[
    {
        "id": "authors:p2rzv-gj842",
        "collection": "authors",
        "collection_id": "p2rzv-gj842",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20151020-124113150",
        "type": "article",
        "title": "Small-Ring Compounds. XXXI. Cyclobutane Derivatives from Adducts of Cyclohexenylacetylene and Fluorochloroethylenes",
        "author": [
            {
                "family_name": "Sharts",
                "given_name": "Clay M.",
                "clpid": "Sharts-C-M"
            },
            {
                "family_name": "Roberts",
                "given_name": "John D.",
                "clpid": "Roberts-J-D"
            }
        ],
        "abstract": "Cycloadditions of 1-ethynylcyclohex-1-ene with trifluorochloroethylene and difluorodichloroethylene gave 1,1,2 trifluoro-2-chloro- (IV) and 1,1-difluoro-2,2-dichloro-3(cyclohex-1-enyl-cyclobutene (XI), respectively. Both IV and XI were hydrolyzed by sulfuric acid to the corresponding monoketones, 2-fluoro-2-chloro- and 2,2-dichloro-3-(cyclohex-1-enyl)-cyclobutenones. With iodide and ethoxide ions IV or XI appeared to give S_N2' displacement products. Diels-Alder adducts were obtained from IV and maleic anhydride or dicarbethoxyacetylene. The triethylamine-catalyzed rearrangement of XI at 150\u00ba gave 1,1 difluoro-2,4-dichloro-3-(cyclohex-1-enyl)-cyclobutene (XXXI), but at 180\u00ba an unexpected elimination rearrangement led to 2-fluoro-1,3-dichloro-5,6,7,8-tetrahydronaphthalene (XXXIII).",
        "doi": "10.1021/ja01465a032",
        "issn": "0002-7863",
        "publisher": "American Chemical Society",
        "publication": "Journal of the American Chemical Society",
        "publication_date": "1961-02-01",
        "series_number": "4",
        "volume": "83",
        "issue": "4",
        "pages": "871-878"
    },
    {
        "id": "authors:5qe3y-58e53",
        "collection": "authors",
        "collection_id": "5qe3y-58e53",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20151021-100828582",
        "type": "article",
        "title": "Anomalous Spin-Spin Splitting in Nuclear Magnetic Resonance Spectra of Cyclobutenes",
        "author": [
            {
                "family_name": "Sharts",
                "given_name": "Clay M.",
                "clpid": "Sharts-C-M"
            },
            {
                "family_name": "Roberts",
                "given_name": "John D.",
                "clpid": "Roberts-J-D"
            }
        ],
        "abstract": "A spectacular failure of F-F spin-spin coupling constants, A_(ij), to decrease monotonically with the number of chemical bonds separating nuclei i and j has been deduced from the nuclear magnetic resonance (n.m.r.) spectrum of perfluorodimethylethylamine. The current importance attached to the use of n.m.r. spectra as a tool for establishment of organic structures prompts us to report a number of similarly anomalous H-F spin-spin coupling constants in cyclobutene derivatives.",
        "doi": "10.1021/ja01561a072",
        "issn": "0002-7863",
        "publisher": "American Chemical Society",
        "publication": "Journal of the American Chemical Society",
        "publication_date": "1957-02-01",
        "series_number": "4",
        "volume": "79",
        "issue": "4",
        "pages": "1008-1008"
    }
]