Example 027

Thermal [2π + 2π] cycloaddition of a ketene to cyclopentadiene

Thermal [2 + 2] cycloaddition of a ketene to cyclopentadiene
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M. Rey, S. Roberts, A. Dieffenbacher and A. S. Dreiding, Helv. Chim. Acta, 1970, 53, 417–432
DOI: 10.1002/hlca.19700530223