781-16-8 Usage
Type of compound
Biphenyl derivative
Explanation
A biphenyl is an organic compound consisting of two phenyl rings connected by a carbon-carbon bond. This compound is a derivative of biphenyl, meaning it has a similar structure but with additional functional groups or modifications.
Explanation
The compound is a solid at room temperature, with a colorless and crystalline appearance.
Explanation
The compound does not dissolve well in water, indicating that it has limited solubility.
Explanation
The compound contains four fluorine atoms, making it a perfluorinated compound. This property can affect its chemical and physical characteristics.
Explanation
The compound serves as a starting material for the synthesis of various advanced materials and chemicals, including those used in the production of liquid crystals, polymers, and high-performance coatings. It is also used in the manufacturing of electronic components and as a heat transfer fluid in industrial applications.
Explanation
The compound can pose health risks if it is inhaled or ingested, and it may cause irritation to the skin and eyes upon contact. Proper handling and safety precautions are necessary to minimize these risks.
Physical state
Colorless, crystalline solid
Solubility
Slightly soluble in water
Fluorine content
Four fluorine atoms
Uses
Precursor for advanced materials, chemicals, liquid crystals, polymers, high-performance coatings, electronic components, and heat transfer fluid
Stability
Stable and non-flammable
Toxicity
Can be toxic when inhaled or ingested, may cause skin and eye irritation upon contact
Check Digit Verification of cas no
The CAS Registry Mumber 781-16-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,8 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 781-16:
(5*7)+(4*8)+(3*1)+(2*1)+(1*6)=78
78 % 10 = 8
So 781-16-8 is a valid CAS Registry Number.
781-16-8Relevant articles and documents
Gold Catalyzed Decarboxylative Cross-Coupling of Iodoarenes
Daley, Ryan A.,Morrenzin, Aaron S.,Neufeldt, Sharon R.,Topczewski, Joseph J.
supporting information, p. 13210 - 13218 (2020/09/01)
This report details a decarboxylative cross-coupling of (hetero)aryl carboxylates with iodoarenes in the presence of a gold catalyst (>25 examples, up to 96% yield). This reaction is site specific, which overcomes prior limitations associated with gold catalyzed oxidative coupling reactions. The reactivity of the (hetero)aryl carboxylate correlates qualitatively to the field effect parameter (Fortho). Reactions with isolated gold complexes and DFT calculations support a mechanism proceeding through oxidative addition at a gold(I) cation with decarboxylation being viable at either a gold(I) or a silver(I) species.
Synthesis, NMR spectroscopic characterisation and reactions of 2,6-difluorophenylxenon fluoride, 2,6-F2C6H3XeF
Bock, Harald,Scherer, Harald,Tyrra, Wieland,Naumann, Dieter
, p. 1440 - 1445 (2008/09/19)
[2,6-F2C6H3Xe][BF4] is quantitatively transferred into 2,6-F2C6H3XeF in reactions with [NMe4]F. The latter has been isolated as a colourless solid which is stable in dichloromethane solution at room temperature for approximately 1 h. 2,6-F2C6H3XeF readily reacts with Me3SiX (X = Cl, Br, CN, NCO, OCOCF3, OSO2CF3, C6F5, 2,6-F2C6H3) to give compounds of general compositions 2,6-F2C6H3XeX which were identified by multinuclear NMR experiments. Evidence was found for C6H5Xe(2,6-F2C6H3) as a product of the reaction with C6H5SiF3.
