalysis Research Centre (NANOCAT)University of Malaya 50603 Kuala Lumpur Malaysia
| | | | - Bohari M. Yamin
- School of Chemical Sciences & Food TechnologyUniversiti Kebangsaan Malaysia 43600 Bangi, Selangor Malaysia
| | - Joon Ching Juan
- Nanotechnology and Catalysis Research Centre (NANOCAT)University of Malaya 50603 Kuala Lumpur Malaysia
| | - Lam Kok Wai
- Drugs and Herbal Research Centre Faculty of PharmacyUniversiti Kebangsaan Malaysia Jalan Raja Muda Abdul Aziz 50300 Kuala Lumpur Malaysia
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A atom-efficient cross-coupling reaction of aryl iodides with triarylbismuths catalyzed by immobilization of palladium(II)-Schiff base complex in MCM-41. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.01.052] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Condon S, Pichon C, Davi M. Preparation and Synthetic Applications of Trivalent Arylbismuth Compounds as Arylating Reagents. A Review. ORG PREP PROCED INT 2014. [DOI: 10.1080/00304948.2014.884369] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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Abdel-Halim M, Keeton AB, Gurpinar E, Gary BD, Vogel SM, Engel M, Piazza GA, Boeckler FM, Hartmann RW, Abadi AH. Trisubstituted and tetrasubstituted pyrazolines as a novel class of cell-growth inhibitors in tumor cells with wild type p53. Bioorg Med Chem 2013; 21:7343-56. [DOI: 10.1016/j.bmc.2013.09.055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Revised: 09/13/2013] [Accepted: 09/22/2013] [Indexed: 10/26/2022]
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9
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Zhao H, Yin L, Cai M. A Phosphane-Free, Atom-Efficient Cross-Coupling Reaction of Triarylbismuths with Acyl Chlorides Catalyzed by MCM-41-Immobilized Palladium Complex. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201432] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Schott JT, Mordaunt CE, Vargas AJ, Leon MA, Chen KH, Singh M, Satoh M, Cardenas EL, Maitra S, Patel NV, de Lijser HJP. Effects of structural and electronic characteristics of chalcones on the activation of peroxisome proliferator-activated receptor gamma. Chem Pharm Bull (Tokyo) 2012. [PMID: 23183544 DOI: 10.1248/cpb.c12-00749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chalcones share some structural similarities with GW-1929, a highly-selective and potent agonist for peroxisome proliferator-activated receptor-gamma (PPARγ). In this study, we tested 53 structurally diverse chalcones to identify characteristics essential for PPARγ activation in a GAL4-based transactivation assay. This screen identified several novel chalcone agonists of PPARγ. Our results indicate that chalcones with an electron rich group or sterically large groups such as naphthyl on the carbonyl side tend to activate PPARγ. The absence of any strict structural or electronic requirements suggests that the flexibility of the PPARγ ligand binding pocket may allow binding of diverse chalcones with some preference for a slightly larger electron-rich group on the carbonyl side. We predict that further structure-activity relationship studies on chalcones with naphthalene or electron-rich groups near the carbonyl moiety will lead to the development of more potent PPARγ agonists.
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Affiliation(s)
- Jason Taylor Schott
- Department of Biological Science, California State University, Fullerton, CA 92831, USA
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11
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Monguchi Y, Hattori T, Miyamoto Y, Yanase T, Sawama Y, Sajiki H. Palladium on Carbon‐Catalyzed Cross‐Coupling using Triarylbismuths. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200179] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yasunari Monguchi
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, Gifu 501‐1196, Japan, Fax: (+81)‐58‐230‐8109; phone: (+81)‐58‐230‐8109
| | - Tomohiro Hattori
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, Gifu 501‐1196, Japan, Fax: (+81)‐58‐230‐8109; phone: (+81)‐58‐230‐8109
| | - Yasuhiro Miyamoto
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, Gifu 501‐1196, Japan, Fax: (+81)‐58‐230‐8109; phone: (+81)‐58‐230‐8109
| | - Takayoshi Yanase
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, Gifu 501‐1196, Japan, Fax: (+81)‐58‐230‐8109; phone: (+81)‐58‐230‐8109
| | - Yoshinari Sawama
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, Gifu 501‐1196, Japan, Fax: (+81)‐58‐230‐8109; phone: (+81)‐58‐230‐8109
| | - Hironao Sajiki
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, Gifu 501‐1196, Japan, Fax: (+81)‐58‐230‐8109; phone: (+81)‐58‐230‐8109
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12
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Nishimoto Y, Takeuchi M, Yasuda M, Baba A. Regio- and Stereoselective Carbobismuthination of Alkynes. Angew Chem Int Ed Engl 2011; 51:1051-4. [DOI: 10.1002/anie.201107127] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Indexed: 11/12/2022]
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13
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Nishimoto Y, Takeuchi M, Yasuda M, Baba A. Regio- and Stereoselective Carbobismuthination of Alkynes. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201107127] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Shimada S, Rao MLN. Transition-Metal Catalyzed C–C Bond Formation Using Organobismuth Compounds. ACTA ACUST UNITED AC 2011; 311:199-228. [DOI: 10.1007/128_2011_202] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Luan J, Zhang L, Hu Z. Synthesis, Properties Characterization and Applications of Various Organobismuth Compounds. Molecules 2011. [PMCID: PMC6263283 DOI: 10.3390/molecules16054191] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Organobismuth chemistry was emphasized in this review article due to the low price, low toxicity and low radioactivity characteristics of bismuth. As an environmentally-friendly class of organometallic compounds, different types of organobismuth compounds have been used in organic synthesis, catalysis, materials, etc. The synthesis and property characterization of many organobismuth compounds had been summarized. This review article also presented a survey of various applications of organobismuth compounds in organic transformations, as reagents or catalysts. The reactivity, reaction pathways and mechanisms of reactions with organobismuths were discussed. Less common and limiting aspects of organobismuth compounds were also briefly mentioned.
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Affiliation(s)
- Jingfei Luan
- Author to whom correspondence should be addressed; ; Tel.: +86-135-8520-6718; Fax: +86-25-8370-7304
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16
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Choi HH, Son YH, Jung MS, Kang EJ. α,β-Unsaturated acyl cyanide synthesis via triethylamine catalyzed redox cyanation. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.02.063] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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17
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Braunschweig H, Cogswell P, Schwab K. Synthesis, structure and reactivity of complexes containing a transition metal–bismuth bond. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2010.07.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Rao MLN, Venkatesh V, Jadhav DN. Palladium-Catalyzed Synthesis of 4-Arylcoumarins Using Triarylbismuth Compounds as Atom-Efficient Multicoupling Organometallic Nucleophiles. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000134] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Rao ML, Banerjee D, Giri S. Palladium-catalyzed cross-couplings of allylic carbonates with triarylbismuths as multi-coupling atom-efficient organometallic nucleophiles. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.03.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Rao ML, Banerjee D, Dhanorkar RJ. Pd(0)-catalyzed couplings using bromide and chloride derivatives of Baylis–Hillman adducts with triarylbismuths as atom-efficient multi-coupling nucleophiles. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.03.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Zhou WJ, Wang KH, Wang JX, Huang DF. Reusable, Polystyrene-Resin-Supported, Palladium-Catalyzed, Atom-Efficient Cross-Coupling Reaction of Aryl Halides with Triarylbismuths. European J Org Chem 2010. [DOI: 10.1002/ejoc.200901210] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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22
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Braunschweig H, Brenner P, Cogswell P, Kraft K, Schwab K. Oxidative addition of the bismuth-chloride bond: synthesis and structure of trans-[PtCl(PCy3)2{BiCl2}]. Chem Commun (Camb) 2010; 46:7894-6. [DOI: 10.1039/c0cc00639d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Pd-catalyzed synthesis of α-aryl ketones through couplings of α-arylacetyl chlorides with triarylbismuths as multi-coupling nucleophiles. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.08.074] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Arylations of allylic acetates with triarylbismuths as atom-efficient multi-coupling reagents under palladium catalysis. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.07.148] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Rao MLN, Jadhav DN, Venkatesh V. Atom-Efficient Vinylic Arylations with Triarylbismuths as Substoichiometric Multicoupling Reagents under Palladium Catalysis. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900487] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Rao ML, Jadhav DN, Venkatesh V. Pd(0)/C-catalyzed cross-couplings of acyl chlorides with triarylbismuths as atom-efficient sub-stoichiometric multi-coupling reagents. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.05.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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