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Marbán-González A, Maravilla-Moreno G, Vazquez-Chavez J, Hernández-Rodríguez M, Razo-Hernández RS, Ordóñez M, Viveros-Ceballos JL. Stereocontrolled Synthesis of Enantiopure cis-Fused Octahydroisoindolones via Chiral Oxazoloisoindolone Lactams. J Org Chem 2021; 86:16361-16368. [PMID: 34738814 DOI: 10.1021/acs.joc.1c01757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Kinetically controlled cyclocondensation of stereoisomeric and ring-chain tautomeric mixture of (±)-hydroxylactone 1 and 0.5 equiv of (R)-phenylglycinol provided tricyclic oxazoloisoindolone lactam (3R,5aS,9aR,9bS)-2a, a versatile intermediate for further stereocontrolled transformations to access enantiopure cis-fused octahydroisoindolones. An extension of this methodology was successfully applied to the synthesis of the 5,6-dihydroxy derivative (3aR,5R,6S,7aS)-17.
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Affiliation(s)
- Alberto Marbán-González
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
| | - Gaspar Maravilla-Moreno
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
| | - Josué Vazquez-Chavez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Coyoacán, Mexico City, Mexico
| | - Marcos Hernández-Rodríguez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Coyoacán, Mexico City, Mexico
| | - Rodrigo Said Razo-Hernández
- Centro de Investigación en Dinámica Celular-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
| | - Mario Ordóñez
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
| | - José Luis Viveros-Ceballos
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
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Greener Synthesis of Pristane by Flow Dehydrative Hydrogenation of Allylic Alcohol Using a Packed-Bed Reactor Charged by Pd/C as a Single Catalyst. Molecules 2021; 26:molecules26195845. [PMID: 34641390 PMCID: PMC8510359 DOI: 10.3390/molecules26195845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/15/2021] [Accepted: 09/23/2021] [Indexed: 11/21/2022] Open
Abstract
Our previous work established a continuous-flow synthesis of pristane, which is a saturated branched alkane obtained from a Basking Shark. The dehydration of an allylic alcohol that is the key to a tetraene was carried out using a packed-bed reactor charged by an acid–silica catalyst (HO-SAS) and flow hydrogenation using molecular hydrogen via a Pd/C catalyst followed. The present work relies on the additional propensity of Pd/C to serve as an acid catalyst, which allows us to perform a flow synthesis of pristane from the aforementioned key allylic alcohol in the presence of molecular hydrogen using Pd/C as a single catalyst, which is applied to both dehydration and hydrogenation. The present one-column-two-reaction-flow system could eliminate the use of an acid catalyst such as HO-SAS and lead to a significant simplification of the production process.
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Gambacorta G, Sharley JS, Baxendale IR. A comprehensive review of flow chemistry techniques tailored to the flavours and fragrances industries. Beilstein J Org Chem 2021; 17:1181-1312. [PMID: 34136010 PMCID: PMC8182698 DOI: 10.3762/bjoc.17.90] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/22/2021] [Indexed: 12/28/2022] Open
Abstract
Due to their intrinsic physical properties, which includes being able to perform as volatile liquids at room and biological temperatures, fragrance ingredients/intermediates make ideal candidates for continuous-flow manufacturing. This review highlights the potential crossover between a multibillion dollar industry and the flourishing sub-field of flow chemistry evolving within the discipline of organic synthesis. This is illustrated through selected examples of industrially important transformations specific to the fragrances and flavours industry and by highlighting the advantages of conducting these transformations by using a flow approach. This review is designed to be a compendium of techniques and apparatus already published in the chemical and engineering literature which would constitute a known solution or inspiration for commonly encountered procedures in the manufacture of fragrance and flavour chemicals.
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Affiliation(s)
- Guido Gambacorta
- Department of Chemistry, University of Durham, Stockton Road, Durham, DH1 3LE, United Kingdom
| | - James S Sharley
- Department of Chemistry, University of Durham, Stockton Road, Durham, DH1 3LE, United Kingdom
| | - Ian R Baxendale
- Department of Chemistry, University of Durham, Stockton Road, Durham, DH1 3LE, United Kingdom
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Klarner M, Bieger S, Drechsler M, Kempe R. Chemoselective Hydrogenation of Olefins Using a Nanostructured Nickel Catalyst. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mara Klarner
- Inorganic Chemistry II University of Bayreuth Universitätsstraße 30 95440 Bayreuth Germany
| | - Sandra Bieger
- Inorganic Chemistry II University of Bayreuth Universitätsstraße 30 95440 Bayreuth Germany
| | - Markus Drechsler
- Bavarian Polymer Institute (BPI) KeyLab “Electron and Optical Microscopy” University of Bayreuth Universitätsstraße 30 95440 Bayreuth Germany
| | - Rhett Kempe
- Inorganic Chemistry II University of Bayreuth Universitätsstraße 30 95440 Bayreuth Germany
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Yu T, Jiao J, Song P, Nie W, Yi C, Zhang Q, Li P. Recent Progress in Continuous-Flow Hydrogenation. CHEMSUSCHEM 2020; 13:2876-2893. [PMID: 32301233 DOI: 10.1002/cssc.202000778] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Indexed: 06/11/2023]
Abstract
To achieve a safe, efficient, and sustainable (even fully automated) production for the continuous-flow hydrogenation reactions, which is among the most often used reactions in chemical synthesis, new catalyst types and immobilization methods as well as flow reactors and technologies have been developed over the last years; in addition, these approaches have been combined with new and transformational technologies in other fields such as artificial intelligence. Thus, attention from academic and industry practitioners has increasingly focused on improving the performance of hydrogenation in flow mode by reducing the reaction times, increasing selectivities, and achieve safe operation. This Minireview aims to summarize the most recent research results on this topic with focus on the advantages, current limitations, and future directions of flow chemistry.
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Affiliation(s)
- Tao Yu
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, 710049, P.R. China
| | - Jiao Jiao
- Departement of Chemistry, School of Science, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
- Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Peidong Song
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, 710049, P.R. China
| | - Wenzheng Nie
- Departement of Chemistry, School of Science, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Chunhai Yi
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Qian Zhang
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, 710048, P. R. China
| | - Pengfei Li
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, 710049, P.R. China
- Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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Bai‐cheng F, Xi‐chao H, Tie‐lin W, Jian‐qiang L, Yan J. Synthesis of Bicyclic Esters in a Continuous‐Flow Microreactor. ChemistrySelect 2020. [DOI: 10.1002/slct.201903919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Feng Bai‐cheng
- College of Chemical EngineeringQingdao University of Science and Technology, State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao Shandong China 266042
| | - Hou Xi‐chao
- College of Chemical EngineeringQingdao University of Science and Technology, State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao Shandong China 266042
| | - Wang Tie‐lin
- College of Chemical EngineeringQingdao University of Science and Technology, State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao Shandong China 266042
| | - Lu Jian‐qiang
- College of Chemical EngineeringQingdao University of Science and Technology, State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao Shandong China 266042
| | - Jin Yan
- College of Chemical EngineeringQingdao University of Science and Technology, State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao Shandong China 266042
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Kim HW, Byun S, Kim SM, Kim HJ, Lei C, Kang DY, Cho A, Kim BM, Park JK. Simple reversible fixation of a magnetic catalyst in a continuous flow system: ultrafast reduction of nitroarenes and subsequent reductive amination using ammonia borane. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02021g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Continuous reductive amination was performed using NH3BH3 through reversible magnetic bimetallic fixation at room temperature.
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Affiliation(s)
- Hong Won Kim
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Sangmoon Byun
- Department of Chemistry
- Seoul National University
- Seoul 08826
- Korea
| | - Seong Min Kim
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Ha Joon Kim
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Cao Lei
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Dong Yun Kang
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
| | - Ahra Cho
- Department of Chemistry
- Seoul National University
- Seoul 08826
- Korea
| | - B. Moon Kim
- Department of Chemistry
- Seoul National University
- Seoul 08826
- Korea
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute of Functional Materials
- Pusan National University
- Busan 46241
- Korea
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