540-37-4 Usage
Chemical Properties
beige to greyish-brown crystalline powder. soluble in alcohol, ether and chloroform, slightly soluble in water.
Uses
Different sources of media describe the Uses of 540-37-4 differently. You can refer to the following data:
1. suzuki reaction
2. 4-Iodoaniline is a iodine substituted aniline that is widely used as chemical intermediates in the manufacturing of pesticides, dyes and drugs. 4-Iodoaniline was shown to be a more potent nephrotoxica
nt in vitro than other anilines.
3. 4-dehydroanilinium ion, a stable distonic isomer of ionized aniline, by collision-activated dissociation of protonated 4-iodoaniline. Palladium-catalyzed carbonylation of 4-iodoaniline gave the corresponding four- armed star polybenzamides. 4-Iodoaniline is a iodine substituted aniline that is widely used as chemical intermediates in the manufacturing of dyes and drugs. 4-Iodoaniline was used to prepare phenyl functionalized graphene oxide (I-Ph-GO).
Preparation
4-Iodoaniline is obtained by the reaction of aniline and iodine in the presence of sodium bicarbonate. Add aniline and sodium bicarbonate to water and slowly add crushed iodine in stages with vigorous stirring. If the reaction solution is yellow, add a little sodium bisulfite to make it discolor, then filter and get the crude product. Then the product is recrystallized by ethanol to obtain 4-Iodoaniline.
General Description
4-Iodoaniline is the most potent methaemoglobin former.
Purification Methods
Crystallise it from pet ether (b 60-80o) by refluxing, then cool it in an ice-salt bath freezing mixture. Dry it in air. Alternatively, crystallise it from EtOH and dry it in vacuo for 6hours at 40o [Edidin et al. J Am Chem Soc 109 3945 1987]. The N-acetyl derivative has m 184o (from MeOH). [Beilstein 12 IV 1544.]
Check Digit Verification of cas no
The CAS Registry Mumber 540-37-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,4 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 540-37:
(5*5)+(4*4)+(3*0)+(2*3)+(1*7)=54
54 % 10 = 4
So 540-37-4 is a valid CAS Registry Number.
InChI:InChI=1/C6H6IN/c7-5-1-3-6(8)4-2-5/h1-4H,8H2
540-37-4Relevant articles and documents
A facile reduction procedure for nitroarenes with Cp2TiCl2/Sm system
Huang, You,Liao, Puhong,Zhang, Yongmin,Wang, Yulu
, p. 1059 - 1063 (1997)
Nitroarenes can be reduced to the corresponding primary amines in good yields with Cp2TiCl2/Sm system under mild and neutral conditions.
Palladium Immobilized on a Polyimide Covalent Organic Framework: An Efficient and Recyclable Heterogeneous Catalyst for the Suzuki–Miyaura Coupling Reaction and Nitroarene Reduction in Water
Dong, Zhenhua,Pan, Hongguo,Gao, Pengwei,Xiao, Yongmei,Fan, Lulu,Chen, Jing,Wang, Wentao
, p. 299 - 306 (2021/05/10)
An efficient and recyclable Pd nano-catalyst was developed via immobilization of Pd nanoparticles on polyimide linked covalent organic frameworks (PCOFs) that was facilely prepared through condensation of melamine and 3,3′,4,4′-biphenyltetracarboxylic dianhydride. The Pd nanoparticles (Pd NPs) catalyst was thoroughly characterized by FT-IR, XRD, SEM, TEM. Furthermore, the catalytic activity of Pd NPs catalyst was evaluated by Suzuki–Miyaura coupling reaction and nitroarene reduction in water, respectively. The excellent yields of corresponding products revealing revealed that the Pd NPs catalyst could be applied as an efficient and reusable heterogeneous catalyst for above two reactions. Graphical Abstract: [Figure not available: see fulltext.]
Electrochemical C-H Halogenations of Enaminones and Electron-Rich Arenes with Sodium Halide (NaX) as Halogen Source for the Synthesis of 3-Halochromones and Haloarenes
Jin, Jun,Lin, Yan,Liu, Yunyun,Wan, Jie-Ping,Wang, Chaoli
, p. 12378 - 12385 (2021/09/07)
Without employing an external oxidant, the simple synthesis of 3-halochromones and various halogenated electron-rich arenes has been realized with electrode oxidation by employing the simplest sodium halide (NaX, X = Cl, Br, I) as halogen source. This electrochemical method is advantageous for the simple and mild room temperature operation, environmental friendliness as well as broad substrate scope in both C-H bond donor and halogen source components.