74827-07-9Relevant academic research and scientific papers
TRANSFORMATION OF cis-ENYNE-SUBSTITUTED OXIRANES TO 2-VINYLFURANS SEVEN-MEMBERED CYCLOALLENES AS INTERMEDIATES ?
Roser, Joachim,Eberbach, Wolfgang
, p. 2455 - 2458 (2007/10/02)
Upon thermal activation the 1,2-epoxy-(Z)-3-hexen-5-ynes 5a-c are transformed predominantly into the 2-vinylfurans 9a-c/10a-c.A reaction mechanism is proposed which involves the transformation of 7-membered cycloallenes (structure 3) as central intermediates.
ADDITION OF 5-MEMBERED AROMATIC HETEROCYCLIC COMPOUNDS TO ACETYLENES CATALYZED BY TETRARHODIUM DODECACARBONYL: SYNTHESES OF VINYL SUBSTITUTED AROMATIC HETEROCYCLIC COMPOUNDS
Hong, Pangbu,Cho, Bo-Re,Yamazaki, Hiroshi
, p. 507 - 510 (2007/10/02)
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 80percent 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.
