2-(1-alkylaminoalkyl)-3-hydroxy-1,4-naphthoquinone, process for its production and processes for producing 2-(1-alkenyl)-3-hydroxy-1,4-naphthoquinone and 2-alkyl-3-acyloxy-1,4-naphthoquinone by using it

摘要

A 2-(1-alkylaminoalkyl)-3-hydroxy-1,4-naphthoquinone of the formula: <IMAGE> wherein R1 is an alkyl group or a cycloalkyl group, and R2 is an alkyl group having at least 2 carbon atoms.