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547824

Sigma-Aldrich

Tris[N,N-Bis(trimethylsilyl)amide]gadolinium(III)

98%

Synonym(s):

Gadolinium bis(trimethylsilyl)amide, Gadolinium tris[bis(trimethylsilyl)amide]

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About This Item

Linear Formula:
Gd(N(Si(CH3)3)2)3
CAS Number:
Molecular Weight:
638.40
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

Assay

98%

form

solid

reaction suitability

core: gadolinium
reagent type: catalyst

mp

67-90 °C (lit.)

SMILES string

C[Si](C)(C)N([Gd](N([Si](C)(C)C)[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C

InChI

1S/3C6H18NSi2.Gd/c3*1-8(2,3)7-9(4,5)6;/h3*1-6H3;/q3*-1;+3

InChI key

LFWPRLGQJJEPDP-UHFFFAOYSA-N

General description

Atomic number of base material: 64 Gadolinium

Application

In many asymmetric catalysis applications, glove box and Schlenk techniques should be employed to prevent exposure of the rare earth catalyst to air and moisture, which can be detrimental to the reaction outcome. Solutions of the catalyst should be made using anhydrous solvents and used shortly after preparation.

Pictograms

FlameCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Flam. Sol. 1 - Skin Corr. 1B - Water-react 2

Supplementary Hazards

Storage Class Code

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

WGK 3

Flash Point(F)

36.0 °F - closed cup

Flash Point(C)

2.2 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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A Sebok et al.
Journal of chromatography. A, 1211(1-2), 104-112 (2008-10-14)
This paper presents a derivatization, mass fragmentation study relating to the most common six cholic acids, such as cholic, lithocholic, chenodeoxycholic, ursodeoxycholic, 3-hydroxy,7-ketocholanic and dehydrocholic acids, identified and quantified as pollutants in the aquatic environment at the first time. Derivatizations
Jerry Isaacson et al.
Angewandte Chemie (International ed. in English), 48(10), 1845-1848 (2009-01-29)
(-)-Dysibetaine has been synthesized in 11 steps from readily available L-malic acid (see scheme). The key step is a unique Ugi 4-center-3-component cyclization reaction, where an ester group acts as the carboxylic acid component. The use of 1,1,1,3,3,3-hexamethyldisilazane as an
Natalie M Clark et al.
Chemical communications (Cambridge, England), (39)(39), 5835-5837 (2009-09-30)
'Conventional' (-)-sparteine adducts of lithium and sodium 1,1,1,3,3,3-hexamethyldisilazide (HMDS) were prepared and characterised, along with an unexpected and 'unconventional' hydroxyl-incorporated sodium sodiate, [(-)-sparteine x Na(mu-HMDS)Na x (-)-sparteine](+)[Na(4)(mu-HMDS)(4)(OH)](-)--the complex anion of which is the first inverse crown ether anion.
Werner Mormann et al.
Macromolecular bioscience, 9(4), 369-375 (2008-11-26)
Trimethylsilylation of cellulose in different 1,3-dialkylimidazolium ionic liquids (IL) with hexamethyldisilazane (HMDS) as a silylating agent was investigated. Trimethylsilyl (TMSi) cellulose with a degree of substitution (DS) greater than 1 is insoluble in the IL. The maximum DS obtained depends
Haoyu Tang et al.
Biomacromolecules, 11(6), 1585-1592 (2010-05-15)
A series of poly(gamma-chloropropyl-L-glutamate) (PCPLG) with controlled polymer molecular weight (MW = 5-28 kg x mol(-1)) and molecular weight distribution (PDI = 1.16-1.26) have been prepared from hexamethyldisilazane (HMDS)-mediated ring-opening polymerization (ROP) of gamma-chloropropyl-L-glutamic acid based N-carboxylanhydride (CP-NCA). CD, FTIR

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