Abstract
Treatment of either [RuHCl(CO)(PPh3)3] or [RuH(CO)(NCMe)2(PPh3)2]BF4 with K[H2B-(pz)2] (pz = pyrazol-1-yl) provides [RuH(CO)(PPh3)2{H2B(pz)2}] (1), which is also the product of the reaction of [Ru(SnPh3)Cl(CO)(PPh3)2] or [Ru(SiMe3)Cl(CO)(PPh3)2] with K[H2B(pz)2] in the presence of ethanol. The complexes [RuHCl(CS)(BTD)(PPh3)2] (BTD = 2,1,3-benzothiadiazole) and [RuHCl(CS)(BSD)(PPh3)2] (BSD = 2,1,3-benzoselenadiazole) are obtained from the reactions of [RuHCl(CS)(PPh3)3] and BTD or BSD. [RuH(CS)(PPh3)2{H2B-(pz)2}] (2) is obtained in a manner similar to that for 1 from either [RuHCl(CS)(PPh3)3] or [RuHCl(CS)(BTD)(PPh3)2] and K[H2B(pz)2]. The σ-aryl complexes [RuPh(CA)(PPh3)2{H2B-(pz)2}] (A = O (3), S (4)) result from the reactions of [RuPhCl(CA)(PPh3)2] with K[H2B(pz)2]. The σ-vinyl complexes [Ru(CR1=CHR2)Cl(CO)(BTD)(PPh3)2] (R1 = R2 = H (5), C6H4Me-4 (6); R1 = H, R2 = C6H4Me-4 (7), CPh2OH) react with K[H2B(pz)2] to provide [Ru(CR1=CHR2)-(CO)(PPh3)2(H 2B(pz)2}] (R1 = R2 = C6H4Me-4 (8); R1 = H, R2 = C6H4Me-4 (9), H (10), CPh2OH (11)). Treating [Ru(CPh=CHPh)Cl(CS)(PPh3)2] with K[H2B(pz)2] provides [Ru(CPh=CHPh)-(CS)(PPh3)2{H2B(pz)2}] (13), which reacts rapidly with carbon monoxide to give the thioacyl complex [Ru(η2-SCCPh=CHPh)(CO)(PPh3){H2B(pz) 2}] (14) by loss of phosphine. The alkynyl derivatives [Ru(C≡CR)(CO)(PPh3)2{H2B(pz) 2}] (R = C6H4Me-4 (15), CPh2OH (16)) were prepared from the reaction of [Ru(CH=CHC6H4Me-4)(CO)(PPh3)2{H 2B(pz)2}] (9) with excess HC≡CR or alternatively from the reaction of 1 with [Hg(C≡CC6H4Me-4)2]. The crystal structure of 10 is also reported.
| Original language | English |
|---|---|
| Pages (from-to) | 4249-4258 |
| Number of pages | 10 |
| Journal | Organometallics |
| Volume | 17 |
| Issue number | 19 |
| Early online date | 26 Aug 1998 |
| DOIs | |
| Publication status | Published - Sept 1998 |
| Externally published | Yes |