1
|
Tay GC, Sizemore N, Rychnovsky SD. Stereoselection in Intramolecular Diels–Alder Reactions of 2-Cyano-1-azadienes: Indolizidine and Quinolizidine Synthesis. Org Lett 2016; 18:3050-3. [PMID: 27295460 DOI: 10.1021/acs.orglett.6b00881] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gidget C. Tay
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697-2025, United States
| | - Nicholas Sizemore
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697-2025, United States
| | - Scott D. Rychnovsky
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697-2025, United States
| |
Collapse
|
2
|
Mamedov VA. Recent advances in the synthesis of benzimidazol(on)es via rearrangements of quinoxalin(on)es. RSC Adv 2016. [DOI: 10.1039/c6ra03907c] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The review describes all the quinoxaline-benzimidazole rearrangements as a whole and the new quinoxalinone-benzimidazol(on)e rearrangements in particular when exposed to nucleophilic rearrangements which can be used for the synthesis of various biheterocyclic motifs.
Collapse
Affiliation(s)
- Vakhid A. Mamedov
- A. E. Arbuzov Institute of Organic and Physical Chemistry
- Kazan Scientific Center of the Russian Academy of Sciences
- Kazan
- Russian Federation
| |
Collapse
|
4
|
Yadav JS, Antony A, Reddy BVS. Bismuth(III) salts as synthetic tools in organic transformations. Top Curr Chem (Cham) 2011; 311:229-69. [PMID: 22025068 DOI: 10.1007/128_2011_274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bismuth is the heaviest stable element of the periodic table and even though it carries the status of heavy metal, it is rated as relatively nontoxic and noncarcinogenic unlike its neighboring elements. Additionally, the fact that it tolerates air and moisture makes the chemistry of bismuth attractive to synthetic chemists. The catalytic nature of this metal is attributed to the capability of its salts to acts as Lewis acids in reactions. The nontoxicity together with the ability to endure moisture makes bismuth compounds favorites of chemists and scientists who are concerned about environmental hazards, and such properties are highly desirable for scale-up of a method. The Lewis acidic nature of salts of this element have been thoroughly investigated in various types of reactions such as cycloaddition reactions, reactions of sugars, protection and deprotection reactions, synthesis of heterocyclic systems etc. Since the 1990s, various research groups have successfully utilized this catalytic nature for many organic transformations. Our group's contribution towards the development of methodologies that are useful in accomplishing various functional group manipulations by making use of the catalytic properties of bismuth salts is portrayed here. The mechanistic aspects and the catalytic efficiency of the bismuth(III) salts are accented together with the synthetic utility and the biological and pharmacological applications of the methodologies developed.
Collapse
Affiliation(s)
- J S Yadav
- Division of Organic Chemistry, Indian Institute of Chemical Technology, Hyderabad, India.
| | | | | |
Collapse
|
5
|
Monbaliu JCM, Masschelein KGR, Stevens CV. Electron-deficient 1- and 2-azabuta-1,3-dienes: a comprehensive survey of their synthesis and reactivity. Chem Soc Rev 2011; 40:4708-39. [PMID: 21655551 DOI: 10.1039/c1cs15070g] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Electron-deficient 1- and 2-azabuta-1,3-dienes are reagents intrinsically able to provide a wide range of cyclic and acyclic N-containing building blocks. Depending on their substitution, they behave as dienes for Diels-Alder reactions, as partners for [4+1], [3+2], [2+2]-cycloadditions, for aziridinations and as electrophiles for 1,2 and 1,4-additions. Nowadays, they are a very versatile family of compounds, despite their usual instability and complex reactivity. Four decades of research in this challenging area are reviewed in this critical review: their synthetic aspects and their reactivity towards a wide range of dienophiles, dipoles and nucleophiles are described as well. The introduction focuses on their electronic properties in order to get a clear picture of their reactivity (190 references).
Collapse
Affiliation(s)
- Jean-Christophe M Monbaliu
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, B-9000 Gent, Belgium
| | | | | |
Collapse
|
6
|
Mamedov VA, Saifina DF, Gubaidullin AT, Ganieva VR, Kadyrova SF, Rakov DV, Rizvanov IK, Sinyashin OG. Acid-catalyzed rearrangement of 3-(β-2-aminostyryl)quinoxalin-2(1H)ones—a new and efficient method for the synthesis of 2-benzimidazol-2-ylquinolines. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.10.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
7
|
Singh L, Singh Ishar MP, Elango M, Subramanian V, Gupta V, Kanwal P. Synthesis of Unsymmetrical Substituted 1,4-Dihydropyridines through Thermal and Microwave Assisted [4+2] Cycloadditions of 1-Azadienes and Allenic Esters. J Org Chem 2008; 73:2224-33. [DOI: 10.1021/jo702548b] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lakhwinder Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar 143 005, Punjab, India, Chemical Laboratory, Central Leather Research Institute, Adyar, Chennai 600 020, Tamilnadu, India, and P. G. Department of Physics, University of Jammu, Jammu Tawi-180 006, India
| | - M. P. Singh Ishar
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar 143 005, Punjab, India, Chemical Laboratory, Central Leather Research Institute, Adyar, Chennai 600 020, Tamilnadu, India, and P. G. Department of Physics, University of Jammu, Jammu Tawi-180 006, India
| | - Munusamy Elango
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar 143 005, Punjab, India, Chemical Laboratory, Central Leather Research Institute, Adyar, Chennai 600 020, Tamilnadu, India, and P. G. Department of Physics, University of Jammu, Jammu Tawi-180 006, India
| | - Venkatesan Subramanian
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar 143 005, Punjab, India, Chemical Laboratory, Central Leather Research Institute, Adyar, Chennai 600 020, Tamilnadu, India, and P. G. Department of Physics, University of Jammu, Jammu Tawi-180 006, India
| | - Vivek Gupta
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar 143 005, Punjab, India, Chemical Laboratory, Central Leather Research Institute, Adyar, Chennai 600 020, Tamilnadu, India, and P. G. Department of Physics, University of Jammu, Jammu Tawi-180 006, India
| | - Priyanka Kanwal
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar 143 005, Punjab, India, Chemical Laboratory, Central Leather Research Institute, Adyar, Chennai 600 020, Tamilnadu, India, and P. G. Department of Physics, University of Jammu, Jammu Tawi-180 006, India
| |
Collapse
|
9
|
Sabitha G, Venkata Reddy E, Maruthi C, Yadav J. Bismuth(III) chloride-catalyzed intramolecular hetero-Diels–Alder reactions: a novel synthesis of hexahydrodibenzo[b,h][1,6]naphthyridines. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00018-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
12
|
Palacios F, Aparicio D, Garcı́a J, Rodrı́guez E, Fernández-Acebes A. A convenient synthesis of racemic and optically active 1-aza-1,3-dienes derived from γ-amino esters: reduction to α,β-unsaturated and saturated γ-amino acid derivatives. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00171-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|