A reagent, 2-chloroethoxy(trimethyl)silane (CETS), has been devised which ensures the preservation of TMS ether groups during Wittig methylenation in protic media and which makes this formerly capricious reaction with 16-keto gibberellins a reliable and straightforward procedure. © 1981.
Mander, L. N., & Turner, J. V. (1981). Chloroethoxy(trimethyl)silane: A hard-base trap which preserves tms ether groups and improves the wittig methylenation of gibberellins. Tetrahedron Letters, 22(41), 4149–4152. https://doi.org/10.1016/S0040-4039(01)82090-6