O. Arjona et al., The Diels-Alder reaction of phenylsulfonylacetylene and furan derivatives.Normal vs. tandem 'pincer' reactions, HETEROCYCLE, 50(2), 1999, pp. 653-656
The Diels-Alder reaction between some furan derivatives and phenylsulfonyla
cetylene has been studied along the normal and 'pincer' pathways. The ring
opening of some of the resulting products has been also examined.