Current Organic Chemistry - Volume 18, Issue 6, 2014

The cyclopentane carbocyclic ring system, while ubiquitous in nature, is not usually considered a privileged core structure for the development of a drug candidate due, in part, to a perceived synthetic intractability of stereochemically complex target molecules. In this review, we demonstrate that the cyclopentane motif has been utilized as an effective core scaffold for several highly successful medicinal chemistry programs a Read More

Biginelli reaction is the most classical and frequently employed method for facile and diverse synthesis of 3,4- dihydropyrimidinones and thiones (DHPMs)-a class of privileged heterocyclic scaffolds possessing meritorious biological and pharmacological functions. Owing to the presence of a chiral centre in DHPMs and the discovered distinction in biological activity of DHPMs isomers, accessing chiral DHPMs of optical purity co Read More

N-Heterocyclic carbenes (NHCs) as versatile nucleophilic organocatalysts have been extensively studied and also widely applied in organic reactions. The types of organic reactions catalyzed by N-heterocyclic carbenes are broad including benzoin condensation, Stetter reaction, a3-to-d3 umpolung, ring-opening reaction, transesterification, and ring expansion polymerization. This review reports recent developments in the Read More

High efficiency in the organic synthesis makes the multicomponent reaction (MCR) an attractive research field, in which some three-component reactions such as the Strecker (found in 1850), Hantzsch (1882), Biginelli (1891), Mannich (1912), and Passerini (1921) were widely spread, followed by the findings of some four-component reactions such as the Bucherer Bergs and Asinger reactions found in 1929 and 1956, respective Read More

Organic fluorophores have at times been criticized for their wide band emission. In the rapidly developing field of white lightemitting devices (WOLEDs) however, such features have become exalted in the search for dyes that display panchromatic emission. To achieve white light emission, mixing of emitters that emit red, green and blue (RGB) or complementary color mixing of bluish/green with orange/red colors represent Read More