182170-27-0Relevant academic research and scientific papers
Regioselective addition of chalcogenol to an η3-propargyl/allenyl complex via formation of the carbon-chalcogen bond leading to new chalcogenoxyallyl species
Tsai, Fu-Yu,Hsu, Ray-Hsi,Huang, Tsang-Miao,Chen, Jwu-Ting,Lee, Gene-Hsiang,Wang, Yu
, p. 85 - 96 (1996)
Regioselective addition of chalcogenol to an η3-propargyl complex [Pt(PPh3)2(η3-C3H3)](BF4) (2) via the formation of the C-O, C-S, or C-Se bond generates new cationic chalcogenoxyallyl species {Pt(PPh3)2[η3-CH2C(ER)CH2]}(BF4) (E = O, R = Me (4a), Et (4b), iPr (4c), tBu (4d), Ph (4e); E = S, R = Et (5b), iPr (5c), tBu (5d), Ph (5e); E = Se, R = Ph (6e)) respectively in good yields. Thiol and selenol react with complex 2 much faster than alcohol; and 2 reacts with p-(HO)C6H4(SH) to exclusively yield the thioxyallyl product {Pt(PPh3)2[η3-CH2C(SC6H4OH)CH2]}(BF4) (5f). Among the alcohols and phenol, the reactivity follows the order MeOH > EtOH > iPrOH > tBuOH > PhOH. A mechanism comprising a preceding coordination step is postulated. The X-ray structures of 4b, 4e, 5b, 5e and 6e are provided.
