The reaction of 2-(4-chlorobutyl)-1, 3-dioxolanes (1a–c) or 2-(4-chlorobutyl)-2-ethyl-1, 3- dithiane (1d) with an excess of lithium powder and a catalytic amount of naphthalene (8 mol%) in THF at-78° C leads to a solution of the corresponding masked lithium δ-enolates 2, which react with different electrophiles (water, deuterium oxide, carbonyl compounds, carboxylic acid derivatives, dibenzyl disulfide or benzylideneaniline) to yield the expected ...
[Arbuzov, P. V.; Voronkov, M. G.; Mirskov, R. G.; Stankevich, V. K.; Kukharev, B. F.; et al. Russian Chemical Bulletin, 1995 , vol. 44, # 9 p. 1755 - 1757 Izvestiya Akademi Nauk, Seriya Khimicheskaya, 1995 , # 9 p. 1824 - 1826]