Affiliation:
1. Department of Chemistry, Indian Institute of Technology Kanpur, 208016, Kanpur, Uttar Pradesh, India
Abstract
Partially reduced heterocyclic compounds such as 1,4,5,6-tetrahydropyrimidines
are often found to possess interesting pharmacological properties. Yet, the synthetic
routes towards such systems are less developed than their fully aromatic counterparts.
In this review article, the biological significance of 1,4,5,6-tetrahydropyrimidines is
discussed and the existing literature reports describing various preparative routes to access
1,4,5,6-tetrahydropyrimidine derivatives have been categorically described. The focus has
been expanded to present an overview of the chronological development of the traditional
synthetic routes as well as the contemporary approaches to 1,4,5,6-tetrahydropyrimidines
that generally include: (i) condensation reactions of diamines with various
appropriate counterparts such as carbonyl compounds, imino ethers, amidines or nitriles,
condensation of amidines with 1,3-dibromopropane and α,β-unstaurated carbonyl compounds, condensation of
amino alcohols; (ii) selective reduction of pyrimidines; (iii) ring expansion chemistry of cyclopropanes, aziridines,
and azetidines; and (iv) miscellaneous examples such as various multicomponent reactions.
Funder
Indian Institute of Chemical Biology-CSIR
Publisher
Bentham Science Publishers Ltd.
Cited by
3 articles.
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