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Luu HT, Wiesler S, Frey G, Streuff J. A Titanium(III)-Catalyzed Reductive Umpolung Reaction for the Synthesis of 1,1-Disubstituted Tetrahydroisoquinolines. Org Lett 2015; 17:2478-81. [DOI: 10.1021/acs.orglett.5b00987] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hieu-Trinh Luu
- Institut für Organische
Chemie, Albert-Ludwigs-Universität Freiburg, Albertstr.
21, 79104 Freiburg, Germany
| | - Stefan Wiesler
- Institut für Organische
Chemie, Albert-Ludwigs-Universität Freiburg, Albertstr.
21, 79104 Freiburg, Germany
| | - Georg Frey
- Institut für Organische
Chemie, Albert-Ludwigs-Universität Freiburg, Albertstr.
21, 79104 Freiburg, Germany
| | - Jan Streuff
- Institut für Organische
Chemie, Albert-Ludwigs-Universität Freiburg, Albertstr.
21, 79104 Freiburg, Germany
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Li X, Leonori D, Sheikh NS, Coldham I. Synthesis of 1-Substituted Tetrahydroisoquinolines by Lithiation and Electrophilic Quenching Guided by In Situ IR and NMR Spectroscopy and Application to the Synthesis of Salsolidine, Carnegine and Laudanosine. Chemistry 2013; 19:7724-30. [DOI: 10.1002/chem.201301096] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Indexed: 11/06/2022]
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DiRocco DA, Rovis T. Catalytic asymmetric α-acylation of tertiary amines mediated by a dual catalysis mode: N-heterocyclic carbene and photoredox catalysis. J Am Chem Soc 2012; 134:8094-7. [PMID: 22548244 PMCID: PMC3354013 DOI: 10.1021/ja3030164] [Citation(s) in RCA: 437] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cross-coupling reactions are among the most widely utilized methods for C-C bond formation; however, the requirement of preactivated starting materials still presents a major limitation. Methods that take direct advantage of the inherent reactivity of the C-H bond offer an efficient alternative to these methods, negating the requirement for substrate preactivation. In this process, two chemically distinct activation events culminate in the formation of the desired C-C bond with loss of H(2) as the only byproduct. Herein we report the catalytic asymmetric α-acylation of tertiary amines with aldehydes facilitated by the combination of chiral N-heterocyclic carbene catalysis and photoredox catalysis.
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Affiliation(s)
- Daniel A DiRocco
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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Seebach D. Erzeugung sekundärer, tertiärer und quartärer Zentren durch geminale Disubstitution von Carbonyl‐Sauerstoffatomen. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201003823] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dieter Seebach
- Laboratorium für Organische Chemie, Departement für Chemie und Angewandte Biowissenschaften, ETH‐Zürich, Hönggerberg HCI H331, Wolfgang‐Pauli‐Strasse 10, 8093 Zürich (Schweiz), Fax: (+41) 44‐632‐1144 http://infosee.ethz.ch/seebach/seebach.html
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Seebach D. Generation of Secondary, Tertiary, and Quaternary Centers by Geminal Disubstitution of Carbonyl Oxygens. Angew Chem Int Ed Engl 2010; 50:96-101. [DOI: 10.1002/anie.201003823] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dieter Seebach
- Laboratorium für Organische Chemie, Departement für Chemie und Angewandte Biowissenschaften, ETH‐Zürich, Hönggerberg HCI H331, Wolfgang‐Pauli‐Strasse 10, 8093 Zürich (Schweiz), Fax: (+41) 44‐632‐1144 http://infosee.ethz.ch/seebach/seebach.html
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Ruchirawat S, Chaisupakitsin M, Patranuwatana N, Cashaw JL, Davis VE. A Convenient Synthesis of Simple Tetrahydroisoquinolines. SYNTHETIC COMMUN 2006. [DOI: 10.1080/00397918408076803] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Nain Singh K, Singh P, Kaur A. 4,5‐Dihydrothiazoline—A New Protecting and Activating Group for Generation of α‐Aminocarbanions of Secondary Amines. SYNTHETIC COMMUN 2006. [DOI: 10.1080/00397910600941331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Kamal Nain Singh
- a Department of Chemistry , Panjab University , Chandigarh, India
| | - Paramjit Singh
- a Department of Chemistry , Panjab University , Chandigarh, India
| | - Amarjit Kaur
- a Department of Chemistry , Panjab University , Chandigarh, India
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Kauch M, Snieckus V, Hoppe D. Substitution of Hydroxybiaryls via Directed ortho-Lithiation of N-Silylated O-Aryl N-Isopropylcarbamates. J Org Chem 2005; 70:7149-58. [PMID: 16122233 DOI: 10.1021/jo0506938] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] Herein we report regioselective substitution reactions of a series of 2- and 3-hydroxybiaryls including BINOL via a new directed ortho-metalation procedure. O-Aryl N-isopropylcarbamates, conveniently prepared from phenols and isopropyl isocyanate, are temporarily and in situ N-protected by means of silyl triflates to form stable intermediates for low temperature lithiation reactions using butyllithium/TMEDA in diethyl ether. The resulting aryllithiums are efficiently substituted by a wide range of electrophilic reagents to afford functionalized biaryls in high yields. N-Desilylation already occurs during aqueous workup. The following deprotection of the urethanes to the corresponding phenols proceeds rapidly and in quantitative yields. Even sensitive substituents (e.g., CO2Me, CHO, SiMe3, I) in the products are preserved under mild alkaline conditions which have been established for carbamate ester cleavage. Furthermore, applications of ortho-substituted products in common cross-coupling reactions for further C-C bond formations are demonstrated.
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Affiliation(s)
- Matthias Kauch
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, D-48149 Münster, Germany
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Seebach D, Ertas̨ M, Locher R, Bernd Schweizer W. Tritylketone und Tritylenone. Beiträge zur sterisch erzwungenenMichael-Addition und zur diastereoselektiven Aldol-Addition. Helv Chim Acta 2004. [DOI: 10.1002/hlca.19850680133] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Picard JP. Silylmethylamines and Their Derivatives: Chemistry and Biological Activities. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2004. [DOI: 10.1016/s0065-3055(04)52004-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Regioselective Synthesis of Organolithiums by Deprotonation. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1460-1567(02)80033-2] [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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Guijarro A, Ortiz J, Yus M. O-tert-Butyl-N-(chloromethyl)-N-methyl carbamate as a source of the MeNHCH2− synthon. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01134-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Clark RD, Jahangir. Preparation of 1,3-disubstituted isoquinoline derivatives fromN-boc-3-substituted-1,2-dihydroisoquinolines. J Heterocycl Chem 1995. [DOI: 10.1002/jhet.5570320115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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An Unusual Rearrangement of a LithiatedN-Acyl-tetrahydroisoquinoline to an Amino-indan Skeleton and Structural Comparison of 3-Amino-2-methylindan- and -tetrahydronaphthalene-2-carboxylic Acids as Possible Building Blocks for Peptide-Turn Mimics. Helv Chim Acta 1993. [DOI: 10.1002/hlca.19930760721] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Seebach D, Pfammatter E, Gramlich V, Bremi T, Kühnle F, Portmann S, Tironi I. Diastereoselective Michael Additions of Chiral Imidazolidines to Trityl Enones. ACTA ACUST UNITED AC 1992. [DOI: 10.1002/jlac.1992199201188] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Alkylation ofN-boc-1,2,3,4-tetrahydroisoquinolines in the 1-position and its application to the synthesis of isoquinoline alkaloids. J Heterocycl Chem 1991. [DOI: 10.1002/jhet.5570280720] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Katritzky AR, Akutagawa K. Carbon dioxide: A reagent for the protection of nucleophilic centres and the simultaneous activation of electrophilic attack. Tetrahedron 1986. [DOI: 10.1016/0040-4020(86)80024-2] [Citation(s) in RCA: 14] [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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Seebach D, Aebi JD, Naef R, Weber T. ?-Alkylation of Amino Acids without Racemization. Preparation of Either (S)- or (R)-?-Methyldopa from (S)-Alanine. Helv Chim Acta 1985. [DOI: 10.1002/hlca.19850680118] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Seebach D, Lohmann JJ, Syfrig MA, Yoshifuji M. Alkylation of the isoquinoline skeleton in the 1-position. Tetrahedron 1983. [DOI: 10.1016/s0040-4020(01)91914-3] [Citation(s) in RCA: 71] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Seebach D, Beck AK, Mukhopadhyay T, Thomas E. Diastereoselective Synthesis of Nitroaldol Derivatives. Helv Chim Acta 1982. [DOI: 10.1002/hlca.19820650402] [Citation(s) in RCA: 172] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Seebach D, Yoshifuji M. 2-Bis (dimethylamino)phosphinoyl-1-lithio-1, 2, 3, 4-tetrahydroisoquinoline. A highly nucleophilic d1-reagent for the preparation of 1-substituted tetrahydroisoquinolines. Helv Chim Acta 1981. [DOI: 10.1002/hlca.19810640305] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Meyers A, Hellring S, Hoeve WT. Dipole stabilized α-amino carbanions. II. Alkylation of tetrahydroisoquinolines in the 1-position. Tetrahedron Lett 1981. [DOI: 10.1016/s0040-4039(01)92434-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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