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Condensation of the dilithio-derivative with carbonyl compounds gives ɑß-epoxycarboxylic acids (glycidic acids) which afford methyl ketones on decarboxylation, avoiding possible ester hydrolysis in the classical Darzens glycidic ester condensation (see Ethyl chloroacetate, A15554): J. Org. Chem., 47, 1205 (1982). An analogous reaction of the dianion with ɑß-unsaturated esters gives, stereoselectively, cyclopropane cis-dicarboxylic acids: Synthesis, 284 (1982):/n
Gefahrenhinweise (EU): H302-H314
Harmful if swallowed. Causes severe skin burns and eye damage.
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. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.