255-50-5Relevant articles and documents
Synthesis and Diels-Alder reactions of enantiopure (-)-trans-benzo[d]-dithuene-S,S′-dioxide
Cecchet, Elisa,Di Furia, Fulvio,Licini, Giulia,Modena, Giorgio
, p. 369 - 372 (1996)
Enantiopure (-)-trans-benzo[d]dithiine-S,S′-dioxide 4 was obtained by enantioselective oxidation of the parent benzo[d]dithiine. The reaction of the bis-sulfoxide with a series of cyclic dienes affords the corresponding Diels-Alder cycloadducts with diastereoselectivities ranging from fair to high and good chemical yields.
Synthesis of unsaturated 1,4-heteroatom-containing benzo-fused heterocycles using a sequential isomerization-ring-closing metathesis strategy
Morgans, Garreth L.,Ngidi, E. Lindani,Madeley, Lee G.,Khanye, Setshaba D.,Michael, Joseph P.,de Koning, Charles B.,van Otterlo, Willem A.L.
experimental part, p. 10650 - 10659 (2010/01/16)
A small library of 1,4-benzodioxins and 4H-1,4-benzoxazines was synthesized from the corresponding bis-allyloxy precursors by way of an initial isomerization to the bis-vinyloxy compounds, followed by a ring-closing metathesis using the second generation Grubbs' catalyst (G2). A related strategy, starting from benzene-1,2-dithiol and 2-mercaptophenol, afforded benzodithiin and 1,4-benzoxathiin, respectively.
1,4-BENZODITHIIN 1,1,4,4,-TETRAOXIDE AS DIENOPHILE
Nakayama, Juzo,Nakamura, Yoichi,Hoshino, Masamatsu
, p. 1119 - 1122 (2007/10/02)
1,4-Benzodithiin 1,1,4,4,-tetraoxide undergoes the Diels-Alder reaction with a series of dienes under mild condition to provide the corresponding adducts in excellent yields.The adduct with anthracene is desulfonated to afford dibenzobarrelene, thus showi