| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1328536 | Journal of Organometallic Chemistry | 2006 | 6 Pages |
(π-Allyl)palladium triflate coordinated with 1,2-bis(4-methoxyphenyl)-3,4-bis(2,4,6-tri-t-butylphenylphosphinidene)cyclobutene (DPCB–OMe), [Pd(η3-C3H5)(DPCB–OMe)]OTf, efficiently catalyzes cyclodehydration of cis–2-butene-1,4-diol with active methylene compounds such as acetylacetone and ethyl acetoacetate in toluene in the presence of pyridine. The reactions can be performed in air, giving 2-vinyl-2,3-dihydrofurans in good to high yields.
Graphical abstractComplex 1 coordinated with 1,2-bis(4-methoxyphenyl)-3,4-bis(2,4,6-tri-t-butylphenylphosphinidene)cyclobutene (DPCB–OMe) efficiently catalyzes cyclodehydration of cis–2-butene-1,4-diol with active methylene compounds to give 2-vinyl-2,3-dihydrofurans in good to high yields.Figure optionsDownload full-size imageDownload as PowerPoint slide
