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Ponnapalli KK, Kawade SK, Adak AK, Wu H, Lin C. Synthesis of biologically important
4‐Phenyl‐
C
‐glycosyl‐1,2,3‐triazole derivatives by Cu(I)‐catalyzed azide–alkyne cycloaddition. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202000452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Sachin K. Kawade
- Department of Chemistry National Tsing Hua University Hsinchu Taiwan
| | - Avijit K. Adak
- Department of Chemistry National Tsing Hua University Hsinchu Taiwan
| | - Hsin‐Ru Wu
- Instrumentation Center National Tsing Hua University Hsinchu Taiwan
| | - Chun‐Cheng Lin
- Department of Chemistry National Tsing Hua University Hsinchu Taiwan
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung Taiwan
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2
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Galve I, Ondoño R, de Rocafiguera C, Puig de la Bellacasa R, Batllori X, Puigjaner C, Font-Bardia M, Vallcorba O, Teixidó J, Borrell JI. A captured room temperature stable Wheland intermediate as a key structure for the orthogonal decoration of 4-amino-pyrido[2,3- d]pyrimidin-7(8 H)-ones. Org Biomol Chem 2020; 18:9810-9815. [PMID: 33000855 DOI: 10.1039/d0ob01785j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Wheland intermediates are usually unstable compounds and only a few have been isolated at very low temperatures. During our work on tyrosine kinase inhibitors, we studied the bromination of 7 in order to obtain a dibromo substituted pyrido[2,3-d]pyrimidin-7(8H)-one which could be orthogonally decorated. Surprisingly, treatment of 7 with 3 equiv. of Br2 in acetic acid (AcOH) afforded 12, a captured room temperature stable Wheland bromination intermediate stabilized by the bromination of the imino tautomer of the amino group at C4 of the pyridopyrimidine skeleton. The structure was confirmed by crystal structure determination from powder X-ray diffraction data. Treatment of 12 with DMSO afforded the dibromo substituted compound 13 presenting a bromine atom at C6 and C5-C6 unsaturation. 13 was directly accessed by treating 7 with N-bromosuccinimide (NBS), a protocol extended to other compounds using NBS or N-iodosuccinimide (NIS) to afford 6-halo substituted systems. 26, bearing an iodine at C6 and a p-bromophenylamino at C2, allows the orthogonal decoration of pyridopyrimidines.
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Affiliation(s)
- Iñaki Galve
- Grup de Química Farmacèutica, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, E-08017 Barcelona, Spain.
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3
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Yang T, Wang W, Wei D, Zhang T, Han B, Yu W. Synthesis of quinazolinones via radical cyclization of α-azidyl benzamides. Org Chem Front 2017. [DOI: 10.1039/c6qo00656f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Under visible light irradiation with N-bromosuccinimide, α-azidyl benzamides can be transformed into quinazolinones in high efficiency via cascade radical processes.
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Affiliation(s)
- Tonghao Yang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Weixia Wang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Dian Wei
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Tianqi Zhang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
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Samadi A, Silva D, Chioua M, Infantes L, Soriano E, Marco-Contelles J. The reaction of 2-amino-4H-pyrans with N-bromosuccinimide. Mol Divers 2014; 19:103-22. [PMID: 25502233 DOI: 10.1007/s11030-014-9560-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 11/25/2014] [Indexed: 11/25/2022]
Abstract
The reaction of racemic 2-amino-4H-pyrans, such as 3-amino-1-aryl-1H-benzo[f]chromene-2-carbonitriles, with N-bromosuccinimide (NBS), in CH2Cl2, at room temperature, is a very quick, regio, stereoselective, and high yielding process, affording major racemic (1S, 2S)-2-bromo-3-imino-benzo[f]chromene or racemic (1S, 2S)-2-bromo-3-(bromoimino)-benzo[f]chromene derivatives, when using 1.0 or 2.2 equivalents of NBS, respectively. This reaction, extended to isomeric 2-amino-4-aryl-4H-benzo[h]chromene-3-carbonitriles, showed an unexpected reactivity, affording racemic (3S,4S)-3-bromo-2-(bromoimino)-benzo[h]chromene-3-carbonitriles or 2-oxo-2H-benzo[h]chromene-3-carbonitriles, when using 2.2 or 1.0 equivalents of NBS, respectively. The reaction of alkyl 6-amino-5-cyano-2-methyl-4H-pyran-3-carboxylates has yielded unstable racemic (3S,4S)-alkyl 3-bromo-2-(bromoimino)-3-cyano-6-methyl-3,4-dihydro-2H-pyran-5-carboxylates. The mechanism of these reactions has been investigated by computational methods.
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Affiliation(s)
- Abdelouahid Samadi
- Laboratorio de Química Médica, IQOG (CSIC), Juan de la Cierva, 3, 28006, Madrid, Spain,
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Li ZS, Wang WX, Yang JD, Wu YW, Zhang W. Photoinduced and N-Bromosuccinimide-Mediated Cyclization of 2-Azido-N-phenylacetamides. Org Lett 2013; 15:3820-3. [DOI: 10.1021/ol401338e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhan-Shan Li
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wei-Xia Wang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ji-Dong Yang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yue-Wei Wu
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wei Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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Gushchin PV, Kuznetsov ML, Haukka M, Kukushkin VY. Recognition of a Novel Type X═N–Hal···Hal (X = C, S, P; Hal = F, Cl, Br, I) Halogen Bonding. J Phys Chem A 2013; 117:2827-34. [DOI: 10.1021/jp3112149] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Pavel V. Gushchin
- Department of Chemistry, Saint Petersburg State University, 198504 Stary Petergof,
Russian Federation
| | - Maxim L. Kuznetsov
- Centro
de Química Estrutural,
Complexo I, Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001
Lisbon, Portugal
| | - Matti Haukka
- Department
of Chemistry, University of Jyväskylä, P.O. Box 35,
FI-40014, Jyväskylä, Finland
| | - Vadim Yu. Kukushkin
- Department of Chemistry, Saint Petersburg State University, 198504 Stary Petergof,
Russian Federation
- Institute of Macromolecular Compounds of Russian Academy of Sciences, V. O. Bolshoii
Pr. 31, 199004, Saint Petersburg, Russian Federation
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7
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Benoist E, Coulais Y, Almant M, Kovensky J, Moreau V, Lesur D, Artigau M, Picard C, Galaup C, Gouin SG. A Click procedure with heterogeneous copper to tether technetium-99m chelating agents and rhenium complexes. Evaluation of the chelating properties and biodistribution of the new radiolabelled glucose conjugates. Carbohydr Res 2011; 346:26-34. [DOI: 10.1016/j.carres.2010.10.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 10/07/2010] [Accepted: 10/10/2010] [Indexed: 10/18/2022]
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Bellale EV, Bhalerao DS, Akamanchi KG. Oxidative Conversion of α,α-Disubstituted Acetamides to Corresponding One-Carbon-Shorter Ketones Using Hypervalent Iodine (λ5) Reagents in Combination with Tetraethylammonium Bromide. J Org Chem 2008; 73:9473-5. [DOI: 10.1021/jo801580g] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eknath V. Bellale
- Department of Pharmaceutical Sciences & Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400 019, India
| | - Dinesh S. Bhalerao
- Department of Pharmaceutical Sciences & Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400 019, India
| | - Krishnacharya G. Akamanchi
- Department of Pharmaceutical Sciences & Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400 019, India
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Praly JP, Hetzer G, Steng M. A New Sugar-Derived Tetrahydrothiazepine Obtained by Thermolysis from Peracetylated 5-Thio-D-Xylopyranosyl Azides. J Carbohydr Chem 2008. [DOI: 10.1080/07328309908544038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Jean-Pierre Praly
- a Unité Mixte de Recherches CNRS-Université Claude-Bernard Lyon 1 n°5622 CPE-Lyon , Bât. 308 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, (France)
- b Unité Mixte de Recherches CNRS-Université Claude-Bernard Lyon 1 n°5622 CPE-Lyon , Bât. 308 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, (France)
- c Unité Mixte de Recherches CNRS-Université Claude-Bernard Lyon 1 n°5622 CPE-Lyon , Bât. 308 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, (France)
| | - Georg Hetzer
- a Unité Mixte de Recherches CNRS-Université Claude-Bernard Lyon 1 n°5622 CPE-Lyon , Bât. 308 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, (France)
- b Unité Mixte de Recherches CNRS-Université Claude-Bernard Lyon 1 n°5622 CPE-Lyon , Bât. 308 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, (France)
- c Unité Mixte de Recherches CNRS-Université Claude-Bernard Lyon 1 n°5622 CPE-Lyon , Bât. 308 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, (France)
| | - Michaela Steng
- a Unité Mixte de Recherches CNRS-Université Claude-Bernard Lyon 1 n°5622 CPE-Lyon , Bât. 308 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, (France)
- b Unité Mixte de Recherches CNRS-Université Claude-Bernard Lyon 1 n°5622 CPE-Lyon , Bât. 308 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, (France)
- c Unité Mixte de Recherches CNRS-Université Claude-Bernard Lyon 1 n°5622 CPE-Lyon , Bât. 308 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne, (France)
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Ahmad SM, Braddock DC, Cansell G, Hermitage SA, Redmond JM, White AJ. Amidines as potent nucleophilic organocatalysts for the transfer of electrophilic bromine from N-bromosuccinimide to alkenes. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.06.112] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Photolysis of glycopyranosyl azides C-1 substituted by cyano-, amido-, or tetrazolyl-groups. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s0957-4166(99)00543-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Praly JP, Stèfano CD, Descotes G, Faure R, Somsák L, Eperjesi I. Preparation and photolysis of 1-cyano-glycopyranosyl azides. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)00520-m] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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