| Autor: |
Kashina MV; Institute of Chemistry, St. Petersburg University, 7/9 Universitetskaya Emb., Saint Petersburg 199034, Russia., Karcheuski AA; Institute of Chemistry, St. Petersburg University, 7/9 Universitetskaya Emb., Saint Petersburg 199034, Russia., Kinzhalov MA; Institute of Chemistry, St. Petersburg University, 7/9 Universitetskaya Emb., Saint Petersburg 199034, Russia., Luzyanin KV; Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7SD, UK., Katkova SA; Institute of Chemistry, St. Petersburg University, 7/9 Universitetskaya Emb., Saint Petersburg 199034, Russia. |
| Abstrakt: |
A series of platinum complexes featuring phosphine and isocyanide ligands [PtX 2 (PPh 3 )(CNCy)] (X = Cl, Br, and I) as well as their parent phosphine [PtX 2 (PPh 3 ) 2 ] and isocyanide [PtX 2 (CNCy) 2 ] analogues have been prepared and evaluated as catalysts for the photocatalytic hydrosilylation of alkynes. Under violet light irradiation (λ max = 400 nm), phosphine-isocyanides complexes [PtX 2 (PPh 3 )(CNCy)] gave high yields of silylated products (product yield up to 99%, TONs up to 1.98 × 10 3 ). The blue light irradiation (λ max = 450 nm) was more suitable for the parent phosphine complexes [PtX 2 (PPh 3 ) 2 ], which showed comparable efficiency (product yield up to 99%, TON up to 1.98 × 10 3 ), while isocyanide complexes [PtX 2 (CNCy) 2 ] were not active. |
