31458-17-0 Usage
Description
4,4'-Dibromo-2,2'-dimethylbiphenyl is a chemical compound characterized by the molecular formula C14H12Br2. It is a biphenyl derivative featuring two bromine atoms at the 4 positions on each benzene ring and two methyl groups at the 2 positions. 4,4'-Dibromo-2,2'-dimethylbiphenyl is known for its applications in various chemical and material science fields.
Uses
Used in Organic Synthesis:
4,4'-Dibromo-2,2'-dimethylbiphenyl is utilized as a key intermediate in organic synthesis processes, serving as a building block for the creation of more complex organic molecules.
Used in Pharmaceutical Production:
In the pharmaceutical industry, 4,4'-Dibromo-2,2'-dimethylbiphenyl is used as a precursor for the synthesis of various medicinal compounds, contributing to the development of new drugs.
Used in Agrochemicals:
4,4'-Dibromo-2,2'-dimethylbiphenyl is employed as a starting material in the production of agrochemicals, such as pesticides and herbicides, to enhance crop protection and yield.
Used in Liquid Crystal Material Production:
4,4'-Dibromo-2,2'-dimethylbiphenyl is used as a precursor in the synthesis of liquid crystal materials, which are vital for the manufacturing of liquid crystal displays (LCDs) and other optoelectronic devices.
Used in Organic Light-Emitting Diode (OLED) Development:
4,4'-Dibromo-2,2'-dimethylbiphenyl is studied for its potential role in the development of OLEDs, which are used in the creation of energy-efficient and high-quality display and lighting technologies.
Used as a Flame Retardant in Polymers:
In the polymer industry, 4,4'-Dibromo-2,2'-dimethylbiphenyl is considered for its flame retardant properties, improving the fire safety of various polymer-based materials.
Check Digit Verification of cas no
The CAS Registry Mumber 31458-17-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,4,5 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 31458-17:
(7*3)+(6*1)+(5*4)+(4*5)+(3*8)+(2*1)+(1*7)=100
100 % 10 = 0
So 31458-17-0 is a valid CAS Registry Number.
31458-17-0Relevant articles and documents
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Oki,M. et al.
, p. 262 - 265 (1971)
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Electron transfer in bis-porphyrin donor-acceptor compounds with polyphenylene spacers shows a weak distance dependence
Helms, Anna,Heiler, David,McLendon, George
, p. 6227 - 6238 (2007/10/02)
A series of phenylene-bridged bis-porphyrin adducts have been synthesized, containing one, two, or three phenyl bridges. Complete synthetic details are provided. For studies of photochemical electron transfer, mixed metals wre incorporated, with zinc in one porphyrin macrocycle and FeIII (bis-imidazole) in the other macrocycle. When photoexcited, an electron is transferred from Zn to FeIII. The rate of this process drops only slowly with distance: kα exp(βr), with β = 0.4 A?-1. This dependence can be predicted by a simple theory which assumes that the drop does not reflect increased distance, but rather reflects the break in conjugation which occurs at each phenyl juncture due to the biphenyl twist angle of ca. 50°. Inefficient overlap in this angle results in a rate drop of ca. 6-fold per phenyl ring, in good agreement with the observed results.
