1
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Yang E, Tucker JW, Chappie TA, Weaver JD, Chapman C, Duzguner R, Humphrey JM. Synthesis of a Pyridoazepine Scaffold via Rhodium-Catalyzed Ring Expansion and Nitroacetamide Condensation. Org Process Res Dev 2023. [DOI: 10.1021/acs.oprd.2c00145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Eddie Yang
- Worldwide Research and Development, Pfizer, Inc., Groton, Connecticut 06340, United States
| | - Joseph W. Tucker
- Worldwide Research and Development, Pfizer, Inc., Groton, Connecticut 06340, United States
| | - Thomas A. Chappie
- Worldwide Research and Development, Pfizer, Inc., Cambridge, Massachusetts 02139, United States
| | - John D. Weaver
- Worldwide Research and Development, Pfizer, Inc., Groton, Connecticut 06340, United States
| | - Caroline Chapman
- Pfizer R&D UK Limited, Chemical R&D, Discovery Park, Ramsgate Road, Sandwich, Kent CT13 9NJ, UK
| | - Remzi Duzguner
- Worldwide Research and Development, Pfizer, Inc., Groton, Connecticut 06340, United States
| | - John M. Humphrey
- Worldwide Research and Development, Pfizer, Inc., Groton, Connecticut 06340, United States
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2
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Kitamura M, Eto T, Konai K, Takahashi S, Shimooka H, Okauchi T. Synthesis of Diazoquinones and Azidophenols via Diazo‐transfer Reaction of Phenols. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mitsuru Kitamura
- Kyushu Institute of Technology Department of Applied Chemistry 1-1 Sensui-cho, Tobataku 804-8550 Kitakyushu JAPAN
| | - Takashi Eto
- Kyushu Kogyo Daigaku Department of Applied Chemistry JAPAN
| | | | | | | | - Tatsuo Okauchi
- Kyushu Kogyo Daigaku Department of Applied Chemistry JAPAN
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3
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Green SP, Wheelhouse KM, Payne AD, Hallett JP, Miller PW, Bull JA. On the Use of Differential Scanning Calorimetry for Thermal Hazard Assessment of New Chemistry: Avoiding Explosive Mistakes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sebastian P. Green
- Department of Chemistry Imperial College London Molecular Sciences Research Hub White City Campus, Wood Lane London W12 0BZ UK
- Department of Chemical Engineering Imperial College London South Kensington Campus, Exhibition Road London SW7 2AZ UK
| | - Katherine M. Wheelhouse
- Chemical Development Product Development & Supply GlaxoSmithKline GSK Medicines Research Centre Gunnels Wood Road Stevenage Hertfordshire SG1 2NY UK
| | - Andrew D. Payne
- Process Safety Clinical Supply Chain GlaxoSmithKline GSK Medicines Research Centre Gunnels Wood Road Stevenage Hertfordshire SG1 2NY UK
| | - Jason P. Hallett
- Department of Chemical Engineering Imperial College London South Kensington Campus, Exhibition Road London SW7 2AZ UK
| | - Philip W. Miller
- Department of Chemistry Imperial College London Molecular Sciences Research Hub White City Campus, Wood Lane London W12 0BZ UK
| | - James A. Bull
- Department of Chemistry Imperial College London Molecular Sciences Research Hub White City Campus, Wood Lane London W12 0BZ UK
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4
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Green SP, Wheelhouse KM, Payne AD, Hallett JP, Miller PW, Bull JA. On the Use of Differential Scanning Calorimetry for Thermal Hazard Assessment of New Chemistry: Avoiding Explosive Mistakes. Angew Chem Int Ed Engl 2020; 59:15798-15802. [PMID: 32893978 DOI: 10.1002/anie.202007028] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Indexed: 01/05/2023]
Abstract
Differential scanning calorimetry (DSC) is increasingly used as evidence to support a favourable safety profile of novel chemistry, or to highlight the need for caution. DSC enables preliminary assessment of the thermal hazards of a potentially energetic compound. However, unlike other standard characterisation methods, which have well defined formats for reporting data, the current reporting of DSC results for thermal hazard assessment has shown concerning trends. Around half of all results in 2019 did not include experimental details required to replicate the procedure. Furthermore, analysis for thermal hazard assessment is often only conducted in unsealed crucibles, which could lead to misleading results and dangerously incorrect conclusions. We highlight the specific issues with DSC analysis of hazardous compounds currently in the organic chemistry literature and provide simple "best practice" guidelines which will give chemists confidence in reported DSC results and the conclusions drawn from them.
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Affiliation(s)
- Sebastian P Green
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK.,Department of Chemical Engineering, Imperial College London, South Kensington Campus, Exhibition Road, London, SW7 2AZ, UK
| | - Katherine M Wheelhouse
- Chemical Development, Product Development & Supply, GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK
| | - Andrew D Payne
- Process Safety, Clinical Supply Chain, GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK
| | - Jason P Hallett
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, Exhibition Road, London, SW7 2AZ, UK
| | - Philip W Miller
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK
| | - James A Bull
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK
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5
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Green SP, Wheelhouse KM, Payne AD, Hallett JP, Miller PW, Bull JA. Thermal Stability and Explosive Hazard Assessment of Diazo Compounds and Diazo Transfer Reagents. Org Process Res Dev 2019; 24:67-84. [PMID: 31983869 PMCID: PMC6972035 DOI: 10.1021/acs.oprd.9b00422] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Indexed: 11/29/2022]
Abstract
Despite their wide use in academia as metal-carbene precursors, diazo compounds are often avoided in industry owing to concerns over their instability, exothermic decomposition, and potential explosive behavior. The stability of sulfonyl azides and other diazo transfer reagents is relatively well understood, but there is little reliable data available for diazo compounds. This work first collates available sensitivity and thermal analysis data for diazo transfer reagents and diazo compounds to act as an accessible reference resource. Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and accelerating rate calorimetry (ARC) data for the model donor/acceptor diazo compound ethyl (phenyl)diazoacetate are presented. We also present a rigorous DSC dataset with 43 other diazo compounds, enabling direct comparison to other energetic materials to provide a clear reference work to the academic and industrial chemistry communities. Interestingly, there is a wide range of onset temperatures (T onset) for this series of compounds, which varied between 75 and 160 °C. The thermal stability variation depends on the electronic effect of substituents and the amount of charge delocalization. A statistical model is demonstrated to predict the thermal stability of differently substituted phenyl diazoacetates. A maximum recommended process temperature (T D24) to avoid decomposition is estimated for selected diazo compounds. The average enthalpy of decomposition (ΔH D) for diazo compounds without other energetic functional groups is -102 kJ mol-1. Several diazo transfer reagents are analyzed using the same DSC protocol and found to have higher thermal stability, which is in general agreement with the reported values. For sulfonyl azide reagents, an average ΔH D of -201 kJ mol-1 is observed. High-quality thermal data from ARC experiments shows the initiation of decomposition for ethyl (phenyl)diazoacetate to be 60 °C, compared to that of 100 °C for the common diazo transfer reagent p-acetamidobenzenesulfonyl azide (p-ABSA). The Yoshida correlation is applied to DSC data for each diazo compound to provide an indication of both their impact sensitivity (IS) and explosivity. As a neat substance, none of the diazo compounds tested are predicted to be explosive, but many (particularly donor/acceptor diazo compounds) are predicted to be impact-sensitive. It is therefore recommended that manipulation, agitation, and other processing of neat diazo compounds are conducted with due care to avoid impacts, particularly in large quantities. The full dataset is presented to inform chemists of the nature and magnitude of hazards when using diazo compounds and diazo transfer reagents. Given the demonstrated potential for rapid heat generation and gas evolution, adequate temperature control and cautious addition of reagents that begin a reaction are strongly recommended when conducting reactions with diazo compounds.
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Affiliation(s)
- Sebastian P Green
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K.,Department of Chemical Engineering, Imperial College London, South Kensington Campus, Exhibition Road, London SW7 2AZ, U.K
| | - Katherine M Wheelhouse
- API Chemistry, Product Development & Supply and Process Safety, Pilot Plant Operations, GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Andrew D Payne
- API Chemistry, Product Development & Supply and Process Safety, Pilot Plant Operations, GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Jason P Hallett
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, Exhibition Road, London SW7 2AZ, U.K
| | - Philip W Miller
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - James A Bull
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
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6
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Green SP, Payne AD, Wheelhouse KM, Hallett JP, Miller PW, Bull JA. Diazo-Transfer Reagent 2-Azido-4,6-dimethoxy-1,3,5-triazine Displays Highly Exothermic Decomposition Comparable to Tosyl Azide. J Org Chem 2019; 84:5893-5898. [PMID: 30951630 DOI: 10.1021/acs.joc.9b00269] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
2-Azido-4,6-dimethoxy-1,3,5-triazine (ADT) was reported recently as a new "intrinsically safe" diazo-transfer reagent. This assessment was based on differential scanning calorimetry data indicating that ADT exhibits endothermic decomposition. We present DSC data on ADT that show exothermic decomposition with an initiation temperature ( Tinit) of 159 °C and an enthalpy of decomposition (Δ HD) of -1135 J g-1 (-207 kJ mol-1). We conclude that ADT is potentially explosive and must be treated with caution, being of comparable exothermic magnitude to tosyl azide (TsN3). A maximum recommended process temperature for ADT is 55 °C.
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Affiliation(s)
- Sebastian P Green
- Department of Chemistry, Molecular Sciences Research Hub , Imperial College London , White City Campus, 80 Wood Lane , London W12 0BZ , U.K.,Department of Chemical Engineering , Imperial College London , South Kensington Campus, Exhibition Road , London SW7 2AZ , U.K
| | - Andrew D Payne
- Process Safety, Pilot Plant Operations, GlaxoSmithKline , GSK Medicines Research Centre , Gunnels Wood Road , Stevenage , Hertfordshire SG1 2NY , U.K
| | - Katherine M Wheelhouse
- API Chemistry, Product Development & Supply, GlaxoSmithKline , GSK Medicines Research Centre , Gunnels Wood Road , Stevenage , Hertfordshire SG1 2NY , U.K
| | - Jason P Hallett
- Department of Chemical Engineering , Imperial College London , South Kensington Campus, Exhibition Road , London SW7 2AZ , U.K
| | - Philip W Miller
- Department of Chemistry, Molecular Sciences Research Hub , Imperial College London , White City Campus, 80 Wood Lane , London W12 0BZ , U.K
| | - James A Bull
- Department of Chemistry, Molecular Sciences Research Hub , Imperial College London , White City Campus, 80 Wood Lane , London W12 0BZ , U.K
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Affiliation(s)
- Ritu Arora
- Computational Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Kriti Kashyap
- Computational Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Anshika Mittal
- Computational Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rita Kakkar
- Computational Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
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8
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Xie S, Yan Z, Li Y, Song Q, Ma M. Intrinsically Safe and Shelf-Stable Diazo-Transfer Reagent for Fast Synthesis of Diazo Compounds. J Org Chem 2018; 83:10916-10921. [PMID: 30122034 DOI: 10.1021/acs.joc.8b01587] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a crystalline compound 2-azido-4,6-dimethoxy-1,3,5-triazine (ADT) as an intrinsically safe, highly efficient, and shelf-stable diazo-transfer reagent. Because the decomposition of ADT is an endothermal process (Δ H = 30.3 kJ mol-1), ADT is intrinsically nonexplosive, as proved by thermal, friction, and impact tests. The diazo-transfer reaction based on ADT gives diazo compounds in excellent yields within several minutes at room temperature. ADT is very stable upon >1 year storage under air at room temperature.
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Affiliation(s)
- Shibo Xie
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Innovation Center of Chemistry for Energy Materials), Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Ziqiang Yan
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Innovation Center of Chemistry for Energy Materials), Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Yuanheng Li
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Innovation Center of Chemistry for Energy Materials), Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Qun Song
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Innovation Center of Chemistry for Energy Materials), Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Mingming Ma
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Innovation Center of Chemistry for Energy Materials), Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
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9
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McCaw PG, Buckley NM, Eccles KS, Lawrence SE, Maguire AR, Collins SG. Synthesis of Cyclic α-Diazo-β-keto Sulfoxides in Batch and Continuous Flow. J Org Chem 2017; 82:3666-3679. [PMID: 28272889 DOI: 10.1021/acs.joc.7b00172] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diazo transfer to β-keto sulfoxides to form stable isolable α-diazo-β-keto sulfoxides has been achieved for the first time. Both monocyclic and benzofused ketone derived β-keto sulfoxides were successfully explored as substrates for diazo transfer. Use of continuous flow leads to isolation of the desired compounds in enhanced yields relative to standard batch conditions, with short reaction times, increased safety profile, and potential to scale up.
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Affiliation(s)
- Patrick G McCaw
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Naomi M Buckley
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Kevin S Eccles
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Simon E Lawrence
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Anita R Maguire
- Department of Chemistry and School of Pharmacy, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
| | - Stuart G Collins
- Department of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork , Cork, Ireland
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10
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Kitamura M. Azidoimidazolinium Salts: Safe and Efficient Diazo-transfer Reagents and Unique Azido-donors. CHEM REC 2016; 17:653-666. [PMID: 28000372 DOI: 10.1002/tcr.201600118] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Indexed: 11/06/2022]
Abstract
2-Azido-1,3-dimethylimidazolinium chloride (ADMC) and its corresponding hexafluorophosphate (ADMP) were found to be efficient diazo-transfer reagents to various organic compounds. ADMC was prepared by the reaction of 2-chloro-1,3-dimethylimidazolinium chloride (DMC) and sodium azide. ADMP was isolated as a crystal having good thermal stability and low explosibility. ADMC and ADMP reacted with 1,3-dicarbonyl compounds under mild basic conditions to give 2-diazo-1,3-dicarbonyl compounds in high yields, which were easily isolated in virtue of the high water solubility of the by-products. ADMP showed high diazo-transfer ability to primary amines even in the absence of metal salt such as Cu(II). Using this diazotization approach, various alkyl/aryl azides were directly obtained from their corresponding primary amines in high yields. Furthermore, naphthols reacted with ADMC to give the corresponding diazonaphthoquinones in good to high yields. In addition, 2-azido-1,3-dimethylimidazolinium salts were employed as azide-transfer and migratory amidation reagents.
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Affiliation(s)
- Mitsuru Kitamura
- Department Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu, 804-8550, Japan
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11
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Abstract
A mild, efficient and green method has been developed for diazo transfer to β-ketoesters using polystyrene-supported benzenesulfonyl azide, water as solvent and catalytic base.
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Affiliation(s)
- Elaine Tarrant
- Department of Chemistry
- Analytical and Biological Chemistry Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Ireland
| | - Claire V. O'Brien
- Department of Chemistry
- Analytical and Biological Chemistry Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Ireland
| | - Stuart G. Collins
- Department of Chemistry
- Analytical and Biological Chemistry Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Ireland
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Nicolle SM, Moody CJ. Potassium N-iodo p-toluenesulfonamide (TsNIK, Iodamine-T): a new reagent for the oxidation of hydrazones to diazo compounds. Chemistry 2014; 20:4420-5. [PMID: 24615944 PMCID: PMC4164276 DOI: 10.1002/chem.201304656] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Indexed: 12/03/2022]
Abstract
A new reagent for the oxidation of hydrazones to diazo compounds is described. N-Iodo p-toluenesulfonamide (TsNIK, iodamine-T) allows the preparation of α-diazoesters, α-diazoamides, α-diazoketones and α-diazophosphonates in good yield and in high purity after a simple extractive work-up. α-Diazoesters were also obtained in high yield from the corresponding ketones through a one-pot process of hydrazone formation/oxidation.
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Affiliation(s)
- Simon M Nicolle
- School of Chemistry, University of NottinghamNottingham NG7 2RD (UK), Fax: (+44) 115-951-3564
| | - Christopher J Moody
- School of Chemistry, University of NottinghamNottingham NG7 2RD (UK), Fax: (+44) 115-951-3564
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13
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Kitamura M, Kato S, Yano M, Tashiro N, Shiratake Y, Sando M, Okauchi T. A reagent for safe and efficient diazo-transfer to primary amines: 2-azido-1,3-dimethylimidazolinium hexafluorophosphate. Org Biomol Chem 2014; 12:4397-406. [DOI: 10.1039/c4ob00515e] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Kitamura M. Development of Safe Diazo-transfer Reagent: Synthesis and Reaction of Guanidino Diazonium Salt (Azide Imidazolinium Salt). J SYN ORG CHEM JPN 2014. [DOI: 10.5059/yukigoseikyokaishi.72.14] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Andraos J. Safety/Hazard Indices: Completion of a Unified Suite of Metrics for the Assessment of “Greenness” for Chemical Reactions and Synthesis Plans. Org Process Res Dev 2013. [DOI: 10.1021/op300352w] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- John Andraos
- CareerChem, 504-1129
Don Mills Road, Don Mills, Ontario M3B 2W4, Canada
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Collins SG, O'Sullivan OCM, Kelleher PG, Maguire AR. Design and synthesis of stable α-diazo-β-oxo sulfoxides. Org Biomol Chem 2013; 11:1706-25. [DOI: 10.1039/c3ob27061k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Muthyala MK, Choudhary S, Kumar A. Synthesis of ionic liquid-supported sulfonyl azide and its application in diazotransfer reaction. J Org Chem 2012; 77:8787-91. [PMID: 22958129 DOI: 10.1021/jo301529b] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The paper describes synthesis of a novel ionic liquid-supported sulfonyl azide and its applications as diazotransfer reagent of active methylene compounds as well as deformylative diazo transfer reagent. The diazo compounds were isolated in excellent yields (82-94%) and high purity. The method offers better separation of product and reagent. This method is experimentally simple and mild, and requires very short reaction time.
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Affiliation(s)
- Manoj Kumar Muthyala
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India
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18
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Liu L, Zou Y. Design, synthesis, and imaging study of a photoactive polymer containing aryl substituted diazoketo groups. J Appl Polym Sci 2011. [DOI: 10.1002/app.34512] [Citation(s) in RCA: 6] [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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Chiara JL, Suárez JR. Synthesis of α-Diazo Carbonyl Compounds with the Shelf-Stable Diazo Transfer Reagent Nonafluorobutanesulfonyl Azide. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000846] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Affiliation(s)
- Gerhard Maas
- Institute for Organic Chemistry I, University of Ulm, Albert-Einstein-Allee 11, Ulm, Germany.
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Affiliation(s)
- Raymond E. Conrow
- Alcon Research, Ltd., 6201 South Freeway, Fort Worth, Texas 76134, U.S.A
| | - W. Dennis Dean
- Alcon Research, Ltd., 6201 South Freeway, Fort Worth, Texas 76134, U.S.A
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Caron S, Dugger RW, Ruggeri SG, Ragan JA, Ripin DHB. Large-Scale Oxidations in the Pharmaceutical Industry. Chem Rev 2006; 106:2943-89. [PMID: 16836305 DOI: 10.1021/cr040679f] [Citation(s) in RCA: 531] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stéphane Caron
- Chemical Research and Development, Pfizer Global Research Division, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, USA
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24
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Kim JB, Kim KS. Novel Photobleachable Deep UV Resists Based on Single Component Nonchemically Amplified Resist System. Macromol Rapid Commun 2005. [DOI: 10.1002/marc.200500317] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Green GM, Peet NP, Metz WA. Polystyrene-supported benzenesulfonyl azide: a diazo transfer reagent that is both efficient and safe. J Org Chem 2001; 66:2509-11. [PMID: 11281799 DOI: 10.1021/jo005738d] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- G M Green
- Aventis Pharmaceuticals, Route 202-206, Bridgewater, New Jersey 08807, USA
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McGuiness M, Shechter H. Azidotris(diethylamino)phosphonium bromide: A self-catalyzing diazo transfer reagent. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)97785-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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28
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Baum JS, Shook DA, Davies HML, Smith HD. Diazotransfer Reactions withp-Acetamidobenzenesulfonyl Azide. SYNTHETIC COMMUN 1987. [DOI: 10.1080/00397918708063988] [Citation(s) in RCA: 129] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Monteiro HJ. Preparation of α-Diazo-β-Ketosulfones by Diazo-Transfer Reaction with Anin situGenerated Azidinium Salt. A Safe and Efficient Procedure for the Diazo-Transfer Reaction in Neutral Medium. SYNTHETIC COMMUN 1987. [DOI: 10.1080/00397918708063957] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Nishida A, Shibasaki M, Ikegami S. The efficient synthesis of chiral key intermediates for monobactam antibiotics. Tetrahedron Lett 1984. [DOI: 10.1016/s0040-4039(01)80020-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Rhodium(II) acetate-catalyzed reaction of ethyl 2-diazo-3-oxopent-4-enoates: Simple routes to 4-aryl-2-hydroxy-1-naphthoates and β,β-unsaturated esters. The dianion of ethyl 4-(diethylphosphono)acetoacetate as a propionate homoenolate equivalent. Tetrahedron Lett 1983. [DOI: 10.1016/s0040-4039(00)94110-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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