1372764-64-1Relevant articles and documents
Synthesis of 1-carbamatoalkyl-2-naphthols in Tween 20 aqueous micelles
Yang, Jin-Ming,Jiang, Chen-Njing,Dong, Hao,Fang, Dong
, p. 279 - 281 (2013)
A facile and efficient procedure for the preparation of 1-carbamatoalkyl-2-naphthols by a one-pot multi-component reaction of 2-naphthol, aldehydes and carbamates is described. The procedure is carried out under neutral conditions at 75-80 °C in an aqueous medium catalysed by the non-ionic surfactant Tween A loading of 20. 5 wt% of the catalyst was optimal. After the reaction, the catalyst could be simply recovered and reused directly without any further treatment. Product yields were slightly decreased after six cycles. The effect of some common solvents other than water on the reaction was explored besides the water. The generality of this multi-component condensation reaction was evaluated with various aldehydes and carbamates under the optimised conditions.
Solvent-free one-pot synthesis of 1-carbamatoalkyl-2-naphthols by a tin tetrachloride catalyzed multicomponent reaction
Wang, Min,Wang, Qing L.,Zhao, Shuang,Wan, Xin
, p. 975 - 980 (2013/07/26)
An efficient one-pot synthesis of 1-carbamatoalkyl-2-naphthols using tin tetrachloride as a catalyst for the three-component condensation reaction of 2-naphthol, aldehydes, and carbamates under thermal, solvent-free conditions is described. This new approach has advantages such as mild conditions, short reaction time, high yield, simple work-up, and an inexpensive catalyst. Graphical Abstract: [Figure not available: see fulltext.]
