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Lops C, Pengo P, Pasquato L. Highly Efficient Darzens Reactions Mediated by Phosphazene Bases under Mild Conditions. ChemistryOpen 2022; 11:e202200179. [PMID: 36207800 PMCID: PMC9547082 DOI: 10.1002/open.202200179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/30/2022] [Indexed: 11/18/2022] Open
Abstract
The highly basic and poorly nucleophilic phosphazene base P1 -t-Bu promotes the Darzens condensation of α-halo esters with aromatic aldehydes affording α,β-epoxy esters in nearly quantitative yields under mild conditions and in short reaction times. The more basic P4 -t-Bu phosphazene was found useful with low reactivity aldehydes. These reactions can be performed in aprotic organic solvents of low polarity, thus minimizing the hydrolysis of α,β-epoxy esters which often accompanies the base-promoted Darzens condensations.
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Affiliation(s)
- Carmine Lops
- Department of Chemical and Pharmaceutical SciencesUniversity of TriesteVia L. Giorgieri 134127TriesteItaly
- Aptuit – an Evotec CompanyVia A. Fleming 437135VeronaItaly
| | - Paolo Pengo
- Department of Chemical and Pharmaceutical SciencesUniversity of TriesteVia L. Giorgieri 134127TriesteItaly
| | - Lucia Pasquato
- Department of Chemical and Pharmaceutical SciencesUniversity of TriesteVia L. Giorgieri 134127TriesteItaly
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2
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Diastereoselective approach to trans -5-hydroxy-6-substitutedethanone-2-piperidinones: Scalable syntheses of (+)-febrifugine and (+)-halofuginone. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Liu YW, Ma RJ, Yan JH, Zhou Z, Wei BG. Asymmetric synthesis of (-)-sedacryptine through a diastereoselective Mannich reaction of N,O-acetals with ketones. Org Biomol Chem 2018; 16:771-779. [PMID: 29319096 DOI: 10.1039/c7ob02989f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient diastereoselective approach to access the 3-hydroxy-2,6-disubstituted piperidine scaffold 1 has been developed through the Mannich process involving N,O-acetal (2S,3R)-6 and ketones in excellent yield with high diastereoselectivity (dr > 99 : 1). In addition, the utility of this convenient one-pot process is demonstrated by the asymmetric synthesis of (-)-sedacryptine 3.
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Affiliation(s)
- Yi-Wen Liu
- Institutes of Biomedical Sciences and School of Pharmacy, Fudan University, 130 Dongan Road, Shanghai, 200032, China.
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4
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Divergent syntheses of L-733, 060 and CP-122721 from functionalized pieridinones made by one-pot tandem cyclization. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Liu YW, Han P, Zhou W, Mao ZY, Si CM, Wei BG. Asymmetric syntheses of epohelmins A and B by In-mediated allylation. Org Biomol Chem 2016; 14:10714-10722. [PMID: 27805230 DOI: 10.1039/c6ob02212j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A diastereoselective new approach for the synthesis of trans-4-hydroxy-5-allyl-2-pyrrolidinone 9 has been developed through In-mediated allylation of α-chiral aldimine 8 with allyl bromide. The stereochemistry at the C-2 stereogenic center of 9 was controlled by both the α-OTBS substitution and the sulfinamide moiety. The utility of this asymmetric allylation is demonstrated by the asymmetric syntheses of epohelmins A (4) and B (10).
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Affiliation(s)
- Yi-Wen Liu
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
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6
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Si CM, Mao ZY, Zhou Z, Du ZT, Wei BG. Divergent synthesis of L-685,458 and its analogues involving one-pot intramolecular tandem sequence reaction. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.059] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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7
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Si CM, Mao ZY, Dong HQ, Du ZT, Wei BG, Lin GQ. Divergent Method to trans-5-Hydroxy-6-alkynyl/alkenyl-2-piperidinones: Syntheses of (−)-Epiquinamide and (+)-Swainsonine. J Org Chem 2015; 80:5824-33. [DOI: 10.1021/acs.joc.5b00803] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Chang-Mei Si
- School
of Pharmacy, Department of Chemistry and Institutes of Biomedical
Sciences, Fudan University, 220 Handan Road, Shanghai 200433, China
- College
of Science, Northwest Agriculture and Forestry University, Shaanxi Yangling, 712100, China
| | - Zhuo-Ya Mao
- School
of Pharmacy, Department of Chemistry and Institutes of Biomedical
Sciences, Fudan University, 220 Handan Road, Shanghai 200433, China
- College
of Science, Northwest Agriculture and Forestry University, Shaanxi Yangling, 712100, China
| | - Han-Qing Dong
- Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Zhen-Ting Du
- College
of Science, Northwest Agriculture and Forestry University, Shaanxi Yangling, 712100, China
| | - Bang-Guo Wei
- School
of Pharmacy, Department of Chemistry and Institutes of Biomedical
Sciences, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Guo-Qiang Lin
- School
of Pharmacy, Department of Chemistry and Institutes of Biomedical
Sciences, Fudan University, 220 Handan Road, Shanghai 200433, China
- Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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8
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Bakthadoss M, Srinivasan J. A facile synthesis of isoxazolo[3,4-a]pyrrolizine and isoxazolo[4,3-c]pyridine derivatives via intramolecular nitrone cycloaddition reaction. RSC Adv 2015. [DOI: 10.1039/c5ra10371a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Isoxazolo [3,4-a]pyrrolizine and isoxazolo[4,3-c]pyridine are formed by a facile and efficient intramolecular [3 + 2] nitrone cycloaddition, forming two new rings and three contiguous stereocentres with high diastereoselectivity and good yields.
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Affiliation(s)
- Manickam Bakthadoss
- Department of Chemistry
- Pondicherry University
- Pondicherry-605014
- India
- Department of Organic Chemistry
| | - Jayakumar Srinivasan
- Department of Organic Chemistry
- University of Madras
- Guindy Campus
- Chennai-600025
- India
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9
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Si CM, Huang W, Du ZT, Wei BG, Lin GQ. Diastereoconvergent synthesis of trans-5-hydroxy-6-substituted-2-piperidinones by addition-cyclization-deprotection process. Org Lett 2014; 16:4328-31. [PMID: 25083821 DOI: 10.1021/ol5020812] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A diastereoselective one-pot approach to access trans-5-hydroxy-6-substituted-2-piperidinones by an addition-cyclization-deprotection process has been developed, in which the stereogenic center at the C-6 position was solely controlled by α-OTBS group. The utility of this transformation is demonstrated by the asymmetric synthesis of the enantiomer of (-)-CP-99,994.
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Affiliation(s)
- Chang-Mei Si
- Department of Chemistry and Institute of Biomedical Sciences, Fudan University , 220 Handan Road, Shanghai 200433, P.R. China
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10
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Echeverria PG, Prévost S, Cornil J, Férard C, Reymond S, Guérinot A, Cossy J, Ratovelomanana-Vidal V, Phansavath P. Synthetic Strategy toward the C44–C65 Fragment of Mirabalin. Org Lett 2014; 16:2390-3. [DOI: 10.1021/ol500720j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Pierre-Georges Echeverria
- PSL Research University,
Chimie ParisTech - CNRS, Institut de Recherche
de Chimie Paris, 75005 Paris, France
| | - Sébastien Prévost
- PSL Research University,
Chimie ParisTech - CNRS, Institut de Recherche
de Chimie Paris, 75005 Paris, France
| | - Johan Cornil
- Laboratoire
de Chimie Organique, Institute
of Chemistry, Biology and Innovation (CBI) − UMR 8231 −
ESPCI ParisTech/CNRS/PSL* Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Charlène Férard
- PSL Research University,
Chimie ParisTech - CNRS, Institut de Recherche
de Chimie Paris, 75005 Paris, France
| | - Sébastien Reymond
- Laboratoire
de Chimie Organique, Institute
of Chemistry, Biology and Innovation (CBI) − UMR 8231 −
ESPCI ParisTech/CNRS/PSL* Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Amandine Guérinot
- Laboratoire
de Chimie Organique, Institute
of Chemistry, Biology and Innovation (CBI) − UMR 8231 −
ESPCI ParisTech/CNRS/PSL* Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Janine Cossy
- Laboratoire
de Chimie Organique, Institute
of Chemistry, Biology and Innovation (CBI) − UMR 8231 −
ESPCI ParisTech/CNRS/PSL* Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | | | - Phannarath Phansavath
- PSL Research University,
Chimie ParisTech - CNRS, Institut de Recherche
de Chimie Paris, 75005 Paris, France
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11
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Shengule SR, Willis AC, Pyne SG. Model support studies toward the total synthesis of the stemona alkaloid stemocurtisine. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.099] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Pansare SV, Paul EK. Synthesis of (+)-L-733,060, (+)-CP-99,994 and (2S,3R)-3-hydroxypipecolic acid: application of an organocatalytic direct vinylogous aldol reaction. Org Biomol Chem 2012; 10:2119-25. [PMID: 22294285 DOI: 10.1039/c2ob06644k] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The γ-butenolide obtained from an organocatalyzed, direct vinylogous aldol reaction of γ-crotonolactone and benzaldehyde serves as the key starting material in the expedient synthesis of a 3-hydroxy-2-phenyl piperidine intermediate which is converted to the target 2,3-disubstituted piperidines.
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Affiliation(s)
- Sunil V Pansare
- Department of Chemistry, Memorial University, St. John's, Newfoundland, Canada, A1B 3X7.
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13
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Cossy J, Gomez Pardo D, Cochi A. Synthesis of Two Neurokinin NK1 Receptor Antagonists: (+)-L-733,060 and (-)-L-733,061. HETEROCYCLES 2012. [DOI: 10.3987/rev-12-sr(n)2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Mizuta S, Onomura O. Diastereoselective addition to N-acyliminium ions with aryl- and alkenyl boronic acids via a Petasis-type reaction. RSC Adv 2012. [DOI: 10.1039/c2ra01254e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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15
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Kas’yan LI, Pal’chikov VA, Bondarenko YS. Five-membered oxaza heterocyclic compounds on the basis of epoxides and aziridines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2011. [DOI: 10.1134/s1070428011060017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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