ACETYLENE DIETHERS DINEOPENTYLOXYETHYNE

Article abstract of DOI:10.1016/0040-4020(82)80238-X

Dineopentyloxyethyne has been synthesized from trans-2,3-dichloro-1,4-dioxane according to a general procedure already described.In contrast with alkyl neopentyloxyacetylenes, R-C<*>C-O-CH2Bu^t, which only polymerize when are strongly heated (> 150 deg C), dineopentyloxyethyne is a kinetically unstable acetylene diether that polymerizes readily at room temperature.However, the compound has been trapped with Co2(CO)8 to give either the corresponding hexacarbonyl complex, m.p. 74-75 deg C, or the cyclic trimer, m.p. 205-206 deg C, depending upon the experimental conditions.