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Metal-free selective acylation reaction of aliphatic alcohols in neutral condition. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-022-02694-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Biswas A, Kim S, Ferro Furtado R, Roberto Alves C, Buttrum M, Boddu V, Cheng HN. Metal chloride-catalyzed acetylation of starch: Synthesis and characterization. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2018. [DOI: 10.1080/1023666x.2018.1512465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Atanu Biswas
- USDA Agricultural Research Service, National Center for Agricultural Utilization Research, Peoria, IL, USA
| | - Sanghoon Kim
- USDA Agricultural Research Service, National Center for Agricultural Utilization Research, Peoria, IL, USA
| | | | | | - Megan Buttrum
- USDA Agricultural Research Service, National Center for Agricultural Utilization Research, Peoria, IL, USA
| | - Veera Boddu
- USDA Agricultural Research Service, National Center for Agricultural Utilization Research, Peoria, IL, USA
| | - H. N. Cheng
- USDA Agricultural Research Service, Southern Regional Research Center, New Orleans, LA, USA
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3
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Hafnium inspired activation of highly hindered anhydrides in the acylation of alcohols and polyols. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Selective Acetylation of Small Biomolecules and Their Derivatives Catalyzed by Er(OTf)3. Catalysts 2017. [DOI: 10.3390/catal7090269] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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5
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Yan YL, Guo JR, Liang CF. Sequential Dy(OTf) 3 -Catalyzed Solvent-Free Per-O-Acetylation and Regioselective Anomeric De-O-Acetylation of Carbohydrates. Chem Asian J 2017; 12:2471-2479. [PMID: 28688169 DOI: 10.1002/asia.201700867] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 07/04/2017] [Indexed: 11/06/2022]
Abstract
Dysprosium(III) trifluoromethanesulfonate-catalyzed per-O-acetylation and regioselective anomeric de-O-acetylation of carbohydrates can be tuned by adjusting the reaction medium. In this study, the per-O-acetylation of unprotected sugars by using a near-stoichiometric amount of acetic anhydride under solvent-free conditions resulted in the exclusive formation of acetylated saccharides as anomeric mixtures, whereas anomeric de-O-acetylation in methanol resulted in a moderate-to-excellent yield. Reactions with various unprotected monosaccharides or disaccharides followed by a semi-one-pot sequential conversion into the corresponding acetylated glycosyl hemiacetal also resulted in high yields. Furthermore, the obtained hemiacetals could be successfully transformed into trichloroimidates after Dy(OTf)3 -catalyzed glycosylation.
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Affiliation(s)
- Yi-Ling Yan
- Department of Chemistry, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung City, 402, Taiwan
| | - Jiun-Rung Guo
- Department of Chemistry, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung City, 402, Taiwan
| | - Chien-Fu Liang
- Department of Chemistry, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung City, 402, Taiwan
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6
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Staroń J, Dąbrowski JM, Cichoń E, Guzik M. Lactose esters: synthesis and biotechnological applications. Crit Rev Biotechnol 2017; 38:245-258. [PMID: 28585445 DOI: 10.1080/07388551.2017.1332571] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Biodegradable nonionic sugar esters-based surfactants have been gaining more and more attention in recent years due to their chemical plasticity that enables the various applications of these molecules. In this review, various synthesis methods and biotechnological implications of lactose esters (LEs) uses are considered. Several chemical and enzymatic approaches are described for the synthesis of LEs, together with their applications, i.e. function in detergents formulation and as additives that not only stabilize food products but also protect food from undesired microbial contamination. Further, this article discusses medical applications of LEs in cancer treatment, especially their uses as biosensors, halogenated anticancer drugs, and photosensitizing agents for photodynamic therapy of cancer and photodynamic inactivation of microorganisms.
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Affiliation(s)
- Jakub Staroń
- a Institute of Pharmacology of the Polish Academy of Sciences , Kraków , Poland
| | | | - Ewelina Cichoń
- c Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences , Kraków , Poland
| | - Maciej Guzik
- c Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences , Kraków , Poland
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7
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8
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Giri SK, Gour R, Kartha KPR. Diazepinium perchlorate: a neutral catalyst for mild, solvent-free acetylation of carbohydrates and other substances. RSC Adv 2017. [DOI: 10.1039/c6ra28882k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Diazepinium perchlorate-promoted acetylation of free as well as partially protected sugars, phenols, thiophenols, thiols, other alcohols and amines is described.
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Affiliation(s)
- Santosh Kumar Giri
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- SAS Nagar
- India
| | - Rajesh Gour
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- SAS Nagar
- India
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9
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Highly Efficient Cationic Palladium Catalyzed Acetylation of Alcohols and Carbohydrate-Derived Polyols. Catalysts 2016. [DOI: 10.3390/catal6020027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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10
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Mukherjee MM, Basu N, Chaudhury A, Ghosh R. Efficient one-pot per-O-acetylation–thioglycosidation of native sugars, 4,6-O-arylidenation and one-pot 4,6-O-benzylidenation–acetylation of S-/O-glycosides catalyzed by Mg(OTf)2. RSC Adv 2016. [DOI: 10.1039/c6ra23198e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sequential one-pot per-O-acetylation–S-/O-glycosidation under neat condition, regioselective 4,6-O-arylidenation and sequential one-pot benzylidenation–acetylation of Mg(OTf)2as non-hygroscopic, recyclable catalyst are reported.
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Affiliation(s)
| | - Nabamita Basu
- Department of Chemistry
- Jadavpur University
- Kolkata
- India
| | | | - Rina Ghosh
- Department of Chemistry
- Jadavpur University
- Kolkata
- India
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11
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Lin TW, Adak AK, Lin HJ, Das A, Hsiao WC, Kuan TC, Lin CC. Tetranuclear zinc cluster: a dual purpose catalyst for per-O-acetylation and de-O-acetylation of carbohydrates. RSC Adv 2016. [DOI: 10.1039/c6ra12050d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A tetranuclear Zn cluster-catalyzed per-O-acetylation and de-O-acetylation of carbohydrates has been reported.
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Affiliation(s)
- Ting-Wei Lin
- Department of Chemistry
- National Tsing Hua University
- Hsinchu-300
- Taiwan
| | - Avijit K. Adak
- Department of Chemistry
- National Tsing Hua University
- Hsinchu-300
- Taiwan
| | - Hong-Jyune Lin
- Department of Chemistry
- National Tsing Hua University
- Hsinchu-300
- Taiwan
| | - Anindya Das
- Department of Chemistry
- National Tsing Hua University
- Hsinchu-300
- Taiwan
| | - Wei-Chen Hsiao
- Department of Chemistry
- National Tsing Hua University
- Hsinchu-300
- Taiwan
| | - Ting-Chun Kuan
- Department of Chemistry
- National Tsing Hua University
- Hsinchu-300
- Taiwan
| | - Chun-Cheng Lin
- Department of Chemistry
- National Tsing Hua University
- Hsinchu-300
- Taiwan
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12
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Chatterjee D, Paul A, Rajkamal R, Yadav S. Cu(ClO4)2·6H2O catalyzed solvent free per-O-acetylation and sequential one-pot conversions of sugars to thioglycosides. RSC Adv 2015. [DOI: 10.1039/c5ra03461b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The solvent free per-O-acetylation of various reducing and non-reducing sugars has been carried out using stoichiometric amounts of acetic anhydride and copper(ii) perchlorate hexahydrate as the catalyst.
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Affiliation(s)
- Debnath Chatterjee
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
| | - Abhijit Paul
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
| | - Rajkamal Rajkamal
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
| | - Somnath Yadav
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
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13
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Lee JH, Oh CH. ChemoselectiveO-Benzylation of the Propargylic Hydroxy Group in Polyols. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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14
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Ch R, Tyagi M, Patil PR, Ravindranathan Kartha K. DABCO: an efficient promoter for the acetylation of carbohydrates and other substances under solvent-free conditions. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.141] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Dalpozzo R, Bartoli G, Sambri L, Melchiorre P. Perchloric Acid and Its Salts: Very Powerful Catalysts in Organic Chemistry. Chem Rev 2010; 110:3501-51. [DOI: 10.1021/cr9003488] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Renato Dalpozzo
- Department of Chemistry, Università della Calabria, Ponte Bucci cubo 12/c,I-87030 Arcavacata di Rende (Cs), Italy
| | - Giuseppe Bartoli
- Department of Organic Chemistry “A. Mangini”, Università di Bologna, viale Risorgimento 4, I-40136 Bologna, Italy
| | - Letizia Sambri
- Department of Organic Chemistry “A. Mangini”, Università di Bologna, viale Risorgimento 4, I-40136 Bologna, Italy
| | - Paolo Melchiorre
- ICIQ - Institut Català d’Investigació Química, Avgda. Països Catalans 16, E-43007 Tarragona, Spain
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16
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Indium triflate catalyzed peracetylation of carbohydrates. Carbohydr Res 2008; 343:1814-8. [PMID: 18440500 DOI: 10.1016/j.carres.2008.04.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2008] [Revised: 04/02/2008] [Accepted: 04/05/2008] [Indexed: 11/24/2022]
Abstract
Peracetylation is a very common protection strategy that is widely implemented in carbohydrate synthesis. Here, a method for the peracetylation of carbohydrates using catalytic In(OTf)(3) in neat acetic anhydride is reported. In(OTf)(3) has low toxicity and is mild and water tolerant, and the reactions are high yielding and efficient. Details regarding the scope and mechanism of the reaction are briefly discussed.
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17
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Chao CS, Chen MC, Lin SC, Mong KKT. Versatile acetylation of carbohydrate substrates with bench-top sulfonic acids and application to one-pot syntheses of peracetylated thioglycosides. Carbohydr Res 2008; 343:957-64. [DOI: 10.1016/j.carres.2008.01.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2007] [Revised: 01/09/2008] [Accepted: 01/16/2008] [Indexed: 11/25/2022]
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18
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Tiwari P, Misra AK. Acylation of carbohydrates over Al2O3: preparation of partially and fully acylated carbohydrate derivatives and acetylated glycosyl chlorides. Carbohydr Res 2006; 341:339-50. [PMID: 16364271 DOI: 10.1016/j.carres.2005.11.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2005] [Revised: 11/11/2005] [Accepted: 11/18/2005] [Indexed: 11/21/2022]
Abstract
Selective and per-O-acylation of carbohydrate derivatives using acyl chlorides and Al2O3, a solid support reagent, is reported. This protocol does not require the addition of any base or activator. This methodology has been further extended to the selective acylation of carbohydrate diols and the one-pot preparation of acetylated glycosyl chlorides direct from free reducing sugars. The yields obtained in most of the cases are excellent.
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Affiliation(s)
- Pallavi Tiwari
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Chattar Manzil Palace, Lucknow 226 001, UP, India
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19
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Tiwari P, Kumar R, Maulik PR, Misra AK. Efficient Acetylation of Carbohydrates Promoted by Imidazole. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500555] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Bartoli G, Bosco M, Locatelli M, Marcantoni E, Melchiorre P, Sambri L. Unusual and Unexpected Reactivity of t-Butyl Dicarbonate (Boc2O) with Alcohols in the Presence of Magnesium Perchlorate. A New and General Route to t-Butyl Ethers. Org Lett 2005; 7:427-30. [PMID: 15673256 DOI: 10.1021/ol047704o] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] A new mild method for protecting alcohols as t-butyl ethers is reported. The reaction proceeds with Mg(ClO4)2 and Boc2O and shows general applicability. The deprotection of t-butyl ethers has also been revisited. Preliminary results indicate the CeCl3 x 7H2O/NaI system is a very suitable catalyst for their removal.
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Affiliation(s)
- Giuseppe Bartoli
- Dipartimento di Chimica Organica "A. Mangini", v.le Risorgimento 4, I-40136 Bologna, Italy.
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