Journal ArticleDOI
An efficient synthesis of (E) -(2 -arylpyrazino[1,2 -a ]pyrimidine-4-ylidene)acetonitriles and cyanomethyl appended pyrimidines
TLDR
A series of (E )-(2-arylpyrazino[1,2- a ]pyrimidine-4-ylidene) acetonitriles was synthesized in excellent yields through base catalyzed ring transformation of suitably functionalized 2 H -pyran-2-ones 3 using 2-aminopyrazine 4a and arylamidinium salts 4b, separately.About:
This article is published in Tetrahedron Letters.The article was published on 2007-01-22. It has received 15 citations till now. The article focuses on the topics: Acetonitriles.read more
Citations
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Journal ArticleDOI
Natural and synthetic 2H-pyran-2-ones and their versatility in organic synthesis☆
Atul Goel,Vishnu Ji Ram +1 more
TL;DR: An overview of the natural presence and development of the chemistry of the 2 H -pyran-2-one ring system is delineated in this article, where 363 references are provided.
Journal ArticleDOI
A new, one-pot, three-component synthesis of 4H-pyrido[1,2-a]pyrimidines, 4H-pyrimido[1,2-a]pyrimidines, and 4H-pyrazino[1,2-a]pyrimidines
TL;DR: In this article, a new one-pot and three-component synthesis of 4H-pyrido[1,2-a]pyrimidines, 4Hpyrimido[ 1, 2-a]-pyridines and 4Hpyrazino[1.2]-pyrimidine is described.
Journal ArticleDOI
2H-Pyran-2-ones and their annelated analogs as multifaceted building blocks for the fabrication of diverse heterocycles
Ramendra Pratap,Vishnu Ji Ram +1 more
TL;DR: In this article, a review of 2H-pyran-2-ones is presented, where the properties, synthesis and their synthetic applications to generate various classes of heterocycles are discussed.
Journal ArticleDOI
An efficient substituent dependent synthesis of congested pyridines and pyrimidines
TL;DR: In this article, an efficient and versatile synthesis of various congested pyridines has been delineated by base catalyzed ring transformation of suitably functionalized 2H-pyran-2-ones 1a-h, 5, 7, and 15 by formamidine acetate 2a, acetamidine hydrochloride 2b, S-methylisothiourea 9a, pyrazol-1-yl-carboxamidine 9b, and arylamidine hydro-chloride 12 separately in the presence of powdered KOH
Journal ArticleDOI
Ring transformations of 2h-pyran-2-ones and fused pyran-2-ones with nucleophilic reagents
Franc Pozgan,Marijan Kočevar +1 more
TL;DR: In this paper, a review of nitrogen and carbon-nucleophile-induced ring transformations of selected pyran-2-one derivatives is presented, which provide convenient routes for the synthesis of different heterocycles and carbocycles as well as β-heteroaryl-α,β-didehydroamino acid derivatives.
References
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Book
Comprehensive Heterocyclic Chemistry II
TL;DR: In this article, the CHEC III is organized in 15 volumes and closely follows the organization used in the previous edition: Volumes 1 and 2: Cover respectively three and four-membered heterocycles, together with all fused systems containing a three- or four-measured heterocyclic ring.
MonographDOI
Supramolecular Chemistry: Concepts and Perspectives
TL;DR: From molecular to supramolescular chemistry: concepts and language of supramolecular chemistry, molecular recognition, information, complementarity molecular receptors - design principles and more.
Journal ArticleDOI
Making photoactive molecular-scale wires
Anthony Harriman,Raymond Ziessel +1 more
TL;DR: In this paper, a synthetic strategy that provides access to oligopyridine-based ditopic ligands bridged by an alkyne spacer comprising one to four ethynyl groups is described.
Journal ArticleDOI
Building photoactive molecular-scale wires
Anthony Harriman,Raymond Ziessel +1 more
TL;DR: In this paper, the effect of electron delocalization within the triplet manifold from the more general decoupling of metal-centered and charge-transfer excited states that occurs upon lowering the triplet energy is discussed.