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4-(Trimethylsilyl)-1H-pyrazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

34690-52-3

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34690-52-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34690-52-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,6,9 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 34690-52:
(7*3)+(6*4)+(5*6)+(4*9)+(3*0)+(2*5)+(1*2)=123
123 % 10 = 3
So 34690-52-3 is a valid CAS Registry Number.

34690-52-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name trimethyl(1H-pyrazol-4-yl)silane

1.2 Other means of identification

Product number -
Other names 4-trimethylsilanyl-1H-pyrazole

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:34690-52-3 SDS

34690-52-3Relevant academic research and scientific papers

Functionalized pyrazoles as agents in C-C cross-coupling reactions

Pejic, Marijana,Popp, Sebastian,Bolte, Michael,Wagner, Matthias,Lerner, Hans-Wolfram

, p. 83 - 97 (2014/06/09)

The 1-tetrahydropyranyl-(THP-)protected pyrazoles 4-R-pz(THP) (R=pinacolatoboryl=Bpin (3a(THP)), Me3Si (4a(THP)), Me3Sn (5a(THP)), and 4-R-3,5-Ph2pz (R=Bpin (3b(THP)), Me3Si (4b(THP)), Me3Sn (5b(THP))

Synthesis and Reactions of 3,4-Bis(trimethylsilyl)-1-pyrazolines

Birkofer, Leonhard,Kuehn, Thomas

, p. 2293 - 2299 (2007/10/02)

1,3-Dipolar cycloaddition of diazomethane to the trans-1,2-bis(trimethylsilyl)ethenes 1 a-c affords the trans-3,4-bis(trimethylsilyl)-1-pyrazolines 2 a-c.Thermolysis of 2 a-c yields stereospecifically the trans-1,3-bis(trimethylsilyl)propenes 7 b, c and d.The pyrazoline 2 c is dehalogenated with Zn to give 3(5),4-bis(trimethylsilyl)pyrazole (8).Reaction of 2 a with tetrachloro-o-benzoquinone and of 2 b and c with methanolic NaOH leads to dehydrosilylation and elimination of halogenotrimethylsilane, respectively, with formation of the pyrazoles 9 - 11. 10 and 11 can be desilylated by treatment with acid to yield 12 and 13, resp.

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