Influences of phenol, α-naphtol and β-naphtol, which are toxic chemicals, on citric acid biosynthesis and biomass in the artificial culture setting of Aspergillus niger using batch fermenter are examined in the most favorable fermentation conditions, and a model is proposed. Addition of certain concentrations of phenol, α-naphtol and β-naphtol to the culture reduces the citric acid production. ...

Three naphtol derivativesweresynthesized using several strategies; in first stage, was synthetized the compound 4(1-[(2-Amino-ethylamino)-phenyl-methyl]-naphthalen-2-ol) using the three-component system (β-naphtol, benzaldehyde and ethylenediamine).The secondstage involves the synthesis of1-{[2-Hex-1-ynyl-phenyl-amino)-ethylamino]-phenyl-methyl}-naphtalen2-ol (6) by the reaction of 4 with 1-hex...

In this study, a new naphtol derivative was synthesized. The first stage, involved preparation of 1-[(2-Amino-ethylamino)-phenylmethyl]-naphthalen-2-ol (4) using a three-component system (β-naphtol [1], benzaldehyde [2], and ethylenediamine [3]), followed by the reaction of 4 with 3,5dinitrobenzoic acid (5) to form N-(2-{[(2-Hydroxy-naphtalen-1-yl)-phenyl-methyl]-amino}-ethyl)3,5-dinitro-benzam...