5728-70-1 Usage
Uses
Used in Pharmaceutical Industry:
4'-Ethyl-[1,1'-biphenyl]-4-amine is used as a starting material for the synthesis of pharmaceuticals, contributing to the development of new drugs and therapeutic agents. Its unique chemical structure allows for the creation of a variety of compounds with potential medicinal properties.
Used in Dye Industry:
In the dye industry, 4'-Ethyl-[1,1'-biphenyl]-4-amine serves as a precursor for the production of various dyes. Its ability to form different chemical structures makes it a valuable component in the creation of a wide range of colorants used in textiles, plastics, and other applications.
Used in Organic Chemistry Research:
4'-Ethyl-[1,1'-biphenyl]-4-amine is utilized in organic chemistry research for the exploration of new synthetic pathways and the development of novel chemical compounds. Its reactivity and structural features make it an interesting subject for scientific investigation and potential applications in various fields.
Check Digit Verification of cas no
The CAS Registry Mumber 5728-70-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,2 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 5728-70:
(6*5)+(5*7)+(4*2)+(3*8)+(2*7)+(1*0)=111
111 % 10 = 1
So 5728-70-1 is a valid CAS Registry Number.
5728-70-1Relevant academic research and scientific papers
N- and C-attacks on aromatics of phenylnitrenium ion generated from N-phenylhydroxylamine in the presence of trifluoroacetic acid containing polyphosphoric acid or trifluoroacetic anhydride
Takeuchi, Hiroshi,Taniguchi, Tomohito,Ueda, Takahiro
, p. 295 - 300 (2007/10/03)
A phenylnitrenium ion formed from N-phenylhydroxylamine in the presence of trifluoroacetic acid (TFA) containing polyphosphoric acid (PPA) interacts with the counterion -O2CCF3 and the unshared electron-pair of H2O, showing Hammett's ρ values -5.2 and -4.0 for N- and C-attacks on aromatics PhX (X = H, Me, Et, Ph and Cl), respectively. The ratio N-/C-attack for this nitrenium ion is lower than for the nitrenium ion interacting with only the counterion; the latter nitrenium ion is generated by the use of trifluoroacetic anhydride (TFAA) instead of PPA or by reaction of phenyl azide with aromatics in TFA. The ratio for the former nitrenium ion is affected by the aromatic substituent X:X = Me > X = Et > X = Ph > X = H > X = OMe at 20 and 50°C. The order for X = Cl is between those of X = H and X = Ph at 20°C, but highest at 50°C. The ratio is increased by higher reaction temperature and by decreased concentration of TFA. The results are demonstrated from the mechanistic viewpoint for the nitrenium ions.
