Amine-Mediated Sequential One-Pot Synthesis of Highly Substituted Thiophenes from β-Keto Esters, Aryl Isothiocyanates and 4-Chloroacetoacetate

Thiophene Syntheses by Ring Forming Multicomponent Reactions

Thiophenes occur as important building blocks in natural products, pharmaceutical active compounds, and in materials for electronic and opto-electronic devices. Therefore, there is a considerable demand for efficient synthetic strategies for producing these compounds. This review focuses on ring-forming multicomponent reactions for synthesizing thiophenes and their derivatives.