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Merck
CN

479519

Platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex solution

in xylene, Pt ~2 %

Synonym(s):

Karstedt′s catalyst, Platinum(0) 1,3-diethenyl-1,1,3,3-tetramethyldisiloxane complexes

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About This Item

Linear Formula:
O[Si(CH3)2CH=CH2]2Pt
CAS Number:
68478-92-2
Molecular Weight:
381.48
NACRES:
NA.22
PubChem Substance ID:
24871623
UNSPSC Code:
12161600
MDL number:
MFCD00151662

Key Documents

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Product Name

Platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex solution, in xylene, Pt ~2 %

InChI

1S/C8H18OSi2.Pt/c1-7-10(3,4)9-11(5,6)8-2;/h7-8H,1-2H2,3-6H3;

SMILES string

[Pt].C[Si](C)(O[Si](C)(C)C=C)C=C

InChI key

RCNRJBWHLARWRP-UHFFFAOYSA-N

vapor pressure

7 mmHg ( 21 °C)

composition

Pt, ~2%

reaction suitability

core: platinum
reagent type: catalyst

concentration

in xylene

bp

138 °C

mp

12-13 °C

density

0.855 g/mL at 25 °C

Quality Level

200

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Application

Hydrosilylation Catalysts
Platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex solution is a powerful hydrosilylation catalyst for the preparation of trans-β-silanes.

It has also been used in the reduction of carboxamides to amines.

General description

Platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex is a platinum complex, commonly known as a Karstedt′s catalyst. It is generally employed as a catalyst in hydrosilylation reactions.

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Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT RE 2 Inhalation - STOT SE 3

target_organs

Central nervous system,Liver,Kidney, Respiratory system

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

77.0 °F - closed cup

flash_point_c

25 °C - closed cup

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ9815
MKCZ0583
MKCZ0582
MKCX0444
MKCV7472

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Kenichiro Itami et al.
The Journal of organic chemistry, 67(8), 2645-2652 (2002-04-13)
Metal-catalyzed hydrosilylation of alkenes and alkynes using dimethyl(pyridyl)silane is described. The hydrosilylation of alkenes using dimethyl(2-pyridyl)silane (2-PyMe(2)SiH) proceeded well in the presence of a catalytic amount of RhCl(PPh(3))(3) with virtually complete regioselectivity. By taking advantage of the phase tag property
Practical access to amines by platinum-catalyzed reduction of carboxamides with hydrosilanes: synergy of dual Si- H groups leads to high efficiency and selectivity
Hanada S, et al.
Journal of the American Chemical Society, 131, 15032-15040 (2009)
S E Denmark et al.
Organic letters, 3(7), 1073-1076 (2001-03-30)
[reaction: see text]. The formal addition of an aryl-H or alkenyl-H bond across a terminal alkyne has been accomplished by the combination of platinum-catalyzed hydrosilylation followed by palladium-catalyzed cross-coupling. The use of the t-Bu3P-Pt(DVDS) catalyst in combination with tetramethyldisiloxane gave
Ionic liquids as solvents for rhodium and platinum catalysts used in hydrosilylation reaction
Zielinski W, et al.
Molecules (Basel), 21, 1115-1115 (2016)
Denmark, S. E.; Wang, Z.
Organic Syntheses, 81, 54-54 (2005)
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Articles

Hydrosilylation Catalyst

Trost group's protocol yields α-vinylsilanes from terminal acetylenes using [Cp*Ru(MeCN)3]PF6 catalyst and others for hydrosilylation.

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