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Griffith AK, Vanos CM, Lambert TH. Organocatalytic Carbonyl-Olefin Metathesis. J Am Chem Soc 2012; 134:18581-4. [DOI: 10.1021/ja309650u] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Allison K. Griffith
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Christine M. Vanos
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Tristan H. Lambert
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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Schaumann E, Oppermann G, Stranberg M, Moore HW. New Syntheses and Ring Expansion Reactions of Cyclobutenimines. Aust J Chem 2010. [DOI: 10.1071/ch10318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Two routes are reported for the synthesis of iminocyclobutenones having N-(het)aryl substitution: an addition/substitution sequence starting with cyclobutenediones and an aza-Wittig method. A new synthetic route to N-alkyl derivatives is also presented. This involves O-alkylation of 3-alkylamino-1,2-cyclobutenediones using Meerwein’s reagent and subsequent deprotonation under non-hydrolytic conditions. Lithium organyls were found to add to the remaining carbonyl group. The resulting tertiary alcohols undergo ring enlargement on heating in xylene to give 4-aminophenols, 4-amino-1-naphthols, or cyclopenta-annulated quinolines from 4-vinyl, 4-aryl, and 4-alkynyl derivatives, respectively.
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E. Kaufmann D, A. Zapolｫskii V, C. Namyslo J, E. W. Adam A. Chemistry of Polyhalogenated Nitrobutadienes, 1: A New Syn- thesis of Perfunctionalized 3-Amino-4-nitrothiophenes. HETEROCYCLES 2004. [DOI: 10.3987/com-04-10020] [Citation(s) in RCA: 23] [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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Nørkjær K, Senning A. 1-Alkynyl Disulfides: Their Characterization and Their 1-Thiapropargyl — 3-Thiaallenyl Rearrangements. ACTA ACUST UNITED AC 1993. [DOI: 10.1002/cber.19931260113] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Schaumann E, Rühter G. Thioketone und Enthiolate durch 1,3-anionische Cycloreversion von Dithiolan-Derivaten. ACTA ACUST UNITED AC 1988. [DOI: 10.1002/cber.19881210623] [Citation(s) in RCA: 13] [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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Schaumann E, Scheiblich S, Wriede U, Adiwidjaja G. Thioketen-Synthesen, VII. Thioketene durch [3 + 2]-Cycloreversion von 1,3-Dithiolan-Derivaten. ACTA ACUST UNITED AC 1988. [DOI: 10.1002/cber.19881210624] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Belen'Kii L. The Literature of Heterocyclic Chemistry, Part III. ADVANCES IN HETEROCYCLIC CHEMISTRY VOLUME 44 1988. [DOI: 10.1016/s0065-2725(08)60264-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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