We report an efficient and entirely green procedure for preparation of 1-(benzothiazolylamino)methyl-2-naphthol derivatives involving multi-component, one-pot condensation reaction of 2-naphthol, 2-aminobenzothiazole, and aromatic aldehydes in the presence of maltose under solvent-free conditions. This method has several advantages, including mild conditions, high yields, clean reaction profile, simple operation, and environmentally benign and simple work-up procedures.
AbstractOne-pot, efficient three-component condensation of aromatic aldehydes, 2-naphthol and 2-aminobenzothiazole in the presence of oxalic acid as an organocatalyst and effective catalyst for the synthesis of 1-(benzothiazolylamino) methyl-2-naphthol derivatives under thermal and solvent-free conditions is described. The present approach of this methodology offers several advantages such as high
Sodium Dodecyl Sulfate-assisted Synthesis of 1-(Benzothiazolylamino)methyl-2-naphthols in Water
作者:Anil Kumar、M. Sudershan Rao、V. Kameswara Rao
DOI:10.1071/ch10209
日期:——
An efficient synthesis of 1‐(benzothiazolylamino)methyl‐2‐naphthols has been developed in water by one‐pot condensation of 2‐naphthol, aldehydes and 2‐aminobenzothiazole catalyzed by sodium dodecyl sulfate. Advantages of the methodology include a very short reaction time, excellent yields and catalytic use of the sodium dodecyl sulfate.
NaHSO<sub>4</sub>.H<sub>2</sub>O Catalyzed Multicomponent Synthesis of 1-(Benzothiazolylamino) Methyl-2-Naphthols Under Solvent-Free Conditions
作者:Asghar Hosseinian、Hamid Reza Shaterian
DOI:10.1080/10426507.2012.664221
日期:2012.9.1
A one-pot, efficient three-component condensation of aldehydes, 2-naphthol, and 2-aminobenzothiazole in the presence of sodium hydrogen sulfate as an effective catalyst for the synthesis of 1-(benzothiazolylamino)methyl-2-naphthol derivatives under thermal and solvent-free conditions is described. These products involve two biologically active parts, Betti's base and benzothiazole. The present methodology offers several advantages, such as good yields, short reaction times, and easy work-up.
Shaterian; Mohammadnia, South African Journal of Chemistry, 2013, vol. 66, p. 60 - 63