Triethylamine-bonded sulfonic acid ([Et<sub>3</sub>N–SO<sub>3</sub>H]Cl): a highly efficient and homogeneous catalyst for the condensation of 2-naphthol with arylaldehydes and amides (alkyl carbamates or thioamides)
作者:Abdolkarim Zare、Shayesteh Akbarzadeh、Elmira Foroozani、Hamideh Kaveh、Ahmad Reza Moosavi-Zare、Alireza Hasaninejad、Mohammad Mokhlesi、Mohammad Hassan Beyzavi、Mohammad Ali Zolfigol
DOI:10.1080/17415993.2012.690415
日期:2012.6
Ionic liquid triethylamine-bonded sulfonic acid ([Et 3N–SO 3H]Cl, N,N-diethyl-N-sulfoethanammonium chloride) is utilized as a highly efficient, inexpensive and homogeneous catalyst to promote the following one-pot multi-component organic transformations under solvent-free conditions: (i) the condensation of 2-naphthol with arylaldehydes and amides leading to 1-amidoalkyl-2-naphthols, (ii) the reaction
离子液体三乙胺键合磺酸([Et 3N-SO 3H]Cl,N,N-二乙基-N-磺基氯化铵)被用作一种高效、廉价且均相的催化剂,以促进以下一锅多组分有机无溶剂条件下的转化:(i) 2-萘酚与芳醛和酰胺缩合生成 1-酰胺基烷基-2-萘酚,(ii) 2-萘酚与芳香醛和氨基甲酸烷基酯反应生成 1-氨基甲酸烷基-2-萘酚,以及 (iii) 2-萘酚、芳醛和硫代酰胺之间的缩合反应,生成 1-硫代酰胺基烷基-2-萘酚。高产率、短反应时间、效率、通用性、清洁过程、方法简单、成本低、易于处理、易于制备催化剂以及环境友好的条件是该协议的一些优点。