194924-65-7

Basic information

• Product Name: [Ru(CCC(CCH)Ph2)(η(5)-C9H7)(PPh3)2]
• CAS NO: 194924-65-7
• Molecular Weight: 956.081
• Mol File: 194924-65-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [Ru(CCC(CCH)Ph2)(η(5)-C9H7)(PPh3)2](CAS DataBase Reference)
• NIST Chemistry Reference: [Ru(CCC(CCH)Ph2)(η(5)-C9H7)(PPh3)2](194924-65-7)
• EPA Substance Registry System: [Ru(CCC(CCH)Ph2)(η(5)-C9H7)(PPh3)2](194924-65-7)

Safety Data

• Hazardous Substances Data: 194924-65-7(Hazardous Substances Data)

Upstream product

• 1066-26-8 sodium acetylide 

Downstream Products

• 194924-75-9 [Ru(=C=C(H)C(CCH)Ph2)(η(5)-C9H7)(PPh3)2]BF4 
• 200864-19-3 [Ru(CCCPh2(μ(2)-η(2)-CCH)Co2(CO)6)(η(5)-C9H7)(PPh3)2] 

Relevant articles and documents

Regioselective nucleophilic additions on indenyl-ruthenium(II)-allenylidene complexes. X-ray crystal structure of the alkynyl complex [Ru{C≡CC(C≡CH)Ph2}(η5-C9H 7)(PPh3)2]

The diphenylallenylidene complexes [Ru(=C=C=CPh2)(η5-C9H7)L 2][PF6] (L = PPh3; L2 = l,2-bis(diphenylphosphino)ethane (dppe), bis(diphenylphosphino)methane (dppm)) (la-c) react with NaOMe to yield the methoxyalkynyl derivatives [Ru{C≡CC(OMe)Ph2}(η5-C9H 7)-L2] (3a-c). Protonation of these species gives back the starting allenylidene derivatives. Regioselective additions on the Cγ are also observed when la,b are treated with LiR (R = Me, nBu), giving the alkynyl complexes [Ru{C≡CC(R)Ph2}(η5-C9H 7)L2] (4a,b, 5a,b). Vinylidene derivatives [Ru{=C=C(H)C(R)Ph2}(η5-C9H 7)(PPh3)2][BF4] (6a, 7a) can be prepared by protonation of complexes 4a and 5a with HBF4. The diphenylallenylidene compound 1c reacts with LitBu to yield the metallacycle complex [Ru{(k3C,P,P)-C=C=CPh2(Ph2PCHPPh 2)}-(η5-C9H7)] (8c). The alkynyl complexes [Ru{C≡CC(C=CR)Ph2}(η5-C9H 7)(PPh3)2] (R = Ph, nPr, H) (9a-11a) have been obtained by reaction of 1a with lithium or sodium acetylides. Protonation of these derivatives yields the vinylidene complexes [Ru{=C=C(H)C(C=CR)-Ph2}(η5-C9H 7)(PPh3)2][BF4](12a-14a). The crystal structure of [Ru{C≡CC(C≡CH)Ph2}(η5-C 9H7)(PPh3)2] (11a) was determined by X-ray diffraction methods. In the structure the alkynyl chain is nearly linear (Ru-C(l)-C(2) = 175.0(2)°) with Ru-C(1) and C(1)-C(2) distances of 1.993(2) and 1.209(3) A?, respectively. The monosubstituted allenylidene complex [Ru{=C=C=C(H)Ph}η-C9H7)(PPh3) 2][PF6] (2a) reacts with PMe3, PMe2Ph, PMePh2, and PPh3 to yield the cationic alkynyl-phosphonio derivatives [Ru{C≡CC(PR3)(H)Ph}(η5-C9H 7)-(PPh3)2][PF6] (17a-20a) in a regioselective way. Similarly, allenylidene complexes la-c add PMe3 to give the corresponding alkynyl-phosphonio derivatives 15a-c. [Ru{C≡CC-(PMe3)Ph2}(η5-C9H 7)(dppm)][PF6] (15c) undergoes an isomerization process to yield the thermodynamically more stable allenyl-phosphonio complex [Ru{C(PMe3)=C=CPh2}(η5-C9H 7)(dppm)][PF6] (21c). [Ru{C(PMe2Ph)=C=CPh2} (η5-C9H7)(dppm)][PF6] (22c) can be obtained directly by addition of PMe2Ph to the Cα atom of 1c. The behavior of the diphenylallenylidene complexes 1a-c toward sodium 2-methylthiophenolate is also discussed.