Ring-Closing Metathesis of Titanium–Carbene Complexes Prepared from Thioacetals Having a Carbon–Carbon Double Bond

T Fujiwara, Y Kato, T Takeda

Index: Fujiwara, Tooru; Kato, Yoshiko; Takeda, Takeshi Tetrahedron, 2000 , vol. 56, # 28 p. 4859 - 4869

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Citation Number: 33

Abstract

The ring-closing metathesis proceeded to give cycloalkenes in good yields when diphenyl thioacetals having a carbon–carbon double bond were treated with the low-valent titanium species Cp2Ti [P (OEt) 3] 2 in THF at room temperature and then at reflux. This methodology is successfully applied to the preparation of cyclic ethers and sulfides.