de Meijere, ArminArminde MeijereStecker, B.B.SteckerKourdioukov, A.A.KourdioukovWilliams, C. M.C. M.Williams2018-11-072018-11-072000https://resolver.sub.uni-goettingen.de/purl?gro-2/545723-Phenylallyl ether 17, 2,5-dihydrofuran (1) and N-acceptor-substituted 2,5-dihydropyrrols 4, 6, 8, 10, 12 upon treatment with cyclohexylmagnesium bromide in the presence of Ti(Oi-Pr), were found to undergo a diastereoselective dihydrodimerization affording 1,5-dienes, d,l-2,3-diethenylbutane-1,4-diol (51% yield) and d,l-2,3-diethenyl-1,4-bis(sulfonylamino)butanes (43-52%), respectively. In the presence of titanium bis(4R,5R)-taddolate, the dihydrodimerization of 1 proceeded with 35-38% chemical yield and up to 94% ee.journal_article000087941200007