Novel primary intermediate in oxidative hair dyeing

Details Novel primary intermediate in oxidative hair dyeing Novel primary intermediate in oxidative hair dyeing

C - Chemistry, Metallurgy

07

C

C07C 215/80 (2006.01) C07C 215/68 (2006.01)

Patent

CA 2287821

5-Nitroisatin is reacted with sodium hydroxide to produce an .alpha.-keto acid sodium salt that is reduced with borane-tetrahydrofuran complex and then hydrogenated to produce 1-(2,5-diaminophenyl)ethylene glycol, a novel compound useful as a primary intermediate in the production of oxidative hair dyes.

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