Electron-donating groups (e.g., methoxy, methyl) and halogen atoms ... Recently, Thomas reported a heterobimetallic Zr/Co-complex which was able to promote the dimerization of terminal alkynes. The ...

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To overcome numerous health disorders, heterocyclic structures of synthetic or natural origin are utilized, and notably, the emergence of various side effects of existing drugs used for treatment or ...

Various 3,4-dihydropyrimidinones can be prepared via Biginelli reaction in aqueous media by using quaternary ammonium salts of different alkyl groups (C4 and C8) and anions (Cl- and Br-) as ... upon a ...

Lipases stand out among the enzymes used to produce APIs, since they can be used without the need of cofactor addition, besides acting on a wide range of substrates. Both factors, high abundance in ...