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Chau Nguyen K, Nguyen Tran AT, Wang P, Zhang S, Wu Z, Taniguchi M, Lindsey JS. Four Routes to 3-(3-Methoxy-1,3-dioxopropyl)pyrrole, a Core Motif of Rings C and E in Photosynthetic Tetrapyrroles. Molecules 2023; 28:molecules28031323. [PMID: 36770988 PMCID: PMC9920783 DOI: 10.3390/molecules28031323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 01/23/2023] [Indexed: 02/03/2023] Open
Abstract
The photosynthetic tetrapyrroles share a common structural feature comprised of a β-ketoester motif embedded in an exocyclic ring (ring E). As part of a total synthesis program aimed at preparing native structures and analogues, 3-(3-methoxy-1,3-dioxopropyl)pyrrole was sought. The pyrrole is a precursor to analogues of ring C and the external framework of ring E. Four routes were developed. Routes 1-3 entail a Pd-mediated coupling process of a 3-iodopyrrole with potassium methyl malonate, whereas route 4 relies on electrophilic substitution of TIPS-pyrrole with methyl malonyl chloride. Together, the four routes afford considerable latitude. A long-term objective is to gain the capacity to create chlorophylls and bacteriochlorophylls and analogues thereof by facile de novo means for diverse studies across the photosynthetic sciences.
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Kandasamy M, Ishitani H, Kobayashi S. Continuous‐Flow Synthesis of β‐Ketoesters and Successive Reactions in One‐Flow using Heterogeneous Catalysis. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200602] [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]
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Chen J, Joseph D, Xia Y, Lee S. Amide/Ester Cross-Coupling via C–N/C–H Bond Cleavage: Synthesis of β-Ketoesters. J Org Chem 2021; 86:5943-5953. [DOI: 10.1021/acs.joc.0c02868] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jiajia Chen
- Department of Chemistry Chonnam National University, Gwangju 61186, Republic of Korea
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, People’s Republic of China
| | - Devaneyan Joseph
- Department of Chemistry Chonnam National University, Gwangju 61186, Republic of Korea
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, People’s Republic of China
| | - Sunwoo Lee
- Department of Chemistry Chonnam National University, Gwangju 61186, Republic of Korea
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Shaifali, Sheetal, Bains R, Kumar A, Ram S, Das P. Supported palladium catalyzed aminocarbonylation of aryl iodides employing bench-stable CO and NH 3 surrogates. Org Biomol Chem 2020; 18:7193-7200. [PMID: 32901651 DOI: 10.1039/d0ob01445a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple, efficient and phosphine free protocol for carbonylative synthesis of primary aromatic amides under polystyrene supported palladium (Pd@PS) nanoparticle (NP) catalyzed conditions has been demonstrated. Herein, instead of using two toxic and difficult to handle gases simultaneously, we have employed the solid, economical, bench stable oxalic acid as the CO source and ammonium carbamate as the NH3 source in a single pot reaction. For the first time, we have applied two non-gaseous surrogates simultaneously under heterogeneous catalyst (Pd@PS) conditions for the synthesis of primary amides using an easy to handle double-vial (DV) system. The developed strategy showed a good functional group tolerance towards a wide range of aryl iodides and afforded primary aromatic amides in good yields. The Pd@PS catalyst was easy to separate and can be recycled up to four consecutive runs with small loss in catalytic activity. We have successfully extended the scope of the methodology to the synthesis of isoindole-1,3-diones from 1,2-dihalobenzene, 2-halobenzoates and 2-halobenzoic acid following double and single carbonylative cyclization approaches.
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Affiliation(s)
- Shaifali
- Natural Product Chemistry and Process Development, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India. and Academy of Scientific & Innovative Research, New Delhi 112005, India
| | - Sheetal
- Natural Product Chemistry and Process Development, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India. and Academy of Scientific & Innovative Research, New Delhi 112005, India
| | - Rohit Bains
- Natural Product Chemistry and Process Development, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India. and Academy of Scientific & Innovative Research, New Delhi 112005, India
| | - Ajay Kumar
- Natural Product Chemistry and Process Development, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India. and Academy of Scientific & Innovative Research, New Delhi 112005, India
| | - Shankar Ram
- Natural Product Chemistry and Process Development, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India. and Academy of Scientific & Innovative Research, New Delhi 112005, India
| | - Pralay Das
- Natural Product Chemistry and Process Development, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India. and Academy of Scientific & Innovative Research, New Delhi 112005, India
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Gaikwad VV, Mane PA, Dey S, Bhanage BM. Dppf‐Ligated Palladium Complex as an Efficient Catalyst for the Synthesis of Biaryl Ketones Using Co
2
(CO)
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as a C1 Source with High TON and TOF. ChemistrySelect 2019. [DOI: 10.1002/slct.201901930] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Vinayak V. Gaikwad
- Department of Chemistry, Institute of Chemical TechnologyN.Parekh Marg, Matunga, Mumbai 400 019 Maharashtra India)
| | - Pravin A. Mane
- Chemistry Division, Bhabha Atomic Research Centre Mumbai 400 085 India
| | - Sandip Dey
- Chemistry Division, Bhabha Atomic Research Centre Mumbai 400 085 India
- Homi Bhabha National InstituteTraining School Complex Mumbai 400 094 India
| | - Bhalchandra M. Bhanage
- Department of Chemistry, Institute of Chemical TechnologyN.Parekh Marg, Matunga, Mumbai 400 019 Maharashtra India)
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Liu R, Liu M, Hood D, Chen CY, MacNevin CJ, Holten D, Lindsey JS. Chlorophyll-Inspired Red-Region Fluorophores: Building Block Synthesis and Studies in Aqueous Media. Molecules 2018; 23:molecules23010130. [PMID: 29320445 PMCID: PMC6017558 DOI: 10.3390/molecules23010130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/04/2018] [Accepted: 01/06/2018] [Indexed: 02/04/2023] Open
Abstract
Fluorophores that absorb and emit in the red spectral region (600-700 nm) are of great interest in photochemistry and photomedicine. Eight new target chlorins (and 19 new chlorins altogether)-analogues of chlorophyll-of different polarities have been designed and synthesized for various applications; seven of the chlorins are equipped with a bioconjugatable tether. Hydrophobic or amphiphilic chlorins in a non-polar organic solvent (toluene), polar organic solvent (DMF), and aqueous or aqueous micellar media show a sharp emission band in the red region and modest fluorescence quantum yield (Φf = 0.2-0.3). A Poisson analysis implies most micelles are empty and few contain >1 chlorin. Water-soluble chlorins each bearing three PEG (oligoethyleneglycol) groups exhibit narrow emission bands (full-width-at-half maximum <25 nm). The lifetime of the lowest singlet excited state and the corresponding yields and rate constants for depopulation pathways (fluorescence, intersystem crossing, internal conversion) are generally little affected by the PEG groups or dissolution in aqueous or organic media. A set of chlorin-avidin conjugates revealed a 2-fold increase in Φf with increased average chlorin/avidin ratio (2.3-12). In summary, the chlorins of various polarities described herein are well suited as red-emitting fluorophores for applications in aqueous or organic media.
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Affiliation(s)
- Rui Liu
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA; (R.L.); (M.L.)
| | - Mengran Liu
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA; (R.L.); (M.L.)
| | - Don Hood
- Department of Chemistry, Washington University, St. Louis, MO 63130-4889, USA;
| | - Chih-Yuan Chen
- NIRvana Sciences, Inc., Research Triangle Park, NC 27709, USA; (C.-Y.C.); (C.J.M.)
| | | | - Dewey Holten
- Department of Chemistry, Washington University, St. Louis, MO 63130-4889, USA;
- Correspondence: (D.H.); (J.S.L.); Tel.: +1-314-935-6502 (D.H.); +1-919-515-6406 (J.S.L.)
| | - Jonathan S. Lindsey
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA; (R.L.); (M.L.)
- Correspondence: (D.H.); (J.S.L.); Tel.: +1-314-935-6502 (D.H.); +1-919-515-6406 (J.S.L.)
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Zhang S, Lindsey JS. Construction of the Bacteriochlorin Macrocycle with Concomitant Nazarov Cyclization To Form the Annulated Isocyclic Ring: Analogues of Bacteriochlorophyll a. J Org Chem 2017; 82:2489-2504. [DOI: 10.1021/acs.joc.6b02878] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shaofei Zhang
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Jonathan S. Lindsey
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
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Joseph JT, Sajith AM, Ningegowda RC, Shashikanth S. Room Temperature Carbonylation of (Hetero) Aryl Pentafluorobenzenesulfonates and Triflates using Palladium-Cobalt Bimetallic Catalyst: Dual Role of Cobalt Carbonyl. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600736] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jayan T. Joseph
- Department of Studies in Chemistry, Manasagangothri; University of Mysore; Mysore - 570006 India
- Syngene International Ltd., Biocon Park; Bommasandra IV Phase; Jigani Link Road Bangalore - 560099 India
| | - Ayyiliath M. Sajith
- Syngene International Ltd., Biocon Park; Bommasandra IV Phase; Jigani Link Road Bangalore - 560099 India
| | - Revanna C. Ningegowda
- Syngene International Ltd., Biocon Park; Bommasandra IV Phase; Jigani Link Road Bangalore - 560099 India
| | - Sheena Shashikanth
- Department of Studies in Chemistry, Manasagangothri; University of Mysore; Mysore - 570006 India
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Tarigopula C, Thota GK, Balamurugan R. Efficient Synthesis of Functionalized β-Keto Esters and β-Diketones through Regioselective Hydration of Alkynyl Esters and Alkynyl Ketones by Use of a Cationic NHC-AuICatalyst. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Ganesh Kumar Thota
- School of Chemistry; University of Hyderabad; Gachibowli 500046 Hyderabad INDIA
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11
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Yue H, Yu H, Liu S, Xu C. Ag–Cu nanoparticles as efficient catalysts for transesterification of β-keto esters under acid/base-free conditions. RSC Adv 2016. [DOI: 10.1039/c6ra00467a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
For the first time transesterification of β-keto esters, conventional acid- or base-catalyzed reactions, has been catalyzed by Ag–Cu bimetallic nanoparticles with high activity.
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Affiliation(s)
- Hongmei Yue
- Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University)
- Ministry of Education
- Xi'an 710119
- PR China
- School of Chemistry and Chemical Engineering
| | - Hao Yu
- Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University)
- Ministry of Education
- Xi'an 710119
- PR China
- School of Chemistry and Chemical Engineering
| | - Sheng Liu
- Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University)
- Ministry of Education
- Xi'an 710119
- PR China
- School of Chemistry and Chemical Engineering
| | - Chunli Xu
- Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University)
- Ministry of Education
- Xi'an 710119
- PR China
- School of Chemistry and Chemical Engineering
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12
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Suresh A, Baburajan P, Ahmed M. Synthesis of primary amides by aminocarbonylation of aryl/hetero halides using non-gaseous NH3 and CO sources. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.06.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Baburajan P, Elango KP. One-Pot Synthesis of 2-Arylbenzoxazoles by Gas-Free Carbonylation using Dicobalt Octacarbonyl as a Solid Carbon Monoxide Source. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201402252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Gautam P, Bhanage BM. Recent advances in the transition metal catalyzed carbonylation of alkynes, arenes and aryl halides using CO surrogates. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00691k] [Citation(s) in RCA: 195] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Transition metal catalyzed carbonylation reactions using carbon monoxide as the C-1 source have occupied an all important position in catalysis which is subsequently related to organic synthesis and industrial synthesis of molecules.
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Affiliation(s)
- Prashant Gautam
- Department of Chemistry
- Institute of Chemical Technology
- N. P. Marg
- Mumbai
- India
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15
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Sumino S, Ui T, Ryu I. Synthesis of aromatic β-keto esters via a carbonylative Suzuki–Miyaura coupling reaction of α-iodo esters with arylboronic acids. Org Chem Front 2015. [DOI: 10.1039/c5qo00185d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aromatic β-keto esters were synthesized via a carbonylative cross-coupling reaction of alkyl iodides and arylboronic acids in the presence of a catalytic amount of Pd catalyst.
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Affiliation(s)
- Shuhei Sumino
- Department of Chemistry
- Graduate School of Science
- Osaka Prefecture University
- Sakai
- Japan
| | - Takahito Ui
- Department of Chemistry
- Graduate School of Science
- Osaka Prefecture University
- Sakai
- Japan
| | - Ilhyong Ryu
- Department of Chemistry
- Graduate School of Science
- Osaka Prefecture University
- Sakai
- Japan
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