The dilithiated derivative can undergo the Peterson olefination reaction (see Appendix 4), to give substituted acrylic acids, with alkyl halides to give alkyl silylacetic acids and with oxiranes to give -lactones: J. Chem. Soc., Chem. Commun., 537 (1975):/n
Dehydration with DCC and Et3N gives the ketene which is remarkably stable, showing little tendency to dimerize: Synthesis, 568 (1989)./n
Mentions de danger (UE): H303-H315-H319-H335
May be harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Mentions de prudence: P261-P280a-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.