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Reagent for the protection (see Appendix 4) of 1,2- and 1,3-diols as di-tert-butylsilylene derivatives, formed by reaction in the presence of triethylamine and 1-hydroxybenzotriazole: Tetrahedron Lett., 22, 4999 (1981). The group shows enhanced stability to hydrolysis relative to dimethylsilylene but can be readily cleaved with fluoride, e.g. HF in acetonitrile or pyridine-HF: J. Org. Chem., 48, 3252 (1983); J. Am. Chem. Soc., 112, 7001 (1990)./n
Gefahrenhinweise (EU): H227-H314-H318
Combustible liquid. Causes severe skin burns and eye damage. Causes serious eye damage.
Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.