Zhang You-lan
2005
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Quality indicators
Journal
Dyestuffs and coloration
Abstract
The synthesis and application of 1,3-dihydroxynaphthalene were reviewed with 26 references. The synthesis routes included alkaline fusion of either sodium 3-hydroxy-1 -naphthalene sulfonate, sodium 4-hydroxy-2-naphthalene sulfonate or disodium 1,3- naphthalene disulfonate; efficient dihydroxylation of naphthalene by photocatalytic oxidation in aqueous nano-TiO2 suspension; cyclization from γ -phenylacetoacetate or phenylacetyl chloride in H2SO4 medium, The photocatalytic hydroxylation method would be likely recommended because of its simper and eco-friendly process.