Caesium carbonate as a highly efficient catalyst for the synthesis of macrocyclicdiamides
Publish place: Iranian Chemical Communication، Vol: 2، Issue: 3
Publish Year: 1393
Type: Journal paper
Language: English
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Document National Code:
JR_ICC-2-3_005
Index date: 9 July 2015
Caesium carbonate as a highly efficient catalyst for the synthesis of macrocyclicdiamides abstract
In this research work, we report the synthesis of macrocyclicdiamides from the reaction of diesters and aliphatic diamines in the presence of caesium carbonate. It has been demonstrated that among the carbonate of alkali metals (Li2CO3, Na2CO3, K2CO3 and CS2CO3), CS2CO3 appears to be the best catalyst for macrocyclization. Diesters with different substitution patterns on the aromaticring reacted smoothly with diamines under optimal conditions, affording the corresponding macrocycles in high yields. Introducing a rigid group (e.g., sulfone) on the substrate led to somewhat decreased yield. Various substrates proved to be suitable for this macrocyclization reaction, especially, the flexible ones.
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Caesium carbonate as a highly efficient catalyst for the synthesis of macrocyclicdiamides authors
Esmael Rostami
Department of Chemistry, Payame Noor University, P.O. BOX ۱۹۳۹۵-۴۶۹۷ Tehran, Iran
Maryam Bagherzadeh
Department of Chemistry, Payame Noor University, P.O. BOX ۱۹۳۹۵-۴۶۹۷ Tehran, Iran
Akram Khodadadi
Department of Chemistry, Payame Noor University, P.O. BOX ۱۹۳۹۵-۴۶۹۷ Tehran, Iran
Ay Soda Ghobadpoor
Department of Chemistry, Payame Noor University, P.O. BOX ۱۹۳۹۵-۴۶۹۷ Tehran, Iran