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Muvvala S, Kumari K, Miriyala V, Mogili P, Chidara S, Maddirala SJ, Saxena A, Behera M. Microwave‐Assisted Reductive Amination of 2‐Carboxybenzaldehydes with Amines for the Synthesis of N‐Substituted Isoindolin‐1‐one. ChemistrySelect 2022. [DOI: 10.1002/slct.202202500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Subhashini Muvvala
- Chemistry services, Aragen Life Sciences, Survey Nos:125 (part) & 126, IDA Mallapur Hyderabad 500076 Telangana State India
- Department of Engineering Chemistry Andhra University Visakhapatnam Andhra Pradesh 530003 India
| | - Krishnaiah Kumari
- Chemistry services, Aragen Life Sciences, Survey Nos:125 (part) & 126, IDA Mallapur Hyderabad 500076 Telangana State India
| | - Venkatesh Miriyala
- Chemistry services, Aragen Life Sciences, Survey Nos:125 (part) & 126, IDA Mallapur Hyderabad 500076 Telangana State India
| | - Padma Mogili
- Department of Engineering Chemistry Andhra University Visakhapatnam Andhra Pradesh 530003 India
| | - Sridhar Chidara
- Chemistry services, Aragen Life Sciences, Survey Nos:125 (part) & 126, IDA Mallapur Hyderabad 500076 Telangana State India
| | - Shambabu Joseph Maddirala
- Chemistry services, Aragen Life Sciences, Survey Nos:125 (part) & 126, IDA Mallapur Hyderabad 500076 Telangana State India
| | - Abhishek Saxena
- Chemistry services, Aragen Life Sciences, Survey Nos:125 (part) & 126, IDA Mallapur Hyderabad 500076 Telangana State India
| | - Manoranjan Behera
- Chemistry services, Aragen Life Sciences, Survey Nos:125 (part) & 126, IDA Mallapur Hyderabad 500076 Telangana State India
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Mubeena S, N M, Annapareddy G, Chen YS, Sarma M, Wong KT. Reversible Fluorescence Switching of Donor–Acceptor Type Bipyridines by Simple Protonation–Deprotonation Equilibria. Aust J Chem 2021. [DOI: 10.1071/ch21054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This article describes the switchable fluorescence of a series of donor–acceptor type 2,2′-bipyridines. The original bipyridine molecules have four protonation sites – two on the amino donor sites and two on the pyridine acceptor cores. These nitrogen-containing sites are selectively protonated by suitable acids and the protonation influences the electronic conjugation and structure of the chromophores. Consequently, the emission characteristics of the molecules are affected, and this behaviour is reversible, i.e. the neutral original species are regenerated by the addition of an equivalent amount of base. The switchable behaviour of these compounds is accompanied by a visible colour change of the relevant solutions.
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Raghavulu K, Gudipati R, Basavaiah K, Rumalla CS, Yennam S, Behera M. Synthesis of novel unnatural α-amino acids (UAAs) containing 7-hydroxy-2,2-dimethyl-chroman using isoxazole as a linker. NEW J CHEM 2021. [DOI: 10.1039/d1nj01985f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and novel method for the preparation of unnatural α-amino acids (UAAs) containing 7-hydroxy-2,2-dimethyl-chroman via a 1,3-di-polar-cyloaddition reaction has been described.
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Affiliation(s)
- K. Raghavulu
- Chemistry Services, Aragen Life Sciences (Formerly known as GVK Biosciences), Plot No. 125 (part)&126, IDA, Mallapur, Hyderabad, Telangana, 500076, India
- Department of Inorganic & Analytical Chemistry, Andhra University, Waltair Junction, Visakhapatnam, Andhra Pradesh, 530003, India
| | - Ramakrishna Gudipati
- Chemistry Services, Aragen Life Sciences (Formerly known as GVK Biosciences), Plot No. 125 (part)&126, IDA, Mallapur, Hyderabad, Telangana, 500076, India
| | - K. Basavaiah
- Department of Inorganic & Analytical Chemistry, Andhra University, Waltair Junction, Visakhapatnam, Andhra Pradesh, 530003, India
| | - Chidananda Swamy Rumalla
- Chemistry Services, Aragen Life Sciences (Formerly known as GVK Biosciences), Plot No. 125 (part)&126, IDA, Mallapur, Hyderabad, Telangana, 500076, India
| | - Satyanarayana Yennam
- Chemistry Services, Aragen Life Sciences (Formerly known as GVK Biosciences), Plot No. 125 (part)&126, IDA, Mallapur, Hyderabad, Telangana, 500076, India
| | - Manoranjan Behera
- Chemistry Services, Aragen Life Sciences (Formerly known as GVK Biosciences), Plot No. 125 (part)&126, IDA, Mallapur, Hyderabad, Telangana, 500076, India
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Kandula V, Bandaru SK, Balakrishna C, Chatterjee A, Yennam S, Saunders GC, Behera M. Synthesis of 3,4,5‐Trisubstituted Isoxazoles via the ANRORC Rearrangement. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Venu Kandula
- GVK Biosciences Pvt. Ltd.Survey Nos: 125 (part) & 126 Chemistry Services 500076 Telangana Hyderabad India
- Department of chemistry Koneru Lakshmaiah education foundation 522502 Andra Pradesh Vaddeswaram Guntur India
| | | | - C. Balakrishna
- GVK Biosciences Pvt. Ltd.Survey Nos: 125 (part) & 126 Chemistry Services 500076 Telangana Hyderabad India
| | - Anindita Chatterjee
- Department of chemistry Koneru Lakshmaiah education foundation 522502 Andra Pradesh Vaddeswaram Guntur India
- Department of Chemistry Raghu Engineering college Visakhapatnam Andra Pradesh 530048 India
| | - Satyanarayana Yennam
- GVK Biosciences Pvt. Ltd.Survey Nos: 125 (part) & 126 Chemistry Services 500076 Telangana Hyderabad India
| | | | - Manoranjan Behera
- GVK Biosciences Pvt. Ltd.Survey Nos: 125 (part) & 126 Chemistry Services 500076 Telangana Hyderabad India
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Gudipati R, Kandula V, Raghavulu K, Basavaiah K, Yennam S, Behera M. Peroxy‐Benzoic Acid Mediated Domino C[sp
2
] Hydroxylation /Annulation of Enaminones for the Synthesis of 3‐Hydroxy Chromones. ChemistrySelect 2020. [DOI: 10.1002/slct.202001749] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ramakrishna Gudipati
- Department of Medicinal ChemistryGVK Biosciences Pvt. Ltd. Plot No. 125 (part)&126, IDA, Mallapur Hyderabad Telangana India 500076
- Department of Inorganic & Analytical ChemistryAndhra University Waltair Junction Visakhapatnam Andhra Pradesh India 530003
| | - Venu Kandula
- Department of Medicinal ChemistryGVK Biosciences Pvt. Ltd. Plot No. 125 (part)&126, IDA, Mallapur Hyderabad Telangana India 500076
| | - K. Raghavulu
- Department of Medicinal ChemistryGVK Biosciences Pvt. Ltd. Plot No. 125 (part)&126, IDA, Mallapur Hyderabad Telangana India 500076
- Department of Inorganic & Analytical ChemistryAndhra University Waltair Junction Visakhapatnam Andhra Pradesh India 530003
| | - K. Basavaiah
- Department of Inorganic & Analytical ChemistryAndhra University Waltair Junction Visakhapatnam Andhra Pradesh India 530003
| | - Satyanarayana Yennam
- Department of Medicinal ChemistryGVK Biosciences Pvt. Ltd. Plot No. 125 (part)&126, IDA, Mallapur Hyderabad Telangana India 500076
| | - Manoranjan Behera
- Department of Medicinal ChemistryGVK Biosciences Pvt. Ltd. Plot No. 125 (part)&126, IDA, Mallapur Hyderabad Telangana India 500076
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Kandula V, Balakrishna C, Behera M, Nagababu U, Kumar GK, Chatterjee A. Catalytic Efficiency of Biosynthesized Silver Nanoparticles in Synthesis of Chromones and Reduction of Nitro Aromatics. ChemistrySelect 2019. [DOI: 10.1002/slct.201903001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Venu Kandula
- Department of ChemistryKoneru Laksmaiah Education Foundation Vaddeswaram, Guntur, Andhra Pradesh India 522502
- Medicinal Chemistry DepartmentGVK Biosciences Pvt. Ltd., Mallapur Hyderabad, Telangana India 500076
| | - C. Balakrishna
- Medicinal Chemistry DepartmentGVK Biosciences Pvt. Ltd., Mallapur Hyderabad, Telangana India 500076
| | - Manoranjan Behera
- Medicinal Chemistry DepartmentGVK Biosciences Pvt. Ltd., Mallapur Hyderabad, Telangana India 500076
| | - Uppu Nagababu
- Department of ChemistryKoneru Laksmaiah Education Foundation Vaddeswaram, Guntur, Andhra Pradesh India 522502
| | - G. Kiran Kumar
- Department of PhysicsRaghu Engineering College Visakhapatnam, Andhra Pradesh India - 531162
| | - Anindita Chatterjee
- Department of ChemistryKoneru Laksmaiah Education Foundation Vaddeswaram, Guntur, Andhra Pradesh India 522502
- Department of ChemistryRaghu Engineering College Visakhapatnam, Andhra Pradesh India
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