Synthesis of 1,3-diaryl-5,6-dihydropyrrolo2,1-a isoquinolines via copper-promoted reaction of tetrahydroisoquinolines with α,β-unsaturated ketones under solvent-free conditions

Key Points

• This synthesis produces 1,3-diaryl-5,6-dihydropyrrolo[2,1-a]isoquinolines efficiently without solvents, enhancing green chemistry approaches.
• The key reaction utilizes copper to promote the combination of tetrahydroisoquinolines with α,β-unsaturated ketones effectively.
• Method analysis shows the effectiveness of a copper-promoted reaction at room temperature, achieving high yields without the need for solvents.
• This method highlights the potential for more sustainable practices in chemical synthesis, reducing environmental impact.