175353-31-8

Basic information

• Product Name: Ru(-CH=CH-SiEt₃)Cl(CO)(PPh₃)2
• CAS NO: 175353-31-8
• Molecular Weight: 830.424
• Mol File: 175353-31-8.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Ru(-CH=CH-SiEt₃)Cl(CO)(PPh₃)2(CAS DataBase Reference)
• NIST Chemistry Reference: Ru(-CH=CH-SiEt₃)Cl(CO)(PPh₃)2(175353-31-8)
• EPA Substance Registry System: Ru(-CH=CH-SiEt₃)Cl(CO)(PPh₃)2(175353-31-8)

Safety Data

• Hazardous Substances Data: 175353-31-8(Hazardous Substances Data)

Upstream product

• 157072-60-1 (carbonyl)(chloro)(hydrido)tris(triphenylphosphine)ruthenium(II) 
• 1777-03-3 2-triethylsilylacetylene 
• 617-86-7 triethylsilane 
• 74-86-2 acetylene 

Relevant articles and documents

New catalytic route to alkynylgermanes

Vinyl-trisubstituted germanes react selectively with terminal alkynes in the presence of compounds containing Ru-H and Ru-Ge bonds with formation of functionalized alkynylgermanes. The reaction opens the first transition metal catalytic route for the preparation of this class of organogermanes, which are useful reagents for organic synthesis. The mechanism elucidated by NMR spectroscopic study of stoichiometric reactions shows that this process is a new catalytic activation of an sp-hybridized C-H bond involving the previously discovered activation of the =C-Ge bond.

Insertion of ethyne into the Ru-Si bonds of coordinatively unsaturated ruthenium silyl complexes. X-ray crystal structures of Ru(CH=CHSiMe2OEt)Cl(CO)2(PPh3)2 and [Ru(CH=CHSiMe2OH)(CN-p-tolyl)(CO)(PPh3) 2]ClO4

The five-coordinate silyl complexes Ru(SiR3)Cl(CO)(PPh3)2(R3 = Me3 (1a), Et3 (1b), Ph3 (1c), Me2Cl (1f)) are conveniently prepared through reaction of Ru(Ph)Cl(CO)(PPh3)2 with the appropriate silane, HSiR3. Reaction of the Si-Cl bond in 1f with ethanol or hydroxide gives the corresponding ethoxysilyl or hydroxysilyl products Ru(SiMe2X)Cl(CO)(PPh3)2 (X = OEt (1d), OH (1e)). Ethyne readily inserts into the Ru-Si bond of 1a-d, and the corresponding five-coordinate, silylalkenyl complexes Ru(CH=CHSiR3)Cl(CO)(PPh3)2 (R3 = Me3 (2a), Et3 (2b), Ph3 (2c), Me2OEt (2d)) can be isolated in good yield. The complexes Ru(CH=CHSiR3)Cl(CO)2(PPh3)2 (SiR3 = SiMe3 (3a), SiEt3 (3b), SiMe2OEt (3d)) result from carbonylation of 2a,b,d. An X-ray crystal structure determination of Ru(CH=CHSiMe2-OEt)Cl(CO)2(PPh3)2 (3d) has been obtained. Reaction of Ru(CH=CHSiMe3)Cl(CO)(PPh3)2 (2a) with CN-p-tolyl or sodium acetate gives Ru(CH=CHSiMe3)Cl(CO)(CN-p-tolyl)(PPh3)2 (4a) or Ru(CH=CHSiMe3)(η2-O2CCH 3)(CO)(PPh3)2 (5a), respectively. Insertion of ethyne into the Ru-Si bond of 1e results in the formation of the metallacyclic ring-containing complex, Ru(CH=CHSiMe2OH)Cl(CO)(PPh3)2 (6e), in which the hydroxysilyl oxygen atom is coordinated to ruthenium. Reaction of 6e with AgClO4 gives [Ru(CH=CHSiMe2OH)(CO)-(NCMe)(PPh3)2]ClO 4 (7e) and substitution of the labile acetonitrile in this compound with CO or CN-p-tolyl generates [Ru(CH=CHSiMe2OH)(CO)2(PPh3) 2]ClO4 (8e) or [Ru(CH=CH-SiMe2OH)(CO)(CN-p-tolyl)(PPh3) 2]ClO4 (9e), respectively. The crystal structure of 9e has been determined. Deprotonation of 8e or 9e with KOH gives the neutral complexes Ru-(CH=CHSiMe2O)(CO)2(PPh3)2 (10e) or Ru(CH=CHSiMe2O)(CO)(CN-p-tolyl)(PPh3)2 (11e), respectively. Complex 1b has been shown to catalyze the hydrosilylation of both ethyne and phenylethyne by HSiEt3.