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Synthetic scheme for generating 1,2,3-triazoles 95. Reagents and Conditions: (i) 92a (Ph3P)2PdCl2, CuI, TEA, TIPS-acetylene, DMF, 80 °C, 72 h, 30%, 92b (Ph3P)2PdCl2, CuI, TEA, ethynyl-TMS, 80 °C, 20 h, 48%; (ii) DPPA, DBU, toluene, RT, 16 h, 94a 55%, 94b 83%; (iii) CuI, sodium ascorbate, TEA, DCM, RT, 24 h, 95a 65%, 95b 30%. Reproduced in part from [117] with permission of the Royal Society of Chemistry.
