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N,N'-Methanediylidenebis(2,6-diisopropylaniline)
[CAS# 2162-74-5]

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Identification
Classification Chemical reagent >> Organic reagent >> Imide
Name N,N'-Methanediylidenebis(2,6-diisopropylaniline)
Synonyms Bis(2,6-diisopropylphenyl)carbodiimide
Molecular Structure CAS # 2162-74-5, N,N'-Methanediylidenebis(2,6-diisopropylaniline), Bis(2,6-diisopropylphenyl)carbodiimide
Molecular Formula C25H34N2
Molecular Weight 362.56
CAS Registry Number 2162-74-5
EC Number 218-487-5
SMILES CC(C)C1=C(C(=CC=C1)C(C)C)N=C=NC2=C(C=CC=C2C(C)C)C(C)C
Properties
Density 1.0±0.1 g/cm3, Calc.*
Index of Refraction 1.529, Calc.*
Boiling Point 477.7±45.0 ºC (760 mmHg), Calc.*
Flash Point 235.6±29.6 ºC, Calc.*
* Calculated using Advanced Chemistry Development (ACD/Labs) Software.
Safety Data
Hazard Symbols symbol symbol   GHS07;GHS08 Danger    Details
Hazard Statements H302-H360-H372    Details
Precautionary Statements P203-P260-P264-P270-P280-P301+P317-P318-P319-P330-P405-P501    Details
Hazard Classification
up    Details
HazardClassCategory CodeHazard Statement
Acute toxicityAcute Tox.4H302
Specific target organ toxicity - repeated exposureSTOT RE1H372
Reproductive toxicityRepr.1BH360
Specific target organ toxicity - repeated exposureSTOT RE2H373
Chronic hazardous to the aquatic environmentAquatic Chronic4H413
Reproductive toxicityRepr.1BH360F
Eye irritationEye Irrit.2H319
Skin irritationSkin Irrit.2H315
Specific target organ toxicity - single exposureSTOT SE3H335
Acute toxicityAcute Tox.3H301
Acute toxicityAcute Tox.2H310
Acute toxicityAcute Tox.4H332
Transport Information UN 2811
SDS Available
up Discovory and Applicatios
N,N'-Methanediylidenebis(2,6-diisopropylaniline), commonly referred to as a Schiff base compound, is an organonitrogen compound notable for its versatile applications in coordination chemistry, polymer science, and industrial catalysis. This compound features two imine (-C=N-) linkages connecting a methylene group to two 2,6-diisopropylaniline units. Its molecular design combines steric hindrance and electron-donating properties, making it highly effective in stabilizing reactive intermediates and forming metal complexes.

The discovery of Schiff bases dates back to the 19th century when Hugo Schiff identified the condensation reaction between primary amines and carbonyl compounds. N,N'-Methanediylidenebis(2,6-diisopropylaniline) emerged as part of efforts to create ligands with tailored electronic and steric properties. By incorporating 2,6-diisopropylaniline, researchers enhanced the compound's thermal stability, solubility, and selectivity for complexation with transition metals.

This compound finds primary application as a ligand in the synthesis of metal complexes. Its bulky isopropyl groups help create spatially demanding environments around the metal center, enabling precise control over catalytic activity. For example, it is employed in olefin polymerization, where its complexes with titanium or zirconium act as highly efficient catalysts for producing polyethylene and polypropylene with tailored molecular weights and structures.

In the realm of materials science, N,N'-Methanediylidenebis(2,6-diisopropylaniline) contributes to the development of advanced polymers. Its incorporation as a cross-linking agent or curing agent in epoxy resins enhances mechanical properties, thermal stability, and resistance to chemical degradation. These properties are crucial in applications ranging from aerospace components to high-performance adhesives and coatings.

The compound also plays a role in dye and pigment synthesis, where its imine functionality participates in reactions to create chromophores with specific optical properties. Furthermore, its derivatives are studied for their potential in medical applications, such as drug delivery systems and as antimicrobial agents, leveraging its ability to bind selectively to biological targets.

Environmental considerations are increasingly shaping its use, especially concerning sustainable catalysis and green chemistry. Research is directed toward designing recyclable catalysts based on its complexes and optimizing reaction conditions to minimize waste and energy consumption.

N,N'-Methanediylidenebis(2,6-diisopropylaniline) illustrates the interplay between structural design and functionality, showcasing how tailored organic compounds can address diverse industrial and scientific challenges. Its applications span traditional and emerging fields, highlighting its adaptability and enduring relevance.
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