Rhodium-catalysed chemo- and regio-selective [3 + 2+2] cycloadditions of bis(methylenecyclopropanes) and alkynes: Synthesis of spirocyclic 5–7 condensed cycloheptenes Bilash Kuila Priyanka Sharma Dinesh Mahajan Prabhpreet Singh Gaurav Bhargava 10.6084/m9.figshare.11826819.v1 https://tandf.figshare.com/articles/journal_contribution/Rhodium-catalysed_chemo-_and_regio-selective_3_2_2_cycloadditions_of_bis_methylenecyclopropanes_and_alkynes_Synthesis_of_spirocyclic_5_7_condensed_cycloheptenes/11826819 <p>Rhodium-catalyzed intermolecular [3 + 2+2] cycloaddition reactions of bis(methylenecyclopropanes) with different alkynes are described. The rhodium-catalyzed [3 + 2+2] cycloadditions resulted in the formation of functionalized 5–7–3 spirocyclic carbocycles in moderate yields with excellent regio- and chemo-selectivity.</p> 2020-02-08 10:39:12 [3 + 2+2] Cycloadditions [Rh(COD)Cl]2 bis(methylenecyclopropanes) multicomponent reaction spirocyclic cycloheptenes