ADDITION OF 5-MEMBERED AROMATIC HETEROCYCLIC COMPOUNDS TO ACETYLENES CATALYZED BY TETRARHODIUM DODECACARBONYL: SYNTHESES OF VINYL SUBSTITUTED AROMATIC HETEROCYCLIC COMPOUNDS
作者:Pangbu Hong、Bo-Re Cho、Hiroshi Yamazaki
DOI:10.1246/cl.1980.507
日期:1980.5.5
In the presence of a catalytic amount of Rh4(CO)12 furan adds to diphenylacetylene (1a) to give 1-(2-furyl)-1,2-diphenylethylene in a 80% yield. Similarly, from 2-substituted furans are obtained the adducts (3e–3h), in which the furyls attach to the olefin at the 5-position of the rings, in good yields. Thiophene and N-methylpyrrole also react with 1a to afford the corresponding ethylenes.