149021-03-4 Usage
Physical state
Colorless liquid
Odor
Strong, sweet
Usage
Building block in the synthesis of various organic compounds
Applications
a. Pharmaceutical production
b. Agrochemicals
c. Materials science
Functional group
Trimethylsilyl group
Stability
Enhanced by the trimethylsilyl group
Reactivity
Versatile precursor in organic synthesis
Reagent in organic chemistry
Used in palladium-catalyzed cross-couplings and silicon-directed functionalization reactions
Environmental and health hazards
Potential hazards, requires careful handling and usage
Check Digit Verification of cas no
The CAS Registry Mumber 149021-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,0,2 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 149021-03:
(8*1)+(7*4)+(6*9)+(5*0)+(4*2)+(3*1)+(2*0)+(1*3)=104
104 % 10 = 4
So 149021-03-4 is a valid CAS Registry Number.
149021-03-4Relevant articles and documents
Remote trimethylsilyl groups interfering with the ortho deprotonation of fluoroarenes and chloroarenes
Heiss, Christophe,Marzi, Elena,Mongin, Florence,Schlosser, Manfred
, p. 669 - 675 (2007/10/03)
(2-Fluorophenyl)trimethylsilane (2-F) and (2-chlorophenyl)-trimethylsilane (2-Cl) react with sec-butyllithium or lithium 2,2,6,6-tetramethylpiperidide under permutational hydrogen/metal interconversion (metalation) more slowly than, respectively, the corr