Category: 2909-77-5

Bowley, C. C. published the artcileImproved reflective displays based on polymer-dispersed liquid crystals, Recommanded Product: 2,6-Diisopropyl-N,N-dimethylaniline, the publication is Journal of Optical Technology (Translation of Opticheskii Zhurnal) (2000), 67(8), 717-722, database is CAplus.

Layered dispersions of liquid crystals and polymers form a new class of materials for reflective displays, known as holog. polymer-dispersed liquid crystals (H-PDLC). Alternating layers of liquid crystal and polymer having dimensions of about 150 nm possess a variable reflectance, providing a wide reflection spectrum in the absence of a field. When an elec. field is applied, this coefficient takes an intermediate value between the refractive index of the liquid crystal and that of the polymer, smoothing out the difference between them. This article is devoted to research and development of these materials, which are promising for use in reflective displays due to their brightness, saturation, and low control voltage.

Journal of Optical Technology (Translation of Opticheskii Zhurnal) published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C14H23N, Recommanded Product: 2,6-Diisopropyl-N,N-dimethylaniline.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Abraham, Raymond J. published the artcileThe use of MM/QM calculations of ¹³C and ¹⁵N chemical shifts in the conformational analysis of alkyl substituted anilines, Product Details of C14H23N, the publication is Magnetic Resonance in Chemistry (2020), 58(6), 520-531, database is CAplus and MEDLINE.

The calculation of the ¹³C and ¹⁵N NMR chem. shifts by a combined mol. mechanics (Pcmodel 9.1/MMFF94) and ab initio GIAO B3LYP/DFT, 6-31 + G(d) procedure is used to investigate the conformations of a variety of alkyl substituted anilines. The ¹³C shifts are obtained from the GIAO isotropic shielding (Ciso) with sep. references for sp³ and sp² carbons (¦Äc = ¦Äref – Ciso). The ¹⁵N shifts are obtained similarly from the GIAO isotropic shielding (Niso) with reference to the ¹⁵N chem. shift of aniline. Comparison of the observed and calculated shifts provides information on the mol. conformations. Aniline and the 2,6-dialkylanilines exist with a rapidly inverting sym. pyramidal nitrogen atom. The 2-alkylanilines have similar conformations with the NH₂ group tilted away from the 2-alkyl substituent. The N,N-dialkylanilines show more varied conformations. N,N-dimethylaniline has a similar structure to aniline, but N-Et, N-methylaniline, N,N-diethylaniline, and N,N-diisopropylaniline are conformationally mobile with two rapidly interconverting conformers. In contrast, the anilines substituted at C₂ and the nitrogen atom exist as one conformer where the steric interaction between the C₂ substituent and the N substituent determines the conformation. In 2-methyl-N-methylaniline, the nitrogen atom is pyramidal as usual with the N-Me opposite to the 2-Me, but in 2-methyl-N,N-dimethyl aniline, the NMe₂ group is now almost orthogonal to the Ph plane. This is also the case with 2-methyl-N,N-diethylaniline and 2,6-diisopropyl-N,N-dimethylaniline. The comparison of the observed and calculated ¹⁵N chem. shifts confirms the above findings, in particular the pyramidal conformation of aniline and the above observations with respect to the conformations of the N,N-dialkylanilines.

Magnetic Resonance in Chemistry published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C14H23N, Product Details of C14H23N.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Schilling, M. L. published the artcileAcrylate Oligomer-Based Photopolymers for Optical Storage Applications, SDS of cas: 2909-77-5, the publication is Chemistry of Materials (1999), 11(2), 247-254, database is CAplus.

Photopolymers are attractive candidates for high-d. holog. data storage because of their high sensitivity and refractive index contrast. The authors incorporated several high-index organic monomers into high optical quality acrylate oligomer-based formulations. Using reactivity ratio, reaction kinetics, and component refractive indexes as guidelines, a 6-fold increase in ¦¤n has been achieved compared to an initial all-acrylate formulation. Samples prepared from these formulations have been used to write and read >200 high-quality holograms in a given volume of material. This is the first time a photopolymeric medium has successfully been used to multiplex this number of holograms. Using these resins, a protocol for the evaluation of photopolymers as holog. media has been developed.

Chemistry of Materials published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C14H23N, SDS of cas: 2909-77-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Mahanthappa, Mahesh K. published the artcileSynthesis, Structure, and Ethylene/¦Á-Olefin Polymerization Behavior of (Cyclopentadienyl)(nitroxide)titanium Complexes, Product Details of C14H23N, the publication is Organometallics (2004), 23(4), 836-845, database is CAplus.

Mono-Cp titanium coordination compounds bearing monoanionic ligands derived from stable nitroxyl radicals have been synthesized by two methods: (i) trapping of CpTi(III) species with the stable nitroxyl radical TEMPO (2,2,6,6-tetramethylpiperidine-N-oxyl) to provide Cp’TiCl₂(TEMPO) (Cp’ = Cp (1) and Cp^* (2)) and (ii) salt metathesis of Ti(IV) halides with a nitroxide anion generated by the in situ methylation of tert-butyl-¦Á-phenylnitrone. Alkylation of these complexes with MeLi or MeMgBr furnishes Cp^*TiMe₂(TEMPO) (3) and Cp’TiMe₂(ON(^tBu)(CHMePh)) (Cp’ = Cp (4) and Cp^* (5)). The mol. structure of 2 has been determined by x-ray crystallog. to reveal a monoanionic ¦Ç¹-TEMPO ligated to titanium. Complexes 3 and 4 activated with ^iprAFPB (2,6,-diisopropyl-N,N-dimethylanilinium tetrakis(pentafluorophenyl)borate) efficiently copolymerize ethylene and 1-hexene to provide copolymers having higher 1-hexene contents and higher productivities than the related Cp^*Ti(CH₂Ph)₃ under identical conditions. Comparison of structural and electronic features as well as the ethylene/1-hexene copolymerization behavior of 3 and 4 with the constrained geometry catalyst [MeSi₂(¦Ç⁵-Me₄Cp)(¦Ç¹-N-tBu)]TiMe₂ provides insights into factors governing high comonomer incorporation by mono-Cp titanium complexes.

Organometallics published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C14H23N, Product Details of C14H23N.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Li, Gang published the artcileDBU-Catalyzed Selective N-Methylation and N-Formylation of Amines with CO₂ and Polymethylhydrosiloxane, Product Details of C14H23N, the publication is Advanced Synthesis & Catalysis (2018), 360(12), 2364-2369, database is CAplus.

We describe herein an efficient organocatalytic system for the selective N-methylation and N-formylation of amines with carbon dioxide (CO₂) as a sustainable C1 feedstock and polymethylhydrosiloxane (PMHS) as a cost-effectvie reducing reagent. High-yielding N-methylation products are obtained with low catalyst loading (1%) of DBU. Selective N-formylation of amines is achieved using the same catalytic system at a lower reaction temperature

Advanced Synthesis & Catalysis published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C14H23N, Product Details of C14H23N.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Verardo, Giancarlo published the artcileRevisitation of the reaction between aniline and formaldehyde. Observation of a stable monomeric N-methylene aromatic amine, Application In Synthesis of 2909-77-5, the publication is Journal of the Chemical Society, Chemical Communications (1985), 1787-8, database is CAplus.

Reaction of 2,6-(Me₂CH)₂C₆H₃NH₂ with poly(oxymethylene) (I) at ?100¡ã gave 2,6-(Me₂CH)₂C₆H₃N:CH₂ (II), characterized by spectroscopic and anal. data. Hydrolysis, reduction, and acetylation reactions of II are reported. Analogous reaction of I with 2,6-Me₂C₆H₃NH₂ gave an equilibrium mixture of 2,6-Me₂C₆H₃N:CH₂ and an oligomeric species.

Journal of the Chemical Society, Chemical Communications published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C7H10O4, Application In Synthesis of 2909-77-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Das, Shoubhik published the artcileMetal-Free Catalyst for the Chemoselective Methylation of Amines Using Carbon Dioxide as a Carbon Source, Recommanded Product: 2,6-Diisopropyl-N,N-dimethylaniline, the publication is Angewandte Chemie, International Edition (2014), 53(47), 12876-12879, database is CAplus and MEDLINE.

N-methylation of amines is an important step in the synthesis of many pharmaceuticals and has been widely applied in the preparation of other key intermediates and chems. Therefore, the development of efficient methylation methods has attracted considerable attention. In this respect, carbon dioxide is an attractive C₁ building block because it is an abundant, renewable, and nontoxic carbon source. Consequently, we developed a highly chemoselective, metal-free catalytic system that operates under ambient conditions for the N-methylation of amines.

Angewandte Chemie, International Edition published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C14H23N, Recommanded Product: 2,6-Diisopropyl-N,N-dimethylaniline.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Cabrero-Antonino, Jose R. published the artcileA general protocol for the reductive N-methylation of amines using dimethyl carbonate and molecular hydrogen: mechanistic insights and kinetic studies, Category: catalysis-chemistry, the publication is Catalysis Science & Technology (2016), 6(22), 7956-7966, database is CAplus.

Herein, a general and selective ruthenium-catalyzed reductive methylation of amines using di-Me carbonate as a C₁ source and mol. hydrogen as a reducing agent has been reported. Notably, this methodol. allows N-methylated tertiary aromatic and aliphatic amines to be obtained with good to excellent yields using a green, non-toxic and biodegradable carbon source in the presence of an in situ formed Ru/Triphos complex. The catalytic protocol presented here opens the possibility of developing new sustainable processes for the selective synthesis of N-Me substituted amines using mol. hydrogen. Mechanistic and kinetic studies have been carried out in order to understand the pathways involved in the general reaction mechanism for the N-methylation of aniline.

Catalysis Science & Technology published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C14H23N, Category: catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia