27081-10-3 Usage
Description
Tropylium Tetrafluoroborate, with the chemical formula C7H7BF4 and CAS# 27081-10-3, is an off-white to beige powder. It is a versatile reagent and reactant used in various chemical reactions and applications due to its unique properties.
Uses
1. Used in Chemical Synthesis:
Tropylium Tetrafluoroborate is used as a reactant or reagent for several chemical reactions, including:
a. Retro-Buchner reactions for the synthesis of arylcyclopropanes.
b. Desymmetrization for access to homocalystegine analogs or aminocycloheptitols.
c. α-Cyanation of imines.
d. Stereoselective α-alkylation of aldehydes with stable carbocations.
e. Oxidative C-H activation of aliphatic aldehydes.
f. Electrochemical Redox transformations.
2. Used in Electrochemical Applications:
Tropylium Tetrafluoroborate is used as an electrolytic solution for electrochemical devices, providing a medium for ionic conduction and facilitating various electrochemical processes.
3. Used in Protective Coatings:
Tropylium Tetrafluoroborate is used as a component in protective coatings for selenium electrophotographic plates, enhancing their durability and performance.
Check Digit Verification of cas no
The CAS Registry Mumber 27081-10-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,0,8 and 1 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27081-10:
(7*2)+(6*7)+(5*0)+(4*8)+(3*1)+(2*1)+(1*0)=93
93 % 10 = 3
So 27081-10-3 is a valid CAS Registry Number.
InChI:InChI=1/C7H7.BF4/c1-2-4-6-7-5-3-1;2-1(3,4)5/h1-5H,6H2;/q+1;-1
27081-10-3Relevant articles and documents
Synthesis of 1,3-Dithiol-2-yl and 1,3-Benzodithiol-2-yl Azides and Their Reaction with Trityl Salt
Nakayama, Juzo,Fujiwara, Kazuo,Hoshino, Masamatsu
, p. 2024 - 2025 (1980)
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Dauben,Jr. et al.
, p. 1442,1444 (1960)
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Synthesis and Isolation of Polytrityl Cations by Utilizing Hexaphenylbenzene and Tetraphenylmethane Scaffolds
Rathore, Rajendra,Burns, Carrie L.,Guzei, Ilia A.
, p. 1524 - 1530 (2007/10/03)
The successful isolation of stable (and soluble) hexa- and tetratrityl cations based on hexaphenyl-benzene and tetraphenylmethane scaffold has been accomplished by using readily available starting materials. These robust polytrityl cations can be isolated in crystalline form and stored indefinitely at 0 °C. Their structures have been established by 1H/ 13C NMR spectroscopy and by UV-vis spectroscopy. The structures of these polytrityl cations were further confirmed by quantitative transformations to the reduced (poly)triphenylmethyl derivatives by hydride transfer from triethylsilane, cycloheptatriene, or a borane-dimethyl sulfide complex.
Cyclisation reactions of 2-substituted biphenyl-2'-yldiazonium salts leading to O-alkyldibenzofuranium and S-alkyldibenzothiophenium salts: Modified Meerwein reagents
Downie,Heaney,Kemp,King,Wosley
, p. 4005 - 4016 (2007/10/02)
The preparation of 2-amino-2'-methoxybiphenyl and 2-amino-2'-thiomethoxybiphenyl and analogues and their transformation into diazonium salts and hence into dibenzofuranium and dibenzothiophenium salts is described together with their use as alkylating agents.
