Diethoxymethane → HCID 123658901, compound

Participants

Reaction Steps

To a mechanically stirred mixture of 4,8-cyclododecadien-1-ol (5.4 g, 30 mmol; in the form of a 47% E,Z-, 48% Z,E- and 5% E,E isomer mixture), formaldehyde diethyl acetal (31.2 g, 294 mmol) and lithium bromide (0.52 g, 6 mmol) was added toluene sulphonic acid monohydrate (0.57 g, 3 mmol). The mixture was stirred at room temperature for 3 hours, then diluted with MTBE, washed with aqueous NaHCO3, water and brine. The solvent was evaporated and the product purified by liquid chromatography (silica gel 230 g; eluent=heptane/ethyl acetate 95/5).

Provenance & Evidence