Catalytic transfer of carbon atoms enables spirofusion of C–C σ-bonds
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H Fujimoto, M Mizutani, K Imachi, T Nishioka, R Ikeda…
Nature, 2026
nature.com
Spirocyclic frameworks, polycyclic structures in which two rings share a single carbon atom, constitute key structural motifs across diverse areas, including optoelectronic and hole-transporting materials1–3, ligand design for coordination complexes4–6, and numerous natural products7. In a spiro skeleton, the two molecular units adopt an orthogonal arrangement, generating a rigid three-dimensional (3D) architecture. Introducing a single carbon atom to join two components to form the spiro centre therefore represents a direct …
