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Transition metals have been an indispensable component of modern catalysis and among these palladium is the top‐ranked choice of chemists as a catalyst. After the several important developments of palladium catalysed C−C cross‐coupling reactions, carbonylative transformations have been realised as an attractive post modification of these reactions. Carbonylative Suzuki‐Miyaura coupling reaction is among such transformations for direct incorporation of CO fragment for the preparation of biaryl or aryl/alkyl ketones via transition‐metal catalysis. Ketone functionality is basically a valuable building block having huge pharmaceutical and agrochemical applications. Moreover, carbonylative Suzuki‐Miyaura coupling is also used in the synthesis of various natural bioactive molecules through the direct joining of molecular fragments via CO bridge. In this review, the past decade developments in the carbonylative Suzuki‐Miyaura coupling reactions are documented in detail with modern approaches in transition‐metal catalysis. [ABSTRACT FROM AUTHOR]

In this paper, a simple and efficient protocol for the chemoselective sulfonation of indoles using aryl sulfonyl chlorides in the presence of CuI is reported. The reaction proceeds under mild conditions and is applicable to indoles bearing a selection of functional groups without NH protection. [ABSTRACT FROM AUTHOR]

4-(1-Imidazolium) butane sulfonate is an excellent catalyst for the synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetrasubstituted imidazoles through the condensation of 1,2-dicarbonyl compounds, aldehydes, and ammonium acetate or amine via multicomponent condensation strategy under solvent-free conditions. The key advantages of this process are high yields, reusability of catalyst, environmental friendliness, easy work-up and purification of products by nonchromatographic methods. [ABSTRACT FROM AUTHOR]

The simple cyclization reaction of 2-aminopyridines and ketones is tolerant to a wide range of functional groups. [ABSTRACT FROM AUTHOR]