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1997 thiophene derivatives thiophene derivatives R 0090 20 - 111 A Novel Route to Disubstituted (7)Thiaheterohelicene via Biaryl- and Carbonyl-Coupling Reactions. — The key steps in the new non- photochemical synthesis of the title compound (XI) are the palladium-catalyzed cross-coupling reaction between (VI) and (VIII) and the following intramolecular McMurry coupling reaction of the dialdehyde (X). — (TANAKA, K.; SUZUKI, H.; OSUGA, H.; Tetrahedron Lett. 38 (1997) 3, 457-460; Dep. Chem., Grad. Sch. Sci., Kyoto Univ., Kyoto 606-01, Japan; EN) 1

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Page 1: ChemInform Abstract: A Novel Route to Disubstituted (7)Thiaheterohelicene via Biaryl- and Carbonyl-Coupling Reactions

1997 thiophene derivatives

thiophene derivativesR 0090

20 - 111A Novel Route to Disubstituted (7)Thiaheterohelicene via Biaryl-and Carbonyl-Coupling Reactions. — The key steps in the new non-photochemical synthesis of the title compound (XI) are the palladium-catalyzedcross-coupling reaction between (VI) and (VIII) and the following intramolecularMcMurry coupling reaction of the dialdehyde (X). — (TANAKA, K.; SUZUKI,H.; OSUGA, H.; Tetrahedron Lett. 38 (1997) 3, 457-460; Dep. Chem., Grad.Sch. Sci., Kyoto Univ., Kyoto 606-01, Japan; EN)

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