Ultrasound mediated synthesis of aldimines from non-enolizable aldehydes at room temperature

被引:0
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作者
Paul, Dipankar [1 ]
Kalita, Gitumoni [1 ]
Bora, Hridoy Jyoti [1 ]
Samai, Suman [2 ]
Chatterjee, Paresh Nath [1 ]
机构
[1] Natl Inst Technol Meghalaya, Dept Chem, Bijni Complex, Shillong 793003, Meghalaya, India
[2] Prabhat Kumar Coll, Dept Chem, Contai 721404, Purba Medinipur, India
关键词
Aldehyde; sulfonamide; N-sulfonyl aldimine; ultrasound; Lewis acid; SOLVENT-FREE SYNTHESIS; N-SULFONYL ALDIMINES; CONVENIENT PROCEDURE; EFFICIENT; TOSYLIMINES; IMINES; ACID;
D O I
暂无
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A user-friendly, energy efficient method of synthesizing N-sulfonyl aldimines at room temperature (25-28 degrees C) from readily available and inexpensive reagents has been developed. The method employs ultrasonication from common laboratory ultrasonic cleaner to mediate the reaction. FeCl3 as catalyst and molecular sieves as water scavenger have produced excellent yields of aldimines with short reaction time. The reaction set-up does not require inert atmosphere or anhydrous solvent thereby saving resources and time. The easily scalable method works well for the condensation of aromatic non-enolizable aldehydes and sulfonamides.
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页码:1593 / 1600
页数:8
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