1999 carbohydrates

carbohydratesU 0500

44 - 233A Convenient Synthesis of Glycals Employing in situ GeneratedCp2TiCl. — Acetylated glycosyl bromides or the related glycosyl pyridylsulfone are efficiently converted to the corresponding glycals by the low-valenttitanium reagent Cp2TiCl, generated in situ from Cp2TiCl2 and Mn. Thismethod does not require the separate preparation of Cp2TiCl using glove-boxtechniques. — (HANSEN, THOMAS; KRINTEL, SUSSIE L.; DAASBJERG,KIM; SKRYDSTRUP, TROELS; Tetrahedron Lett. 40 (1999) 33, 6087-6090;Dep. Chem., Univ. Aarhus, DK-8000 Aarhus, Den.; EN)

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