1
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Camphor: Synthesis, reactions and uses as a potential moiety in the development of complexes and organocatalysts. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Obe FO, Davis RA, Spurlock J, Grunloh Barnes MM, Lindvall T, Wendorf MS, Delach C, Ferrence GM, Standard JM, Hitchcock SR. Asymmetric conjugate addition reactions with chiral oxadiazinones: Unusual conformational properties of the oxadiazinones. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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3
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Liu X, Song H, Zhai X, Tung CH, Wang W. Cobalt-catalyzed regioselective hydrohydrazination of epoxides. Org Biomol Chem 2020; 18:1572-1576. [PMID: 32039418 DOI: 10.1039/d0ob00037j] [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
Using an air-stable cobalt catalyst [Cp*Co(1,2-Ph2PC6H4S)(NCMe)]BF4 (1, Cp* = Me5C5-), we have achieved catalytic regioselective hydrohydrazination of epoxides to 1,1-hydrazinoalcohols in an atom-economical manner. The catalysis involves a cobalt-hydrazine intermediate, in which the NH2 group of the hydrazine binds to the metal center, inhibiting its nucleophilic reactivity and allowing the NH group to participate in the regioselective hydrohydrazination.
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Affiliation(s)
- Xiangyu Liu
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
| | - Heng Song
- School of Environment and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China
| | - Xiaofang Zhai
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
| | - Chen-Ho Tung
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
| | - Wenguang Wang
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
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4
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Shahabadi N, Akhtarshenas S, Hadidi S. Synthesis, characterization and DNA interaction studies of new copper complex containing pseudoephedrine hydrochloride drug. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2019; 38:680-699. [PMID: 30942140 DOI: 10.1080/15257770.2019.1599909] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A new copper(II) complex, [Cu(pse)(phen)Cl2]; in which phen = 1,10-phenanthroline and pse = pseudoephedrine hydrochloride drug; was synthesized and characterized by FT-IR, Mass and UV-Vis spectroscopy in combination with computational methods. Binding interaction of this complex with calf thymus DNA (ct-DNA) has been investigated by absorption, emission, circular dichroism, molecular docking and viscosity measurements. The complex displays significant binding properties of ct-DNA. The results of fluorescence and UV-Vis absorption spectroscopy indicated that, this complex interacted with ct-DNA in a groove-binding mode, and the binding constant was 8 × 104 L mol-1. Competitive fluorimetric studies with Hoechst 33258 have shown that Cu(II) complex exhibit the ability to displace the DNA-bound Hoechst 33258 indicating that it binds to DNA in strong competition with Hoechst 33258 for the groove binding. Furthermore, the complex induces detectable changes in the CD spectrum of ct-DNA and does not induce any changes in DNA viscosity which verified the groove-binding mode. The molecular modeling results illustrated that the complex strongly binds to groove of DNA by relative binding energy of docked structure (-27.61 kJ mol-1).
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Affiliation(s)
- Nahid Shahabadi
- a Department of Inorganic chemistry Faculty of Chemistry , Razi University , Kermanshah , Iran.,b Medical Biology Research Center (MBRC) Kermanshah University of Medical Sciences , Kermanshah , Iran
| | - Shirin Akhtarshenas
- a Department of Inorganic chemistry Faculty of Chemistry , Razi University , Kermanshah , Iran
| | - Saba Hadidi
- a Department of Inorganic chemistry Faculty of Chemistry , Razi University , Kermanshah , Iran.,b Medical Biology Research Center (MBRC) Kermanshah University of Medical Sciences , Kermanshah , Iran
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5
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Davies SG, Fletcher AM, Thomson JE. Direct asymmetric syntheses of chiral aldehydes and ketones via N-acyl chiral auxiliary derivatives including chiral Weinreb amide equivalents. Chem Commun (Camb) 2014; 49:8586-98. [PMID: 23959006 DOI: 10.1039/c3cc45463k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This article covers N-acyl chiral auxiliary-based approaches to the asymmetric synthesis of enantiopure aldehydes and ketones. The use of diastereoisomerically pure N-acyl derivatives of chiral auxiliaries (including chiral Weinreb amide equivalents) and their conversion to the corresponding enantiopure aldehydes and ketones in a single synthetic operation by treatment with a hydride reducing agent or an organometallic reagent, respectively, are highlighted.
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Affiliation(s)
- Stephen G Davies
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
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6
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El-Metwally NM. Spectral and Biological Investigation for Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) Complexes With Optically Active Compound. ACTA ACUST UNITED AC 2013. [DOI: 10.1080/15533174.2013.776601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Nashwa M. El-Metwally
- a Department of Chemistry, Faculty of Science , Mansoura University , Egypt
- b Department of Chemistry, Faculty of Science of girls, Abha , King Khalid University , Saudi Arabia
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7
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Sehl T, Hailes HC, Ward JM, Wardenga R, von Lieres E, Offermann H, Westphal R, Pohl M, Rother D. Zwei Schritte in einem Reaktionsgefäß: Enzymkaskaden zur selektiven Synthese von Nor(pseudo)ephedrin aus kostengünstigen Ausgangsmaterialien. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300718] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Sehl T, Hailes HC, Ward JM, Wardenga R, von Lieres E, Offermann H, Westphal R, Pohl M, Rother D. Two Steps in One Pot: Enzyme Cascade for the Synthesis of Nor(pseudo)ephedrine from Inexpensive Starting Materials. Angew Chem Int Ed Engl 2013; 52:6772-5. [DOI: 10.1002/anie.201300718] [Citation(s) in RCA: 138] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Indexed: 11/08/2022]
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9
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Double asymmetric induction as a mechanistic probe: the doubly diastereoselective conjugate addition of enantiopure lithium amides to enantiopure α,β-unsaturated esters and enantiopure α,β-unsaturated hydroxamates. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.102] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Tka N, Jegham N, Ben Hassine B. Synthesis, antibacterial and antifungal activities of new chiral 5-alkyl-3-(1′-benzenesulfonylpyrrolidin-2′-yl)-4,5-dihydro-1,2,4-oxadiazin-6-ones. CR CHIM 2010. [DOI: 10.1016/j.crci.2009.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Synthesis and application of oxadiazines as chiral ligands for the enantioselective addition of diethylzinc to aldehydes. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.09.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Hitchcock SR, Dean MA, Kelley CJ, Edler KL, Ferrence GM. Synthesis and X-ray crystal structures of chiral, nonracemic 5,6-dihydro-4H-1,3,4-oxadiazines. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.402] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Bentley SA, Davies SG, Lee JA, Roberts PM, Russell AJ, Thomson JE, Toms SM. Conjugate addition of lithium N-tert-butyldimethylsilyloxy-N-(α-methylbenzyl)amide: asymmetric synthesis of β2,2,3-trisubstituted amino acids. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.027] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Koyanagi T, Edler KL, Parrott RW, Hitchcock SR, Ferrence GM. (6 R)-2- tert-Butyl-6-[(4 R,5 S)-3-isopropyl-4-methyl-5-phenyloxazolidin-2-yl]phenol. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o898-9. [PMID: 21580714 PMCID: PMC2983796 DOI: 10.1107/s1600536810009591] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Accepted: 03/13/2010] [Indexed: 11/10/2022]
Abstract
In the title compound, C23H31NO2, the lone pair on the nitrogen atom is oriented to facilitate intramolecular hydrogen bonding with the hydroxy group residing on the phenyl substituent. The five-membered ring adopts an envelope confornmation with the O atom at the flap. The absolute stereochemistry was verified by measurement of optical activity using a digital polarimeter.
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15
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Campbell IS, Edler KL, Parrott RW, Hitchcock SR, Ferrence GM. (6 S)-2,4-Di- tert-butyl-6-[(4 S,5 R)-3-isopropyl-4-methyl-5-phenyloxazolidin-2-yl]phenol. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o900-1. [PMID: 21580715 PMCID: PMC2983885 DOI: 10.1107/s1600536810009074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Accepted: 03/09/2010] [Indexed: 11/29/2022]
Abstract
The title oxazolidine compound, C27H39NO2, was synthesized from N-isopropylnorephedrine. The dihedral angle between the aromatic rings is 70.33 (5)°. The N atom of the heterocycle is oriented to allow intramolecular O—H⋯N hydrogen bonding with the hydroxy substituent.
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16
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Cruz A, Padilla-Martínez II, García-Báez EV. An efficient synthesis of aziridines from ephedrines. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Duguet N, Donaldson A, Leckie SM, Douglas J, Shapland P, Brown TB, Churchill G, Slawin AM, Smith AD. Chiral relay in NHC-mediated asymmetric β-lactam synthesis I; substituent effects in NHCs derived from (1R,2R)-cyclohexane-1,2-diamine. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.03.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Davies SG, Goodwin CJ, Hepworth D, Roberts PM, Thomson JE. On the Origins of Diastereoselectivity in the Alkylation of Enolates Derived from N-1-(1′-Naphthyl)ethyl-O-tert-butylhydroxamates: Chiral Weinreb Amide Equivalents. J Org Chem 2010; 75:1214-27. [DOI: 10.1021/jo902499s] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stephen G. Davies
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Christopher J. Goodwin
- AstraZeneca R&D Charnwood, Process R&D, Bakewell Road, Loughborough, Leicestershire LE11 5RH, United Kingdom
| | - David Hepworth
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Paul M. Roberts
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - James E. Thomson
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
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19
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Ananthi N, Balakrishnan U, Vinu A, Ariga K, Velmathi S. Chiral amide from (1S,2R)-(+)-norephedrine alkaloid in the enantioselective addition of diethylzinc to aryl and heteroaryl aldehydes. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.07.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Tailor D, Edler KL, Casper DM, Hitchcock SR, Ferrence GM. (5R,6S)-4-Isopropyl-5-methyl-6-phenyl-3-propanoyl-2H-1,3,4-oxadiazinan-2-one. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o1685-6. [PMID: 21582942 PMCID: PMC2969394 DOI: 10.1107/s1600536809022363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2009] [Accepted: 06/11/2009] [Indexed: 11/16/2022]
Abstract
The title compound, C16H22N2O3, was synthesized during the course of a study on (1R,2S)-norephedrine-derived 1,3,4-oxadiazinan-2-ones. The conformation adopted by the isopropyl group is pseudo-axial relative to the oxadiazinan core. The allylic strain contributes to this conformational arrangement.
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Affiliation(s)
- Dishant Tailor
- CB 4160, Department of Chemistry, Illinois State University, Normal, IL 61790, USA
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21
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Kocher JL, Edler KL, Bohling BA, Nora GP, Stafford C, Hitchcock SR, Ferrence GM. (5 S,6 R)-5-Methyl-6-phenyl-4-propyl-1,3,4-oxadiazinane-2-thione. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o1421-2. [PMID: 21583263 PMCID: PMC2969751 DOI: 10.1107/s1600536809019382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2009] [Accepted: 05/21/2009] [Indexed: 11/10/2022]
Abstract
The title molecule, C13H18N2OS, is an oxadiazinanthione derived from (1R,2S)-norephedrine. There are two molecules in the asymmetric. Both adopt roughly half-chair conformations; however, the 5-position carbon orients out of opposite faces of the oxadiazinanthiones plane in the two molecules. In the crystal structure, they are oriented as a dimer linked by a pair of N—H...S hydrogen bonds. The absolute configuration has been established from anomalous dispersion and confirms the known stereochemistry based on the synthetic procedure.
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22
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23
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Hitchcock SR, Davis RA, Richmond DM, Dore DD, Kuschel SL, Vaughn JF, Wolfe JA, Hamaker CG, Casper DM, Dingle J. Synthesis, asymmetric aldol reactions, and x-ray crystallography of some oxadiazinanone derivatives. J Heterocycl Chem 2008. [DOI: 10.1002/jhet.5570450502] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Knott SA, Hitchcock SR, Ferrence GM. (5S,6S)-4,5-Dimethyl-3-methyl-acryloyl-6-phenyl-1,3,4-oxadiazinan-2-one. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o1101. [PMID: 21202615 PMCID: PMC2961593 DOI: 10.1107/s1600536808013986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2008] [Accepted: 05/09/2008] [Indexed: 11/25/2022]
Abstract
The title compound, C15H18N2O3, is an example of an oxadiazinan-2-one with significant interaction between the N3-acyl and N4-methyl groups. These steric interactions result in a large torsion angle between the two carbonyl groups, not present with acyl substituents with less steric demand.
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Affiliation(s)
- Stanley A Knott
- CB 4160, Department of Chemistry, Illinois State University, Normal, IL 61790, USA
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25
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Addison LD, Dore DD, Hitchcock SR, Ferrence GM. (4R,5S)-5-Benzyl-4-isopropyl-1,3,4-oxadiazinan-2-one. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o1040-1. [PMID: 21202562 PMCID: PMC2961530 DOI: 10.1107/s1600536808013056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2008] [Accepted: 05/02/2008] [Indexed: 11/10/2022]
Abstract
The title compound, C(13)H(18)N(2)O(2), is an N(4)-isopropyl-l-phenyl-alanine-based oxadiazinanone. Although the two mol-ecules in the asymmetric unit are oriented appropriately for hydrogen bonding, the distance between the donor and acceptor atoms is large enough to support only weak, if any, hydrogen bonding. The absolute configuration is known based on the known starting compounds in the synthetic procedure.
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Affiliation(s)
- Lacey D Addison
- CB 4160, Department of Chemistry, Illinois State University, Normal, IL 61790, USA
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26
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Parrott RW, Hamaker CG, Hitchcock SR. Salicylaldehyde based oxazolidines as catalysts for the asymmetric addition of diethylzinc to aldehydes. J Heterocycl Chem 2008. [DOI: 10.1002/jhet.5570450336] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Parrott RW, Dore DD, Chandrashekar SP, Bentley JT, Morgan BS, Hitchcock SR. Enantioselective diethylzinc addition to aldehydes via chiral, non-racemic β-hydroxysalicylhydrazone catalysts. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.02.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Parrott RW, Hitchcock SR. β-Amino alcohols derived from (1R,2S)-norephedrine and (1S,2S)-pseudonorephedrine as catalysts in the asymmetric addition of diethylzinc to aldehydes. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2007.11.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Casper DM, Hitchcock SR. Preparation of Some Derivatives of N‐ tert‐Butyldecahydro‐3‐isoquinoline Carboxamide. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910701555659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- David M. Casper
- a Department of Chemistry , Illinois State University , Normal, Illinois, USA
| | - Shawn R. Hitchcock
- a Department of Chemistry , Illinois State University , Normal, Illinois, USA
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30
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Ephedrine derivatives, extraordinary tools for the study of stereogenic centers in tetra- to heptacoordinated complexes. Coord Chem Rev 2007. [DOI: 10.1016/j.ccr.2007.03.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Kanemasa S, Yanagita H. Synthesis of 3-(2-Pyridyl)-2-pyrazoline Derivatives as Candidates for Heterocyclic Chiral Ligands of the Chirality Relay Types. HETEROCYCLES 2007. [DOI: 10.3987/com-06-10981] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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32
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Vargas-Díaz G, López-Sandoval H, Vázquez-Palma AB, Flores-Alamo M, Peña-Hueso A, Sánchez-Ruíz SA, Flores-Parra A, Contreras R, Barba-Behrens N. Stereochemistry of optically active nickel(ii) and cobalt(ii) coordination compounds derived from N-acetyl aminoalcohols. Dalton Trans 2007. [DOI: 10.1039/b705195f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Bull SD, Davies SG, Garner AC, Parkes AL, Roberts PM, Sellers TGR, Smith AD, Tamayo JA, Thomson JE, Vickers RJ. On the origins of diastereoselectivity in the alkylation of diketopiperazine enolates. NEW J CHEM 2007. [DOI: 10.1039/b701628j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Groeper JA, Hitchcock SR, Ferrence GM. A scalable and expedient method of preparing diastereomerically and enantiomerically enriched pseudonorephedrine from norephedrine. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.11.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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35
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Dore DD, Burgeson JR, Davis RA, Hitchcock SR. Synthesis, reactivity and conformational stability of an l-phenylalanine derived oxadiazinanone. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Hoover TR, Groeper JA, Parrott RW, Chandrashekar SP, Finefield JM, Dominguez A, Hitchcock SR. Towards the development of oxadiazinanones as chiral auxiliaries: synthesis and application of N3-haloacetyloxadiazinanones. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.06.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Burgeson JR, Dore DD, Standard JM, Hitchcock SR. Conformational preferences of the aldol adducts of oxadiazinones. 1H NMR spectroscopy and computational studies of N4-methyl and N4-isopropyloxadiazinones. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.08.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Squire MD, Davis RA, Chianakas KA, Ferrence GM, Standard JM, Hitchcock SR. Synthesis, X-ray crystallography and computational studies concerning an oxadiazinone derived from d-camphor: a structural limitation of oxadiazinones as chiral auxiliaries. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2005.01.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Vaughn JF, Hitchcock SR. Oxadiazinones as chiral auxiliaries: increased diastereoselectivities in the glycolate aldol reaction of oxadiazinones. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.tetasy.2004.09.015] [Citation(s) in RCA: 11] [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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