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Milne JE, Storz T, Colyer JT, Thiel OR, Dilmeghani Seran M, Larsen RD, Murry JA. Iodide-catalyzed reductions: development of a synthesis of phenylacetic acids. J Org Chem 2011; 76:9519-24. [PMID: 21988471 DOI: 10.1021/jo2018087] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new convenient and scalable synthesis of phenylacetic acids has been developed via the iodide catalyzed reduction of mandelic acids. The procedure relies on in situ generation of hydroiodic acid from catalytic sodium iodide, employing phosphorus acid as the stoichiometric reductant.
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Affiliation(s)
- Jacqueline E Milne
- Chemical Process Research and Development, Amgen Inc., Thousand Oaks, California 91320, USA.
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Affiliation(s)
- Jean C. Baum
- Chemical Process R&D, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
| | - Jacqueline E. Milne
- Chemical Process R&D, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
| | - Jerry A. Murry
- Chemical Process R&D, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
| | - Oliver R. Thiel
- Chemical Process R&D, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
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3
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Affiliation(s)
- Jacqueline E. Milne
- Chemical Process R&D, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320;
| | - Jerry A. Murry
- Chemical Process R&D, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320;
| | - Anthony King
- Chemical Process R&D, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320;
| | - Robert D. Larsen
- Chemical Process R&D, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320;
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Chan J, Baucom KD, Murry JA. Rh(II)-catalyzed intermolecular oxidative sulfamidation of aldehydes: a mild efficient synthesis of N-sulfonylcarboxamides. J Am Chem Soc 2007; 129:14106-7. [PMID: 17967011 DOI: 10.1021/ja073872a] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Johann Chan
- Chemical Process Research and Development, Amgen Inc., Thousand Oaks, California 91320, USA.
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Yoshikawa N, Doyle A, Tan L, Murry JA, Akao A, Kawasaki M, Sato K. An Efficient and Scalable Synthesis of Substituted Phenanthrenequinones by Intramolecular Friedel−Crafts Reaction of Imidazolides. Org Lett 2007; 9:4103-6. [PMID: 17880225 DOI: 10.1021/ol071261h] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient synthesis of 9,10-phenanthrenequinones is described. The two carbonyl groups were introduced by an orthoselective intermolecular Friedel-Crafts reaction of 3-methoxyphenol with ethyl chlorooxoacetate. The formation of a biaryl bond by Suzuki-Miyaura coupling reaction, followed by the hydrolysis of the ester, gave a biaryloxoacetic acid. Treatment of this acid with CDI gave the corresponding imidazolide. The ring closure to the desired phenanthrenequinone was accomplished by intramolecular Friedel-Crafts reaction of the imidazolide promoted by TiCl(4).
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Affiliation(s)
- Naoki Yoshikawa
- Department of Process Research, Merck Research Laboratories, Merck & Co., Inc., Rahway, New Jersey 07065, USA.
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Abstract
Efficient cascade couplings to synthesize functionalized piperidinones 1 and bispidines 2 and 3 have been developed. Simple modifications to the reaction conditions allow for the highly controlled and selective formation of each compound. In addition, the cis isomer of 1 can be selectively obtained under acidic conditions, while the preparation of the corresponding trans isomer can also be readily realized through a base-catalyzed, dynamic crystallization-driven process.
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Affiliation(s)
- Feng Xu
- Department of Process Research, Merck Research Laboratories, Rahway, NJ 07065, USA.
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Abstract
Under conventional heat (135-145 degrees C) or microwave irradiation and 1 equiv of acetic anhydride, ortho-substituted aryl-oximes undergo a novel sp3 C-H activated cyclization to produce the corresponding isoindoles, and aliphatic oximes afford the corresponding dihydropyrroles. The cyclization occurs with various substrates in good yield (46-82%) leading to unique spiro-fused and cyclic imines. An initial mechanistic investigation suggests the reaction occurs via a nitrenium or vinyl nitrene intermediate. [reaction: see text]
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Affiliation(s)
- Cécile G Savarin
- Department of Process Research, Merck Research Laboratories, Merck & Co., P.O. Box 2000, Rahway, NJ 07065, USA.
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Savarin CG, Boice GN, Murry JA, Corley E, DiMichele L, Hughes D. Direct N-Acetyl Enamine Formation: Lithium Bromide Mediated Addition of Methyllithium to Nitriles. Org Lett 2006; 8:3903-6. [PMID: 16928034 DOI: 10.1021/ol061318k] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An improved protocol for N-acetyl enamine formation is disclosed which involves LiBr-mediated addition of MeLi to substituted nitriles. The resulting enamides are isolated in high yields and excellent purity which permits subsequent hydrogenation at very low catalyst loading.
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Affiliation(s)
- Cécile G Savarin
- Department of Process Research, Merck Research Laboratories, Merck & Company, P.O. Box 2000, Rahway, NJ 07065, USA.
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Xu F, Murry JA, Simmons B, Corley E, Fitch K, Karady S, Tschaen D. Stereocontrolled Synthesis of Trisubstituted Cyclopropanes: Expedient, Atom-Economical, Asymmetric Syntheses of (+)-Bicifadine and DOV21947. Org Lett 2006; 8:3885-8. [PMID: 16898842 DOI: 10.1021/ol061650w] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] An expedient, atom-economical, asymmetric synthesis of 1-aryl-3-azabicyclo[3.1.0]hexanes, including (+)-Bicifadine and DOV21947, in a single-stage through process without isolation of any intermediates has been developed. The key of this synthesis is the in-depth mechanistic understanding of the complicated epoxy nitrile coupling at each reaction stage. Therefore, the desired trisubstituted cyclopropane can be prepared in high ee and yield by controlling the reaction pathway through manipulating the nitrile anion aggregation state.
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Affiliation(s)
- Feng Xu
- Department of Process Research, Merck Research Laboratories, Rahway, New Jersey 07065, USA.
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Albaneze-Walker J, Bazaral C, Leavey T, Dormer PG, Murry JA. Improved carbonylation of heterocyclic chlorides and electronically challenging aryl bromides. Org Lett 2005; 6:2097-100. [PMID: 15200294 DOI: 10.1021/ol0498287] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Optimized conditions are described that effect the carbonylation of diverse heterocyclic chlorides to yield the desired alkyl esters. In addition, bromoanilines and bromoanisoles, which normally are poor substrates under standard carbonylation protocols, were efficiently converted to the desired products under these new conditions. The nature of the metal bidentate ligand complex was found to be critical. Specifically, a correlation between ligand bite angle and catalytic efficiency is documented.
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Affiliation(s)
- Jennifer Albaneze-Walker
- Process Research, Merck Research Laboratories, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, USA.
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Corley EG, Conrad K, Murry JA, Savarin C, Holko J, Boice G. Direct Synthesis of 4-Arylpiperidines via Palladium/Copper(I)-Cocatalyzed Negishi Coupling of a 4-Piperidylzinc Iodide with Aromatic Halides and Triflates. J Org Chem 2004; 69:5120-3. [PMID: 15255748 DOI: 10.1021/jo049647i] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A general procedure for the synthesis of 4-arylpiperidines via the coupling of 4-(N-BOC-piperidyl)zinc iodide with aryl halides and triflates is presented. The reaction requires cocatalysis with both Cl(2)Pd(dppf) and a copper(I) species. An improved, safer procedure for the activation of zinc dust is also presented.
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Affiliation(s)
- Edward G Corley
- Departments of Process Research, and Chemical Engineering Research & Development, Merck Research Laboratories, Merck and Co. Inc., P.O. Box 2000, Rahway, NJ 07065, USA.
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Soheili A, Albaneze-Walker J, Murry JA, Dormer PG, Hughes DL. Efficient and general protocol for the copper-free sonogashira coupling of aryl bromides at room temperature. Org Lett 2004; 5:4191-4. [PMID: 14572282 DOI: 10.1021/ol035632f] [Citation(s) in RCA: 231] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text]. A mild and general protocol for the copper-free Sonogashira coupling of aryl bromides with acetylenes has been developed. The use of (AllylPdCl)2 and P(t-Bu)3 provides the active Pd(0) catalyst that allows subsequent coupling of various alkynes at room temperature with good to excellent yields.
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Affiliation(s)
- Arash Soheili
- Department of Process Research, Merck Research Laboratories, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, USA.
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Abstract
A one-pot synthesis of substituted imidazoles is described. The cornerstone of this methodology involves the thiazolium-catalyzed addition of an aldehyde to an acyl imine to generate the corresponding alpha-ketoamide in situ followed by ring closure to the imidazole in a one-pot sequence. The extension of this methodology to the one-pot synthesis of substituted oxazoles and thiazoles is also described. [reaction: see text]
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Affiliation(s)
- Doug E Frantz
- Department of Process Research, Merck Research Laboratories, Merck & Co., 466 Devon Park Drive, Wayne, PA 19087, USA
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Murry JA. Synthetic methodology utilized to prepare substituted imidazole p38 MAP kinase inhibitors. Curr Opin Drug Discov Devel 2003; 6:945-65. [PMID: 14758763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
In this manuscript, we review the synthetic methods utilized to prepare a variety of imidazole p38 MAP kinase inhibitors. Several methods have been used to prepare the key templates that are discussed; manipulation of the heterocycles around the imidazole core are also considered in the context of their biological activity. Finally, we discuss new synthetic methodologies discovered in our laboratories, which are useful for the preparation of a member of this class of tetrasubstituted imidazole p38 inhibitors. The optimal route involves the thiazolium-catalyzed cross-benzoin condensation of a pyridine aldehyde with an N-acylimine. The pyridine aldehyde was prepared in three steps and 68% yield from 2-chloro-4-cyanopyridine. The tosylamide precursor to the N-acylimine was prepared in two steps and 93% yield from isonipecotic acid. We demonstrate the scope and some preliminary mechanistic studies concerning this new reaction. The resulting alpha-ketoamide is then cyclized with methyl ammonium acetate to provide the desired tetrasubstituted imidazole. Cbz deprotection and formation of a pharmaceutically acceptable salt completes the synthesis in six steps and 38% overall yield.
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Affiliation(s)
- Jerry A Murry
- Merck & Co Inc, Merck Research Laboratories, Process Research Department, PO Box 2000, Rahway, NJ 07065, USA.
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Frey LF, Marcantonio KM, Chen CY, Wallace DJ, Murry JA, Tan L, Chen W, Dolling UH, Grabowski EJ. Practical synthesis of a highly functionalized thiazole ketone. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00878-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Springfield SA, Marcantonio K, Ceglia S, Albaneze-Walker J, Dormer PG, Nelson TD, Murry JA. A convenient one-pot synthesis of 1,8-naphthyridones. J Org Chem 2003; 68:4598-9. [PMID: 12762782 DOI: 10.1021/jo034321f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this paper, we disclose an efficient one-pot procedure for the preparation of substituted 1,8-naphthyridin-4-one analogues. Previous efforts to effect this type of transformation were complicated by the formation of benzene tricarboxylate. Via the use of excess base, the impurity formation was completely inhibited. This allowed for the clean preparation of the desired intermediate and subsequent formation of naphthyridone analogues in a single flask, which could then be crystallized directly from the reaction mixture in good yield and high purity.
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Affiliation(s)
- Shawn A Springfield
- Department of Process Research, Merck & Co. Inc., P.O. Box 2000, Rahway, New Jersey 07065-0900, USA.
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Savarin CG, Murry JA, Dormer PG. An expedient synthesis of highly functionalized naphthyridones and quinolines from a common N-aryl pyridinone template. Org Lett 2002; 4:2071-4. [PMID: 12049520 DOI: 10.1021/ol025950z] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
[reaction: see text] We describe herein a new base-mediated process for the formation of N-arylpyridinones 2 and their use for the preparation of naphthyridones and quinolines. The cyclization of various hindered enamines with methyl propiolate proceeds efficiently in the presence of NaOH to afford the corresponding N-arylpyridinones. These substrates were then found to undergo subsequent cyclizations to afford highly functionalized naphthyridones and quinolines.
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Affiliation(s)
- Cécile G Savarin
- Department of Process Research, Merck Research Laboratories, P.O. Box 2000, Rahway, New Jersey 07065, USA.
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Hudlicky T, Tsunoda T, Gadamasetti KG, Murry JA, Keck GE. Yeast-mediated resolution of .beta.-keto esters of prochiral alcohols. J Org Chem 2002. [DOI: 10.1021/jo00011a031] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Murry JA, Frantz DE, Soheili A, Tillyer R, Grabowski EJ, Reider PJ. Synthesis of alpha-amido ketones via organic catalysis: thiazolium-catalyzed cross-coupling of aldehydes with acylimines. J Am Chem Soc 2001; 123:9696-7. [PMID: 11572700 DOI: 10.1021/ja0165943] [Citation(s) in RCA: 168] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J A Murry
- Process Research Department, Merck Research Laboratories, Merck and Co. Inc., P.O. Box 2000, Rahway, New Jersey 07065, USA
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Ragan JA, Murry JA, Castaldi MJ, Conrad AK, Jones BP, Li B, Makowski TW, McDermott R, Sitter BJ, White TD, Young GR. Investigation of Methods for Seven-Membered Ring Synthesis: A Practical Synthesis of 4-Oxo-5,6,7,8-tetrahydro-4H-cyclohepta[b]furan-3-carboxylic Acid. Org Process Res Dev 2001. [DOI: 10.1021/op0102159] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John A. Ragan
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Jerry A. Murry
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Michael J. Castaldi
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Alyson K. Conrad
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Brian P. Jones
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Bryan Li
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Teresa W. Makowski
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Ruth McDermott
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Barb J. Sitter
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Timothy D. White
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
| | - Gregory R. Young
- Chemical Research and Development, Pfizer Global Research & Development, Eastern Point Road, Groton, CT 06340, U.S.A
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Evans DA, Barnes DM, Johnson JS, Lectka T, von Matt P, Miller SJ, Murry JA, Norcross RD, Shaughnessy EA, Campos KR. Bis(oxazoline) and Bis(oxazolinyl)pyridine Copper Complexes as Enantioselective Diels−Alder Catalysts: Reaction Scope and Synthetic Applications. J Am Chem Soc 1999. [DOI: 10.1021/ja991191c] [Citation(s) in RCA: 207] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David A. Evans
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - David M. Barnes
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Jeffrey S. Johnson
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Thomas Lectka
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Peter von Matt
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Scott J. Miller
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Jerry A. Murry
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Roger D. Norcross
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Eileen A. Shaughnessy
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Kevin R. Campos
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
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Affiliation(s)
- Gary E. Keck
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
| | | | - Jerry A. Murry
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
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Evans DA, Kozlowski MC, Murry JA, Burgey CS, Campos KR, Connell BT, Staples RJ. C2-Symmetric Copper(II) Complexes as Chiral Lewis Acids. Scope and Mechanism of Catalytic Enantioselective Aldol Additions of Enolsilanes to (Benzyloxy)acetaldehyde. J Am Chem Soc 1999. [DOI: 10.1021/ja9829822] [Citation(s) in RCA: 319] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Evans DA, Murry JA, Kozlowski MC. C2-Symmetric Copper(II) Complexes as Chiral Lewis Acids. Catalytic Enantioselective Aldol Additions of Silylketene Acetals to (Benzyloxy)acetaldehyde. J Am Chem Soc 1996. [DOI: 10.1021/ja960712i] [Citation(s) in RCA: 213] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David A. Evans
- Department of Chemistry, Harvard University Cambridge, Massachusetts 02138
| | - Jerry A. Murry
- Department of Chemistry, Harvard University Cambridge, Massachusetts 02138
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Evans DA, Murry JA, von Matt P, Norcross RD, Miller SJ. C2-Symmetric Cationic Copper(II) Complexes as Chiral Lewis Acids: Counterion Effects in the Enantioselective Diels–Alder Reaction. ACTA ACUST UNITED AC 1995. [DOI: 10.1002/anie.199507981] [Citation(s) in RCA: 253] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Evans DA, Murry JA, Matt PV, Norcross RD, Miller SJ. C2-Symmetrische, kationische Kupfer(II)-Komplexe als chirale Lewis-Säuren – Einfluß des Gegenions bei enantioselektiven Diels-Alder-Reaktionen. Angew Chem Int Ed Engl 1995. [DOI: 10.1002/ange.19951070711] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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