Abstract
(figure presented) Methylalumoxane (MAO) was found to be an active catalytic precursor for the chemo- and regioselective dimerization of a wide range of aryl-and alkyl-substituted terminal alkynes yielding the corresponding geminal dimers A. For an olefin-functionalized terminal alkyne (RC≡CH, R = MeC=CH2), the geminal dimer undergoes an intermolecular [4 + 2] cycloaddition forming compound B.
Original language | English |
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Pages (from-to) | 737-740 |
Number of pages | 4 |
Journal | Organic Letters |
Volume | 2 |
Issue number | 6 |
DOIs | |
State | Published - 23 Mar 2000 |
Externally published | Yes |