1
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Schwans CL, Clark TD, O’Neil GW. Hydroxyl-Directed Regio- and Diastereoselective Allylic Sulfone Reductions with [Sm(H 2O) n]I 2. J Org Chem 2024; 89:692-700. [PMID: 38091512 PMCID: PMC10777405 DOI: 10.1021/acs.joc.3c01647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 01/06/2024]
Abstract
Allylic 1,2- and 1,3-hydroxy phenyl sulfones undergo regioselective and diastereoselective desulfonylation with double bond migration upon treatment with [Sm(H2O)n]I2. Selectivity in these reactions is thought to arise from the formation of a chelated organosamarium intermediate followed by intramolecular protonation by samarium-bound water, which is supported by observed diastereoselectivity and stereospecificity trends along with deuterium labeling experiments. The reaction was then featured in the synthesis of the phenolic fragment of the thailandamide natural products.
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Affiliation(s)
- Cody L. Schwans
- Department of Chemistry, Western Washington University, Bellingham, Washington 98225, United States
| | - Trevor D. Clark
- Department of Chemistry, Western Washington University, Bellingham, Washington 98225, United States
| | - Gregory W. O’Neil
- Department of Chemistry, Western Washington University, Bellingham, Washington 98225, United States
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2
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Sośnicki JG, Borzyszkowska-Ledwig A, Idzik TJ, Lubowicz MM, Maciejewska G, Struk Ł. Divergent Synthesis of Functionalized Indenopyridin-2-ones and 2-Pyridones via Benzyl Group Transfer: Two Cases of Aza-semipinacol-Type Rearrangement. Org Lett 2022; 24:8498-8502. [DOI: 10.1021/acs.orglett.2c03361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Jacek G. Sośnicki
- West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry, Al. Piastów 42, Szczecin 71-065, Poland
| | - Aleksandra Borzyszkowska-Ledwig
- West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry, Al. Piastów 42, Szczecin 71-065, Poland
| | - Tomasz J. Idzik
- West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry, Al. Piastów 42, Szczecin 71-065, Poland
| | - Magdalena M. Lubowicz
- West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry, Al. Piastów 42, Szczecin 71-065, Poland
| | - Gabriela Maciejewska
- Wrocław University of Science and Technology, Faculty of Chemistry, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Łukasz Struk
- West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry, Al. Piastów 42, Szczecin 71-065, Poland
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3
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Li H, Lai Z, Peng M, Ning L, Dong Q, Hou Y, An J. One-Pot Sequential Hydrogen Isotope Exchange/Reductive Deuteration for the Preparation of α,β-Deuterated Alcohols using Deuterium Oxide. Org Lett 2022; 24:5319-5323. [PMID: 35856804 DOI: 10.1021/acs.orglett.2c01940] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient one-pot sequential hydrogen isotope exchange (HIE)/reductive deuteration approach was developed for the preparation of α,β-deuterated alcohols using ketones as the precursors. The HIE step can also be used for the synthesis of α-deuterated ketones. This method has been applied in the synthesis of four deuterated drug and MS internal standards.
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Affiliation(s)
- Hengzhao Li
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China.,Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Zemin Lai
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Mengqi Peng
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Lei Ning
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Qixin Dong
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Yuxia Hou
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Jie An
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
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4
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Abstract
An important strategy for the efficient generation of diversity in molecular structures is the utilization of common starting materials in chemodivergent transformations. The most studied solutions for switching the chemoselectivity rely on the catalyst, ligand, additive, solvent, temperature, time, pressure, pH and even small modifications in the substrate. In this review article several processes have been selected such as inter- and intramolecular cyclizations, including carba-, oxa-, thia- and oxazacyclizations promoted mainly by Brønsted or Lewis acids, transition metals and organocatalysts, as well as radical reactions. Catalyst-controlled intra- and intermolecular cyclizations are mainly described to give five- and six-membered rings. Cycloaddition reactions involving (2+2), (3+2), (3+3), (4+1), (4+2), (5+2), (6+2) and (7+2) processes are useful reactions for the synthesis of cyclic systems using organocatalysts, metal catalysts and Lewis acid-controlled processes. Addition reactions mainly of carba- and heteronucleophiles to unsaturated conjugated substrates can give different adducts via metal catalyst-, Lewis acid- and solvent-dependent processes. Carbonylation reactions of amines and phenols are carried out via ligand-controlled transition metal-catalyzed multicomponent processes. Ring-opening reactions starting mainly from cyclopropanols, cyclopropenols and epoxides or aziridines are applied to the synthesis of acyclic versus cyclic products under catalyst-control mainly by Lewis acids. Chemodivergent reduction reactions are performed using dissolving metals, sodium borohydride or hydrogen transfer conditions under solvent control. Oxidation reactions include molecular oxygen under solvent control or using different dioxiranes, as well as chemodivergent palladium catalyzed cross-coupling reactions using boronic acids are applied to aromatic and allenic compounds. Other chemodivergent reactions such as alkylations and allylations under transition metal catalysis, dimerization of acetylenes, bromination of benzylic substrates, and A3-couplings are performed via catalyst- or reaction condition-dependent processes.
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Affiliation(s)
- Irina P Beletskaya
- Chemistry Department, M. V. Lomonosov Moscow University, Leminskie Gory 1, 119992 Moscow, Russia
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5
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Nimkar A, Maity S, Hoz S. Coordination of tridentate ligands to SmI 2: cooperativity and incremental effect on reduction potential and on reactivity. PURE APPL CHEM 2020. [DOI: 10.1515/pac-2019-0213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Abstract
The effect of coordination of a series of tridentate ligands (TDLs) on various features of SmI2 was determined. The TDLs used in this study were diethylene glycol (OOO), diethanolamine (ONO), 2-(2-Aminoethoxy) ethanol (OON), N-(2-Hydroxyethyl) ethylene diamine (ONN) and glycerol (GLY). Of special interest is the effect of these additives on the reduction potential of SmI2. The cyclic voltammograms of the TDLs with nitrogen at the binding sites display simultaneously several peaks, each corresponding to a different coordination level of SmI2, enabling determination of three equilibrium constants. The results are in concert with electronic spectra of SmI2 complexes with these ligands. The second and third equilibrium constants were found to be larger than the first, demonstrating the cooperativity effect. Moreover, the incremental effect of each moiety on the reduction potential of SmI2 was determined. Regarding reactivity of SmI2, excessive coordination of some ligands is shown to have an adverse effect.
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Affiliation(s)
- Amey Nimkar
- Department of Chemistry , Bar-Ilan University , Ramat Gan 5290002 , Israel
| | - Sandeepan Maity
- Department of Chemistry , Bar-Ilan University , Ramat Gan 5290002 , Israel
| | - Shmaryahu Hoz
- Department of Chemistry , Bar-Ilan University , Ramat Gan 5290002 , Israel
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6
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Noikham M, Yotphan S. Copper-Catalyzed Regioselective Direct C-H Thiolation and Thiocyanation of Uracils. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900343] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Medena Noikham
- Center of Excellence for Innovation in Chemistry (PERCH-CIC); Department of Chemistry, Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
| | - Sirilata Yotphan
- Center of Excellence for Innovation in Chemistry (PERCH-CIC); Department of Chemistry, Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
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7
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Abstract
Ligation plays a multifaceted role in the chemistry of SmI2. Depending on the ligand, two of its major effects are increasing the reduction potential of SmI2, and in the case of a ligand, which is also a proton donor, it may also enhance the reaction by protonation of the radical anion generated in the preceding step. It turns out that the number of ligand molecules that are needed to maximize the reduction potential of SmI2 is significantly smaller than the number of ligand molecules needed for a maximal enhancement of the protonation rate. In addition to the economical use of the ligand, this information can also be utilized as a diagnostic tool for the reaction mechanism in differentiating between single and multistep processes. The possible pitfalls in applying this diagnostic tool to PCET and cyclization reactions are discussed.
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Affiliation(s)
- Sandeepan Maity
- Department of Chemistry , Bar-Ilan University , Ramat Gan 5290002 , Israel
| | - Amey Nimkar
- Department of Chemistry , Bar-Ilan University , Ramat Gan 5290002 , Israel
| | - Shmaryahu Hoz
- Department of Chemistry , Bar-Ilan University , Ramat Gan 5290002 , Israel
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8
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Golovnev NN, Molokeev MS, Sterkhova IV, Lesnikov MK. Crystal structures of [Cu2(2,2′-bipyridine-N,N′)2(H2O)2(μ2-OH)2](barbiturate)2·2H2O and [Cu(2,2′-bipyridine-N,N′)(H2O)(barbiturate-O)Cl]·2H2O. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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9
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Wang J, Zhang QY, Xie MS, Wang DC, Qu GR, Guo HM. Cyclization Reaction of Donor-Acceptor Oxiranes with N,N'-Disubstituted Thioureas: A Domino Process to trans-Dihydropyrimidines. Org Lett 2018; 20:6578-6582. [PMID: 30295493 DOI: 10.1021/acs.orglett.8b02930] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An unprecedented cyclization reaction of donor-acceptor oxiranes with N,N'-disubstituted thioureas to construct trans-dihydropyrimidines is presented. Preliminary reaction mechanism studies demonstrated that the reaction underwent sequential cycloaddition/amine ester exchange/oxygen-sulfur exchange/desulfuration/Michael addition process. A wide range of trans-dihydropyrimidines were produced with high yields up to 94% by using this method.
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Affiliation(s)
- Jing Wang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Qi-Ying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Ming-Sheng Xie
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Dong-Chao Wang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Gui-Rong Qu
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Hai-Ming Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
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10
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Chciuk TV, Anderson WR, Flowers RA. Interplay between Substrate and Proton Donor Coordination in Reductions of Carbonyls by SmI2–Water Through Proton-Coupled Electron-Transfer. J Am Chem Soc 2018; 140:15342-15352. [DOI: 10.1021/jacs.8b08890] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tesia V. Chciuk
- Department of Chemistry, Lehigh University, 6 E. Packer Avenue, Bethlehem, Pennsylvania 18015, United States
| | - William R. Anderson
- Department of Chemistry, Lehigh University, 6 E. Packer Avenue, Bethlehem, Pennsylvania 18015, United States
| | - Robert A. Flowers
- Department of Chemistry, Lehigh University, 6 E. Packer Avenue, Bethlehem, Pennsylvania 18015, United States
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11
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Wang X, Li J, Yuan T, You B, Xie G, Lv X. Additive Tuned Selective Synthesis of Bicyclo[3.3.0]octan-1-ols and Bicyclo[3.1.0]hexan-1-ols Mediated by AllylSmBr. J Org Chem 2018; 83:8984-8994. [PMID: 29944369 DOI: 10.1021/acs.joc.8b01170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The selective construction of bicyclo[3.3.0]octan-1-ols and bicyclo[3.1.0]hexan-1-ols was achieved by using an allylSmBr/additive(s) system. By employing HMPA as the only additive, the momoallylation/ketone-alkene coupling occurred preferably and afforded bicyclo[3.3.0]octan-1-ols in good yields with high diastereoselectivities. While the ester-alkene coupling predominated to generate bicyclo[3.1.0]hexan-1-ols in moderate yields with excellent diastereoselectivities in the presence of a proton source, such as pyrrole as the coadditive with HMPA. The tunable reactivity of allylSmBr by additive(s) would make it a versatile reagent in organic synthesis.
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Affiliation(s)
- Xiaoxia Wang
- School of Environment and Civil Engineering , Dongguan University of Technology , Dongguan , 523808 , People's Republic of China.,College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua 321004 , People's Republic of China
| | - Jianyong Li
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua 321004 , People's Republic of China
| | - Ting Yuan
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua 321004 , People's Republic of China
| | - Bingxin You
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua 321004 , People's Republic of China
| | - Guanqun Xie
- School of Environment and Civil Engineering , Dongguan University of Technology , Dongguan , 523808 , People's Republic of China.,College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua 321004 , People's Republic of China
| | - Xin Lv
- College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua 321004 , People's Republic of China
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12
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Zhou ZW, Jia FC, Xu C, Jiang SF, Wu YD, Wu AX. Temperature-Controlled Base-Promoted Cyclization for the Synthesis of 2-Amino-4H
-benzo[d
][1,3]thiazin-4-ones and 2-Thioxo-4(3H
)-quinazolinones. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700443] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhi-Wen Zhou
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry, Central China Normal University; 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Feng-Cheng Jia
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry, Central China Normal University; 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Cheng Xu
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry, Central China Normal University; 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Shi-Fen Jiang
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry, Central China Normal University; 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry, Central China Normal University; 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry, Central China Normal University; 152 Luoyu Road Wuhan Hubei 430079 P. R. China
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13
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Maity S, Flowers RA, Hoz S. Aza versus Oxophilicity of SmI
2
: A Break of a Paradigm. Chemistry 2017; 23:17070-17077. [PMID: 29024166 DOI: 10.1002/chem.201703394] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Sandeepan Maity
- Department of Chemistry Lehigh University 6 E Packer Ave. Bethlehem Pennsylvania- 18015 USA
- Department of Chemistry Bar-Ilan University Geha Road Ramat Gan- 52900 Israel
| | - Robert A. Flowers
- Department of Chemistry Lehigh University 6 E Packer Ave. Bethlehem Pennsylvania- 18015 USA
| | - Shmaryahu Hoz
- Department of Chemistry Bar-Ilan University Geha Road Ramat Gan- 52900 Israel
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14
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Kumar Y, Jaiswal Y, Shaw M, Kumar A. Metal-Free Catalyst-Controlled Chemoselective Synthesis of Aryl α
-Ketoesters and Primary α
-Ketoamides from Aryl Acetimidates. ChemistrySelect 2017. [DOI: 10.1002/slct.201701322] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yogesh Kumar
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
| | - Yogesh Jaiswal
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
| | - Mukta Shaw
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
| | - Amit Kumar
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
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15
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Huang L, Gong J, Zhu Z, Wang Y, Guo S, Cai H. Selective Phosphoramidation and Phosphonation of Benzoxazoles via Sequence Control. Org Lett 2017; 19:2242-2245. [DOI: 10.1021/acs.orglett.7b00726] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ling Huang
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road Nanchang 330031, P. R. China
| | - Jiuhan Gong
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road Nanchang 330031, P. R. China
| | - Zheng Zhu
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road Nanchang 330031, P. R. China
| | - Yufeng Wang
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road Nanchang 330031, P. R. China
| | - Shengmei Guo
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road Nanchang 330031, P. R. China
| | - Hu Cai
- Department of Chemistry, Nanchang University, No. 999, Xuefu Road Nanchang 330031, P. R. China
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16
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Xie T, Xiao Y, Zhao S, Hu XQ, Xu PF. Catalyst-Free Chemoselective Synthesis of 3,4-Dihydroquinazoline-2-thiones and 2-Imino[1,3]benzothiazines. J Org Chem 2016; 81:10499-10505. [DOI: 10.1021/acs.joc.6b01232] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ting Xie
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yu Xiao
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shuai Zhao
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, P. R. China
| | - Xiu-Qin Hu
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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17
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Wu W, Dai W, Ji X, Cao S. Silver-Mediated anti-Markovnikov and Markovnikov-Selective Hydrotrifluoromethylthiolation of Terminal Alkynes. Org Lett 2016; 18:2918-21. [DOI: 10.1021/acs.orglett.6b01286] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wei Wu
- Shanghai Key Laboratory
of
Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China
| | - Wenpeng Dai
- Shanghai Key Laboratory
of
Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China
| | - Xinfei Ji
- Shanghai Key Laboratory
of
Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China
| | - Song Cao
- Shanghai Key Laboratory
of
Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China
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18
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Morales-Serna JA, Frontana-Uribe BA, Olguín R, Gómez-Vidales V, Lomas-Romero L, Garcia-Ríos E, Gaviño R, Cárdenas J. Reaction control in heterogeneous catalysis using montmorillonite: switching between acid-catalysed and red-ox processes. RSC Adv 2016. [DOI: 10.1039/c6ra05293b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
For a montmorillonite clay modified with a super-acid (CF3SO3H), two different modes of behaviour can take place simply by a judicious choice of reaction conditions.
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Affiliation(s)
| | - Bernardo A. Frontana-Uribe
- Centro Conjunto de Investigación en Química Sustentable
- UAEM-UNAM
- C.P. 50200 Toluca
- Mexico
- Instituto de Química
| | - Rosario Olguín
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- Ciudad de México 04510
| | - Virginia Gómez-Vidales
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- Ciudad de México 04510
| | - Leticia Lomas-Romero
- Departamento de Química
- Universidad Autónoma Metropolitana-Iztapalapa
- Ciudad deMéxico 09340
- Mexico
| | - Erendira Garcia-Ríos
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- Ciudad de México 04510
| | - Ruben Gaviño
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- Ciudad de México 04510
| | - Jorge Cárdenas
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- Ciudad de México 04510
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19
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Zhu B, Lee R, Li J, Ye X, Hong SN, Qiu S, Coote ML, Jiang Z. Chemoselective Switch in the Asymmetric Organocatalysis of 5H-Oxazol-4-ones andN-Itaconimides: Addition-Protonation or [4+2] Cycloaddition. Angew Chem Int Ed Engl 2015; 55:1299-303. [DOI: 10.1002/anie.201507796] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/21/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Bo Zhu
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
| | - Richmond Lee
- ARC Centre of Excellence for Electromaterials Science, Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
| | - Jiangtao Li
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
| | - Xinyi Ye
- Division of Chemistry and Biological Chemistry; Nanyang Technological University; 21 Nanyang Link 637371 Singapore Singapore
| | - San-Ni Hong
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
| | - Shuai Qiu
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
| | - Michelle L. Coote
- ARC Centre of Excellence for Electromaterials Science, Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
| | - Zhiyong Jiang
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
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20
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Zhu B, Lee R, Li J, Ye X, Hong SN, Qiu S, Coote ML, Jiang Z. Chemoselective Switch in the Asymmetric Organocatalysis of 5H-Oxazol-4-ones andN-Itaconimides: Addition-Protonation or [4+2] Cycloaddition. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507796] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Bo Zhu
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
| | - Richmond Lee
- ARC Centre of Excellence for Electromaterials Science, Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
| | - Jiangtao Li
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
| | - Xinyi Ye
- Division of Chemistry and Biological Chemistry; Nanyang Technological University; 21 Nanyang Link 637371 Singapore Singapore
| | - San-Ni Hong
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
| | - Shuai Qiu
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
| | - Michelle L. Coote
- ARC Centre of Excellence for Electromaterials Science, Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
| | - Zhiyong Jiang
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Jinming Campus Kaifeng Henan 475004 P.R. China
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21
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Deshmukh MS, Srivastava A, Das B, Jain N. Zinc Triflate Catalyzed C-Benzylation: Chemo- and Regioselective Route to Amido Substituted Diaryl and Arylheteroarylmethanes. J Org Chem 2015; 80:10041-8. [DOI: 10.1021/acs.joc.5b01646] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
| | - Ananya Srivastava
- Department
of Chemistry, Indian Institute of Technology, New Delhi 110016, India
| | - Biswajit Das
- Daiichi Sankyo India Pharma Pvt. Ltd., Sector-18, Gurgaon, Haryana 122015, India
| | - Nidhi Jain
- Department
of Chemistry, Indian Institute of Technology, New Delhi 110016, India
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22
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Qiu JK, Jiang B, Zhu YL, Hao WJ, Wang DC, Sun J, Wei P, Tu SJ, Li G. Catalytic Dual 1,1-H-Abstraction/Insertion for Domino Spirocyclizations. J Am Chem Soc 2015; 137:8928-31. [DOI: 10.1021/jacs.5b05735] [Citation(s) in RCA: 173] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jiang-Kai Qiu
- School of Chemistry
and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic
Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
- Biotechnology and
Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, Jiangsu, P. R. China
| | - Bo Jiang
- School of Chemistry
and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic
Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Yi-Long Zhu
- School of Chemistry
and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic
Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
- Biotechnology and
Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, Jiangsu, P. R. China
| | - Wen-Juan Hao
- School of Chemistry
and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic
Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - De-Cai Wang
- Biotechnology and
Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, Jiangsu, P. R. China
| | - Jun Sun
- School of Chemistry
and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic
Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
- Biotechnology and
Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, Jiangsu, P. R. China
| | - Ping Wei
- Biotechnology and
Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, Jiangsu, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry
and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic
Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing, 210093, P. R. China
- Department of Chemistry
and Biochemistry, Texas Tech University, Lubbock, Texas 79409−1061, United States
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23
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Kise N, Miyamoto H, Hamada Y, Sakurai T. Electroreductive coupling of 1,3-dimethyluracils with aromatic ketones: synthesis of 6-substituted 1,3-dimethyluracils. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.113] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Just-Baringo X, Procter DJ. Sm(II)-Mediated Electron Transfer to Carboxylic Acid Derivatives: Development of Complexity-Generating Cascades. Acc Chem Res 2015; 48:1263-75. [PMID: 25871998 DOI: 10.1021/acs.accounts.5b00083] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Reductive electron transfer (ET) to organic compounds is a powerful method for the activation of substrates via the formation of radicals, radical anions, anions, and dianions that can be exploited in bond-cleaving and bond-forming processes. Since its introduction to the synthetic community in 1977 by Kagan, SmI2 has become one of the most important reducing agents available in the laboratory. Despite its widespread application in aldehyde and ketone reduction, it was widely accepted that carboxylic acid derivatives could not be reduced by SmI2; only recently has our work led to this dogma being overturned, and the reduction of carboxylic acid derivatives using SmI2 can now take its place alongside aldehyde/ketone reduction as a powerful activation mode for synthesis. In this Account, we set out our studies of the reduction of carboxylic acid derivatives using SmI2, SmI2-H2O, and SmI2-H2O-NR3 and the exploitation of the unusual radical anions that are now accessible in unprecedented carbon-carbon bond-forming processes. The Account begins with our serendipitous discovery that SmI2 mixed with H2O is able to reduce six-membered lactones to diols, a transformation previously thought to be impossible. After the successful development of selective monoreductions of Meldrum's acid and barbituric acid heterocyclic feedstocks, we then identified the SmI2-H2O-NR3 reagent system for the efficient reduction of a range of acyclic carboxylic acid derivatives that typically present a significant challenge for ET reductants. Mechanistic studies have led us to propose a common mechanism for the reduction of carboxylic acid derivatives using Sm(II), with only subtle changes observed as the carboxylic acid derivative and Sm(II) reagent system are varied. At the center of our postulated mechanism is the proposed reversibility of the first ET to the carbonyl of carboxylic acid derivatives, and this led us to devise several strategies that allow the radical anion intermediates to be exploited productively in efficient new processes. First, we have used internal directing groups in substrates to "switch on" productive ET to esters and amides and have exploited such an approach in tag-removal cyclization processes that deliver molecular scaffolds of significance in biology and materials science. Second, we have exploited external ligands to facilitate ET to carboxylic acid derivatives and have applied the strategy in telescoped reaction sequences. Finally, we have employed follow-up cyclizations with alkenes, alkynes, and allenes to intercept radical anion intermediates formed along the reaction path and have employed this strategy in complexity-generating cascade approaches to biologically significant molecular architectures. From our studies, it is now clear that Sm(II)-mediated ET to carboxylic acid derivatives constitutes a general strategy for inverting the polarity of the carbonyl, allowing nucleophilic carbon-centered radicals to be formed and exploited in novel chemical processes.
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Affiliation(s)
| | - David J. Procter
- School of Chemistry, University of Manchester, Manchester M13 9PL, U.K
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