发明名称 |
Process for the preparation of bromoarylacetylene and aryldiacetylene precursors |
摘要 |
Bromoarylacetylenes such as m-bromophenylacetylene and certain precursors to such bromoarylacetylene are prepared by reacting an aryldibromide with a substituted terminal acetylene compound containing at least three carbon atoms and a hydroxy group on the carbon atom adjacent to the acetylene group in the presence of a dialkyl or trialkyl amine solvent and a catalyst system consisting of a palladium complex containing two halogen moieties and two tri-substituted phosphine moieties. Additional triphenylphosphine can be added. A cuprous iodide promoter is also employed in the reaction sequence. The bromoarylacetylenes can be reacted with a substituted terminal acetylene compound as defined using the same catalyst system as defined to produce the corresponding aryldihydroxy substituted acetylenes. Certain bromophenylhydroxy substituted acetylenes are claimed as new compositions.
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申请公布号 |
US4223172(A) |
申请公布日期 |
1980.09.16 |
申请号 |
US19780967244 |
申请日期 |
1978.12.07 |
申请人 |
GULF RESEARCH & DEVELOPMENT COMPANY |
发明人 |
SABOURIN, EDWARD T.;SELWITZ, CHARLES M. |
分类号 |
C07C29/32;C07C29/62;(IPC1-7):C07C29/00;C07C33/10;C07C33/04 |
主分类号 |
C07C29/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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