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    Palladium catalysed oligomerization of 1-alkynes

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    Author
    Hunt, Ann Louise Beal
    Date
    1975
    Advisor
    Billings, W. E.
    Degree
    Master of Arts
    Abstract
    The oligomerization of 1-pentyne using palladium acetyl acetonate catalyst with various solvents and ligands was investigated. An equimolar mixture of HOAc and Et N proved to be a superior solvent. The major product observed in most cases was the dimer, 6-methylene-nona-yne, although both cis and trans-dect-ene-6-yne were observed in most cases. Trimers were formed when phosphines were replaced with bldentate amines or phosphite ligands. A one to one mixture of PPh and (CH ) P gave the highest yield of oligomers with 6-methylene-nona-4-yne as the major product. No aromatics were formed with any of the reaction systems studied. The general mechanism proposed, by Meriwether and elaborated by Maitlis is in agreement with these results.
    Citation
    Hunt, Ann Louise Beal. "Palladium catalysed oligomerization of 1-alkynes." (1975) Master’s Thesis, Rice University. http://hdl.handle.net/1911/104379.
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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892