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Dutta AK, Linden A, Zoppi L, Baldridge KK, Siegel JS. Extended Corannulenes: Aromatic Bowl/Sheet Hybridization. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503553] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Huang W, Ye JL, Zheng W, Dong HQ, Wei BG. Radical migration-addition of N-tert-butanesulfinyl imines with organozinc reagents. J Org Chem 2013; 78:11229-37. [PMID: 24160561 DOI: 10.1021/jo401640c] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel migration-addition sequence was discovered for the reaction of enantioenriched N-tert-butanesulfinyl iminoacetate 1a with functionalized benzylzinc bromide reagents, producing tert-leucine derivatives in excellent diastereoselectivity (dr 98:2). The absolute configurations of two new chiral centers were unambiguously assigned by chemical transformations and X-ray crystallography. In addition, the regio- and diastereoselectivities of this novel reaction were both explained through the key N-sulfinamine intermediate M6 generated by the tert-butyl radical attack on the imine. Computational analysis of this reaction process, which was performed at the B3LYP/6-311++G(3df,2p)//B3LYP/6-31G*-LANL2DZ level, also supported our proposed two-stage mechanism.
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Affiliation(s)
- Wei Huang
- Department of Chemistry and Institutes of Biomedical Sciences, Fudan University , 220 Handan Road, Shanghai 200433, China
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4
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Asymmetric synthesis of conformationally constrained L-AP4 analogues using chiral sulfinyl auxiliary. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.10.085] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Affiliation(s)
- Jun Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, PR China
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Pérez-Fuertes Y, Taylor JE, Tickell DA, Mahon MF, Bull SD, James TD. Asymmetric Strecker synthesis of α-arylglycines. J Org Chem 2011; 76:6038-47. [PMID: 21627154 DOI: 10.1021/jo200528s] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A practically simple three-component Strecker reaction for the asymmetric synthesis of enantiopure α-arylglycines has been developed. Addition of a range of aryl-aldehydes to a solution of sodium cyanide and (S)-1-(4-methoxyphenyl)ethylamine affords highly crystalline (S,S)-α-aminonitriles that are easily obtained in diastereomerically pure form. Heating the resultant (S,S)-α-aminonitriles in 6 M aqueous HCl at reflux resulted in cleavage of their chiral auxiliary fragments and concomitant hydrolysis of their nitrile groups to afford enantiopure (S)-α-arylglycines. The enantiopurities of these (S)-α-arylglycines were determined via derivatization of their corresponding methyl esters with 2-formylphenylboronic acid and (S)-BINOL, followed by (1)H NMR spectroscopic analysis of the resultant mixtures of diastereomeric iminoboronate esters.
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Genrich F, Schaumann E. Silicon- and sulfur-mediated synthesis of benzoannulated cyclooctanols. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.08.092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zhang D, Yuan C. Highly Enantioselective Synthesis of β-Aminophosphinates with Two Stereogenic Atoms and Their Conversion into Optically Pure Ethyl β-Amino-H-phosphinates. Chemistry 2009; 15:4088-101. [DOI: 10.1002/chem.200802248] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Hashmi ASK, Schäfer S, Bats JW, Frey W, Rominger F. Gold Catalysis and Chiral Sulfoxides: Enantioselective Synthesis of Dihydroisoindol-4-ols. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800656] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Alimardanov A, Schmid J, Afragola J, Khafizova G. Practical Asymmetric Synthesis of Trifluoromethyl-Containing Aminoester Using a Modified Davis Protocol. Org Process Res Dev 2008. [DOI: 10.1021/op700259d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Asaf Alimardanov
- Wyeth Research, 401 North Middletown Road, Pearl River, New York 10965, U.S.A
| | - Jean Schmid
- Wyeth Research, 401 North Middletown Road, Pearl River, New York 10965, U.S.A
| | - Jay Afragola
- Wyeth Research, 401 North Middletown Road, Pearl River, New York 10965, U.S.A
| | - Gulnaz Khafizova
- Wyeth Research, 401 North Middletown Road, Pearl River, New York 10965, U.S.A
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11
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Radix S, Barret R. Total synthesis of two natural phenanthrenes: confusarin and a regioisomer. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.09.052] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Botuha C, Chemla F, Ferreira F, Pérez-Luna A, Roy B. Allenylzinc reagents: new trends and synthetic applications. NEW J CHEM 2007. [DOI: 10.1039/b706541h] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Nicolaou KC, Estrada AA, Zak M, Lee SH, Safina BS. A Mild and Selective Method for the Hydrolysis of Esters with Trimethyltin Hydroxide. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200462207] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Nicolaou KC, Estrada AA, Zak M, Lee SH, Safina BS. A Mild and Selective Method for the Hydrolysis of Esters with Trimethyltin Hydroxide. Angew Chem Int Ed Engl 2005; 44:1378-82. [PMID: 15674985 DOI: 10.1002/anie.200462207] [Citation(s) in RCA: 302] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K C Nicolaou
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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15
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Interesting by-products in the synthesis of chiral α-aminophosphinates from enantiopure sulfinimines. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2003.12.151] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Sorochinsky A, Voloshin N, Markovsky A, Belik M, Yasuda N, Uekusa H, Ono T, Berbasov DO, Soloshonok VA. Convenient asymmetric synthesis of beta-substituted alpha,alpha-difluoro-beta-amino acids via Reformatsky reaction between Davis' N-sulfinylimines and ethyl bromodifluoroacetate. J Org Chem 2003; 68:7448-54. [PMID: 12968899 DOI: 10.1021/jo030082k] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The enantiopure Davis' N-sulfinylimines were found to be efficient as chiral imine equivalents in the high-temperature Reformatsky-type additions with BrZnCF(2)COOEt affording an efficient approach to the enantiomerically pure alpha,alpha-difluoro-beta-amino acids. High chemical and stereochemical yields (drs > 9:1, and as high as 99:1) render this method immediately useful for preparing the target amino acids.
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Affiliation(s)
- Alexander Sorochinsky
- Institute of Bioorganic Chemistry and Petrochemistry, Ukrainian Academy of Sciences, Kiev-94, 253660, Ukraine.
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Jacobsen MF, Skrydstrup T. Asymmetric Mannich-type reactions for the synthesis of aspartic acid derivatives from chiral N-tert-butanesulfinylimino esters. J Org Chem 2003; 68:7112-4. [PMID: 12946161 DOI: 10.1021/jo034436j] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Addition of ketene acetals to sulfinimines derived from homochiral N-tert-butanesulfinamide using various Lewis acids furnishes derivatives of aspartic acid in diastereomeric ratios up to 97:3. Following an easy removal of the N-tert-butanesulfinyl chiral auxiliary, optical active beta-amino esters are obtained.
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Affiliation(s)
- Mikkel F Jacobsen
- Department of Chemistry, University of Aarhus, Langelandsgade 140, 8000 Aarhus C, Denmark
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Li BF, Yuan K, Zhang MJ, Wu H, Dai LX, Wang QR, Hou XL. Highly diastereoselective strecker reaction of enolizable aliphatic sulfinimines. J Org Chem 2003; 68:6264-7. [PMID: 12895059 DOI: 10.1021/jo034477f] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reaction of chiral sulfinimines 1c-g derived from aliphatic aldehydes with TMSCN in the presence of CsF gave alpha-amino nitriles in high diastereoselectivity and yield. alpha,beta-Diamino acid derivatives were also obtained in high diastereoselectivity from the reaction of 2-aziridinesulfinimines 1h and 1i followed by ring-opening of the products with thiophenol. The presence of hydrogen at the alpha-position of the C=N double bond is crucial in this TMSCN addition reaction.
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Affiliation(s)
- Bin-Feng Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
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Soloshonok VA, Ohkura H, Sorochinsky A, Voloshin N, Markovsky A, Belik M, Yamazaki T. Convenient, large-scale asymmetric synthesis of β-aryl-substituted α,α-difluoro-β-amino acids. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)01103-6] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Acherki H, Alvarez-Ibarra C, Alfonso-de-Dios, Quiroga ML. Stereoselective cyanosilylation of α-sulfinylketimines or its covalently stabilized enamine tautomers. Synthesis of enantiomerically pure α-sulfinylmethyl-α-amino nitriles. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00234-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bharatam PV, Amita, Kaur D. Theoretical studies on the S?N interaction in sulfinamides. J PHYS ORG CHEM 2002. [DOI: 10.1002/poc.465] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Synthesis of enantiomerically pure ethylenediamines from chiral sulfinimines: a new twist to the Strecker reaction. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00886-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Boesten WH, Seerden JP, de Lange B, Dielemans HJ, Elsenberg HL, Kaptein B, Moody HM, Kellogg RM, Broxterman QB. Asymmetric Strecker Synthesis of α-Amino Acids via a Crystallization-Induced Asymmetric Transformation Using (R)-Phenylglycine Amide as Chiral Auxiliary. Org Lett 2001; 3:1121-4. [PMID: 11348174 DOI: 10.1021/ol007042c] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text]. Diastereoselective Strecker reactions based on (R)-phenylglycine amide as chiral auxiliary are reported. The Strecker reaction is accompanied by an in situ crystallization-induced asymmetric transformation, whereby one diastereomer selectively precipitates and can be isolated in 76-93% yield and dr > 99/1. The diastereomerically pure alpha-amino nitrile obtained from pivaldehyde (R1 = t-Bu, R2 = H) was converted in three steps to (S)-tert-leucine in 73% yield and >98% ee.
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Affiliation(s)
- W H Boesten
- DSM Research Life Sciences-Organic Chemistry and Biocatalysis, P.O. Box 18, 6160 MD Geleen, and Syncom B.V., Kadijk 3, 9747 AT Groningen, The Netherlands
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The asymmetric synthesis of unnatural α-amino acids as building blocks for complex molecule synthesis. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1047-773x(01)80004-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Davis FA, Lee S, Zhang H, Fanelli DL. Applications of the sulfinimine-mediated asymmetric strecker synthesis to the synthesis of alpha-alkyl alpha-amino acids. J Org Chem 2000; 65:8704-8. [PMID: 11112592 DOI: 10.1021/jo001179z] [Citation(s) in RCA: 93] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Addition of Et(2)AlCN and i-PrOH to ketosulfinimines (N-sulfinyl imines) affords corresponding alpha-alkyl alpha-amino nitriles in moderate to good yields. The diastereoselectivity is largely dependent on the E/Z isomer ratio of the ketosulfinimine. Hydrolysis of the diastereomerically pure amino nitriles affords enantiopure alpha-alkyl alpha-amino acids in moderate to good yields.
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Affiliation(s)
- F A Davis
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, USA.
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Davis FA, Srirajan V, Fanelli DL, Portonovo P. Concise asymmetric synthesis of beta-hydroxy alpha-amino acids using the sulfinimine-mediated asymmetric Strecker synthesis: phenylserine and beta-hydroxyleucine. J Org Chem 2000; 65:7663-6. [PMID: 11076632 DOI: 10.1021/jo000559h] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- F A Davis
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, USA.
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Zhou P, Chen BC, Davis FA. Syntheses and reactions of sulfinimines. ADVANCES IN SULFUR CHEMISTRY 2000. [DOI: 10.1016/s1874-5296(00)80020-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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28
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Highly Efficient Deprotection of N-p-Toluenesulfinyl Group of β-Branched Baylis–Hillman Adducts by Using Amberlite IR-120 (Plus) Ion-Exchange Resin. Tetrahedron 2000. [DOI: 10.1016/s0040-4020(99)01064-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Davis FA, Srirajan V, Titus DD. Efficient Asymmetric Synthesis of beta-Fluoro alpha-Amino Acids. J Org Chem 1999; 64:6931-6934. [PMID: 11674714 DOI: 10.1021/jo990947n] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Franklin A. Davis
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122
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Vicario JL, Badía D, Domínguez E, Crespo A, Carrillo L, Anakabe E. Asymmetric synthesis of arylglycine amino acids using (S,S)-(+)-pseudoephedrine derived amides. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)01475-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
Various methodologies published in the literature dealing with alpha-amino carboxylic acid asymmetric synthesis are presented in a digest form. In each case, only some recent or most typical works are mentioned.
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Affiliation(s)
- M Calmes
- Laboratoire des Aminoacides, Peptides et Protéines, UMR-CNRS 5810, Universités Montpellier I, France
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Davis FA, Zhang Y, Andemichael Y, Fang T, Fanelli DL, Zhang H. Improved Synthesis of Enantiopure Sulfinimines (Thiooxime S-Oxides) from p-Toluenesulfinamide and Aldehydes and Ketones. J Org Chem 1999. [DOI: 10.1021/jo9820622] [Citation(s) in RCA: 176] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Franklin A. Davis
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122
| | - Yulian Zhang
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122
| | - Yemane Andemichael
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122
| | - Tianan Fang
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122
| | - Dean L. Fanelli
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122
| | - Huiming Zhang
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122
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Vergne C, Bouillon JP, Chastanet J, Bois-Choussy M, Zhu J. Asymmetric synthesis of 3,5-bis(isopropyloxy)-4-methoxyphenyl glycine by way of a diastereoselective Strecker reaction and an Evans electrophilic amination reaction. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0957-4166(98)00312-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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