cheminform abstract: first highly stereoselective synthesis of fungicide systhane

2002 triazole derivatives triazole derivatives R 0280 22 - 132 First Highly Stereoselective Synthesis of Fungicide Systhane. — The ﬁrst highly stereoselective synthesis of (R)-systhane (V) is described, involving the highly diastereoselective hydrocyanation of an optically active arylvinyl sulfoxide (II) with Et 2 AlCN as key step. The presented method pro- vides the title fungicide in 92% e.e. in only 7 steps starting from commercially available hexyne (I). — (GARCIA RUANO, JOSE L.; CIFUENTES GARCIA, MARTA; MARTIN CASTRO, ANA M.; RODRIGUEZ RAMOS, JESUS H.; Org. Lett. 4 (2002) 1, 55-57; Dep. Quim. Org., Univ. Auton., Cantoblanco, E-28049 Madrid, Spain; EN) 1

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Page 1: ChemInform Abstract: First Highly Stereoselective Synthesis of Fungicide Systhane

2002 triazole derivatives

triazole derivativesR 0280

22 - 132First Highly Stereoselective Synthesis of Fungicide Systhane. —The first highly stereoselective synthesis of (R)-systhane (V) is described,involving the highly diastereoselective hydrocyanation of an optically activearylvinyl sulfoxide (II) with Et2AlCN as key step. The presented method pro-vides the title fungicide in 92% e.e. in only 7 steps starting from commerciallyavailable hexyne (I). — (GARCIA RUANO, JOSE L.; CIFUENTES GARCIA,MARTA; MARTIN CASTRO, ANA M.; RODRIGUEZ RAMOS, JESUS H.;Org. Lett. 4 (2002) 1, 55-57; Dep. Quim. Org., Univ. Auton., Cantoblanco,E-28049 Madrid, Spain; EN)

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