Acetylene and ethylene – universal C2 molecular units in cycloaddition reactions

Acetylene and ethylene are the smallest molecules that contain an unsaturated carbon-carbon bond and can be efficiently utilized in a large variety of cycloaddition reactions. In the present review, we summarize the application of these C2 molecular units in cycloaddition chemistry and highlight their amazing synthetic opportunities.

Reference: Synthesis, 2021, ASAP

DOI: 10.1055/a-1654-2318