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Singh K, Behera SS, Tyagi R, Tiwari G, Sagar R. Metal free synthesis of 2,3-dideoxy-α, β-unsaturated carbohydrate enals (Perlin aldehydes). Carbohydr Res 2023; 531:108890. [PMID: 37406515 DOI: 10.1016/j.carres.2023.108890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/16/2023] [Accepted: 06/27/2023] [Indexed: 07/07/2023]
Abstract
A metal free synthesis of enantiopure 2,3-dideoxy-α, β-unsaturated carbohydrate enals (Perlin aldehydes), in CH3CN-0.02 N H2SO4 in water (1:1, v/v) with 0.5 equivalent additives (4-hydroxy-6-methyl-2-pyrone or 4-amino coumarin), has been reported. This efficient protocol works well for the acetylated glycals (glucal, galactal and arabinal) and afforded Perlin aldehydes and hemiacetals in acceptable to good yields. Whereas, benzylated glycals furnished respective Perlin aldehydes, hemiacetals and the 2-deoxy derivatives, under similar reaction conditions. The products yields were significantly reduced when the additives were removed from the reaction mixture, indicating that they constitute an essential component of this approach. Further the use of 0.02 N H2SO4 in water: acetonitrile (1:1, v/v) solvent system is essential for the formation of Perlin aldehydes. The similar reactions under neutral reaction conditions (CH3CN:H2O, 1:1, v/v) with additives, afforded the hemiacetals as major product. This methodology is a metal free approach to Perlin aldehyde synthesis and therefore having additional benefit of its use in preparation of bioactive drug molecules, where metal toxicity is the major concern.
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Affiliation(s)
- Kavita Singh
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Sourav Sagar Behera
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Rajdeep Tyagi
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Ghanshyam Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Ram Sagar
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India.
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Miranda S, Gómez AM, López JC. Diversity-Oriented Synthetic Endeavors of Newly Designed Ferrier and Ferrier-Nicholas Systems Derived from 1-C-Alkynyl-2-deoxy-2-C-Methylene Pyranosides. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Silvia Miranda
- Bioorganic Chemistry Department; Instituto Quimica Organica General (IQOG-CSIC); Juan de la Cierva 3 28006 Madrid Spain
| | - Ana M. Gómez
- Bioorganic Chemistry Department; Instituto Quimica Organica General (IQOG-CSIC); Juan de la Cierva 3 28006 Madrid Spain
| | - J. Cristóbal López
- Bioorganic Chemistry Department; Instituto Quimica Organica General (IQOG-CSIC); Juan de la Cierva 3 28006 Madrid Spain
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Harit VK, Ramesh NG. A Chiron Approach to Diversity-Oriented Synthesis of Aminocyclitols, (−)-Conduramine F-4 and Polyhydroxyaminoazepanes from a Common Precursor. J Org Chem 2016; 81:11574-11586. [DOI: 10.1021/acs.joc.6b01790] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vimal Kant Harit
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Namakkal G. Ramesh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Santhanam V, Ramesh NG. A Glycal Approach to the Synthesis of Steviamine Analogues. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402943] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Reddy LVR, Kumar V, Sagar R, Shaw AK. Glycal-Derived δ-Hydroxy α,β-Unsaturated Aldehydes (Perlin Aldehydes): Versatile Building Blocks in Organic Synthesis. Chem Rev 2013; 113:3605-31. [DOI: 10.1021/cr200016m] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. Vijaya Raghava Reddy
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow, India-226001
| | - Vikas Kumar
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow, India-226001
| | - Ram Sagar
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow, India-226001
| | - Arun K. Shaw
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow, India-226001
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