Process for the preparation of methyl polyethers and methyl...

Details Process for the preparation of methyl polyethers and methyl... Process for the preparation of methyl polyethers and methyl...

C - Chemistry, Metallurgy

07

C

260/647.5

C07C 43/11 (2006.01) C07C 41/18 (2006.01) C07C 43/10 (2006.01)

Patent

CA 1155462

A B S T R A C T PROCESS FOR THE PREPARATION OF METHYL POLYETHERS AND METHYL POLYETHERS PREPARED BY THIS PROCESS Preparation of a methyl polyether of the formula: RO(CH2CHR'O)nCH3 (I) wherein R represents an alkyl group having from 1 to 22 carbon atoms, R' represents a hydrogen atom or a methyl group, and n is an integer from 1 to 12, with the proviso that when n is greater than 1, R' may represent mixtures of hydrogen atoms and methyl groups, characterized in that an oxa-alkoxyalkanol of the formula: RO(CH2CHR'O)nCH2CH2OH (II) wherein R, R' and n have the same meaning as in formula I, is contacted at elevated temperature with a catalyst comprising heterogeneous metallic nickel,and the methyl polyethers thus prepared.

359555

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