Methylating or ethylating agent and process for 1,4-adding a...

Details Methylating or ethylating agent and process for 1,4-adding a... Methylating or ethylating agent and process for 1,4-adding a...

C - Chemistry, Metallurgy

07

J

C07J 1/00 (2006.01) C07C 45/69 (2006.01) C07J 7/00 (2006.01) C09K 3/00 (2006.01)

Patent

CA 2120004

A new methylating or ethylating agent, containing trimethyl aluminium or dimethyl zinc or triethyl aluminium as methyl ethyl source, further contains catalytic amounts of acne or several cuprous and/or cupric compounds. Also disclosed is a process for 1,4-adding a methyl or ethyl group to an .alpha.,.beta.-unsaturated or to an .alpha.,.beta.-bisynsaturated ketone or to an .alpha.,.beta.-unsaturated aldehyde by means of the disclosed agent. As only catalytic amounts of copper wind a chlorinated hydrocarbon-free reacting agent are used, this new methylating/ethylating agent and process are characterized by being environmentally safe and are useful for example for preparing starting materials for the synthesis of biologically active compounds.

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