Reaction catalyzed by 4-hydroxyphenylpyruvate 3-dimethylallyltransferase (2.5.1.111)

		+			=			+
	dimethylallyl diphosphate	+		1,6-dihydroxynaphthalene	=		diphosphate	+		1-O-dimethylallyl-1,6-dihydroxynaphthalene