97746-37-7

Upstream product

• 37942-07-7 3,5-di-tert-butyl-2-hydroxybenzaldehyde 
• 62-53-3 aniline 
• 98-95-3 nitrobenzene 

Downstream Products

• 1363321-86-1 [(3,5-di-tert-butylsalicylaldehydato)(N-phenyl-3,5-di-tert-butyl-salicylaldiminato)]copper(II) 
• 1204435-43-7 cis-bis(N-phenyl-3,5-ditert-butylsalicylaldiminato)copper(II) 
• 915962-53-7 (N-phenyl-3,5-di-tert-butylsalicylaldimine^(1-))BBr₂ 
• 915962-52-6 (N-phenyl-3,5-di-tert-butylsalicylaldimine^(1-))BCl₂ 
• 1044178-87-1 [C₆H₅N=CH(OC₆H₂tBu₂-2,4)]VCl₂(THF)2 
• 915962-51-5 (N-phenyl-3,5-di-tert-butylsalicylaldimine^(1-))B(OMe)2 

Relevant academic research and scientific papers

Controlled ring-opening polymerization of ε-caprolactone catalyzed by a rare earth Schiff-base complex

Lanthanide Schiff-base complexes with the formula [3,5-tBu 2-2-(O)C6H2CH=NC6H5] 3Ln(THF) (Ln = Sc, Y, La, Nd, and Gd) were synthesized by the metathesis reaction of anhydrous LnCl3 with a Schiff-base sodium salt in good yields (> 80). The complex containing a neodymium center was characterized by X-ray diffraction and the structure around the neodymium atom could be described as a pentagonal bipyramid. The ring-opening polymerization (ROP) of ε-caprolactone (CL) was successfully carried out using the lanthanide Schiff-base complexes as catalysts, and the neodymium complex leads to a controlled ROP of CL. The influence of the reaction conditions on the monomer conversion, molecular weight, and molecular weight distribution of the resultant polymers was investigated. The polymerization rate was first-order with respect to the monomer concentration. End-group analyses of the oligomer of CL showed that the polymerization underwent a coordination-insertion mechanism.

Optical Control of Polarization Switching in a Single-Component Organic Ferroelectric Crystal

The optical control of polarization switching is attracting tremendous interest because photoirradiation stands out as a nondestructive, noncontact, and remote-control means beyond an electric or strain field. The current research mainly uses various photoexcited electronic effects to achieve the photocontrol polarization, such as a light-driven flexoelectric effect and a photovoltaic effect. However, since photochromism was discovered in 1867, the structural phase transition caused by photoisomerization has never been associated with ferroelectricity. Here, we successfully synthesized an organic photochromic ferroelectric with polar space group Pna21, 3,4,5-trifluoro-N-(3,5-di-tert-butylsalicylidene)aniline, whose color can change between yellow and orange via laser illumination. Its dielectric permittivity and spontaneous polarization can be switched reversibly with a photoinduced phase transition triggered by structural photoisomerization between the enol form and the trans-keto form. To our knowledge, this is the first photoswitchable ferroelectric crystal to achieve polarization switching through a structural phase transition triggered by photoisomerization. This finding paves the way toward photocontrol of smart materials and biomechanical applications in the future.

Highly efficient oxidation of alcohols catalyzed by Ru(II) carbonyl complexes bearing salicylaldiminato ligands

Reaction of Ru3(CO)12 with 2.0 equiv of RN = CH(3,5-tBu2C6H2OH) (R = C6H5, L1; R = 4-MeC6H4, L2; R = 4-OMeC6H4, L3; R = 4-ClC6H4, L4; R = 4-BrC6H4, L5; R = 4-CF3C6H4, L6) in refluxing xylene afforded the corresponding bis-chelate Ru(II) complexes 1a–1f [RN = CH(3,5-tBu2C6H2O)]2Ru(CO)2 and one of the imine bonds reduced complexes {[RN = CH(3,5-tBu2C6H2O)]-[RNH-CH2(3,5-tBu2C6H2O)]}Ru(CO)2 2a–2f. All the ruthenium complexes were fully characterized by NMR, IR and elemental analysis. In addition, the structures of complexes 1a–1f, 2b, 2d and 2f were further confirmed by single-crystal X-ray diffraction. When activated with N-methylmorpholine-N-oxide (NMO), these Ru complexes displayed high catalytic activities toward oxidation of both 1° and 2° alcohols. For most cases, the reaction can complete within 1 h in refluxing CH3CN.

New platinum(II) one-armed Schiff base complexes for blue and orange PHOLEDs applications

The condensation of different groups substituted salicylaldehydes with aniline and 2,4,5-trifluoroaniline, afforded five one-armed Schiff base ligands HL1, HL2, HL3, HL4 and HL5. And their platinum(II) complexes Pt(L1)2, Pt(L2)2, Pt(L3)2, Pt(L4)2, Pt(L5)2 and PtL5·DMSO were prepared through the metallation of ligands with K2PtCl4. All ligands and complexes were characterized by 1H NMR, infrared spectroscopy, mass spectrometry and single crystal X-ray diffraction. And their thermal stability, photophysical properties, and electrochemical behaviors were investigated in detail. Using these complexes as phosphorescent emitting materials, blue to orange light-emitting devices were fabricated with moderate efficiencies. The maximum current efficiency, power efficiency, and brightness for the 3.0 wt % Pt(L3)2 doped OLED are 1.12 cd A?1, 0.62 l m W?1 and 1521 cd m?2, respectively. Given the synthetic simplicity and ease of structural variation, the results here indicate that these platinum(II) Schiff base complexes are good candidates for phosphorescent OLEDs.

Platinum complex organic light-emitting material and application thereof

The invention relates to synthesis and characteristic determination of a novel Schiff base ligand and platinum complex, and belongs to the coordination chemistry field of inorganic chemistry, wherein the phosphorescence emission can be achieved effectively. According to the novel Schiff base ligand and platinum complex light-emitting material, the maximum ultraviolet absorption wavelength of the platinum complex is 487 nm, the maximum phosphorescence emission wavelength is 618 nm, and the decomposition temperature is 295 DEG C. The novel complex is convenient to synthesize, high in thermostability and not prone to decomposition under high temperature and can be prepared through a simple instrument.

Improvement in Aluminum Complexes Bearing Schiff Bases in Ring-Opening Polymerization of ?-Caprolactone: A Five-Membered-Ring System

A series of five- and six-membered-ring Al complexes bearing Schiff bases was synthesized and their application to the ring-opening polymerization of ?-caprolactone (CL) was studied. The five-membered-ring Al complexes have been shown to have a significan

A Reusable Co Catalyst for the Selective Hydrogenation of Functionalized Nitroarenes and the Direct Synthesis of Imines and Benzimidazoles from Nitroarenes and Aldehydes

The use of abundantly available transition metals in reactions that have been preferentially mediated by rare noble metals, for example, hydrogenations, is a desirable aim in catalysis and an attractive strategy for element conservation. The observation of novel selectivity patterns with such inexpensive metal catalysts is especially appealing. Herein, we report a novel, robust, and reusable cobalt catalyst that permits the selective hydrogenation of nitroarenes in the presence of highly hydrogenation-sensitive functional groups, as well as the direct synthesis of imines from nitroarenes and aldehydes or ketones in the presence of such substituents. Furthermore, we introduce the first base-metal-mediated direct synthesis of benzimidazoles from nitroarenes and aldehydes. Functional groups that are easy to hydrogenate are again well tolerated.

Metal and ligand-substituent effects in the immortal polymerization of rac -lactide with Li, Na, and K phenoxo-imine complexes

A series of lithium, sodium, and potassium complexes with phenoxo-imine ligands M[(O-2-(RN=CH)C6H4] [R = C6H5; 2-tBuC6H5; 2,6-iPr2C6H3

The enhanced catalytic performance of cobalt catalysts towards butadiene polymerization by introducing a labile donor in a salen ligand

A family of cobalt complexes supported by a tridentate Schiff base ligand with a labile donor (O, S, N) as a pendant arm (Co1-Co12, formulated as CoL 2) were synthesized by the treatment of the corresponding ligands with cobalt acetate tetrahyd

Vanadium(III) phenoxyimine complexes for ethylene or ε-caprolactone polymerization: Mononuclear versus binuclear pre-catalysts

The mononuclear {[C6H4NCH(ArO)]2VCl(THF)} (Ar = 2,4-t-Bu2C6H2 (1), Ar = C 6H4 (2)), {O[C6H4NCH(ArO)] 2}VCl(THF) (Ar = 2,4-t-Bu2C6H2 (3), Ar = C6H4 (4)) and the binuclear vanadium(iii) complexes {[C6H4NCH(ArO)]VCl2(THF)2} 2(μ-CH2CH2) (Ar = 2,4-t-Bu2C 6H2 (5), Ar = C6H4 (6)), have been synthesized and fully characterized. The compounds [C6H 5NCH(ArO)]VCl2(THF)2 (Ar = 2,4-t-Bu 2C6H2 (7), Ar = C6H4 (8)), [2,4,6-Me3-C6H2NCH(ArO)]VCl2 (Ar = 2,4-t-Bu2C6H2 (9), Ar = C 6H4 (10)) and [2,6-i-Pr2-C6H 3NCH(ArO)]VCl2(THF)2 (Ar = 2,4-t-Bu 2C6H2 (11), Ar = C6H4 (12)), {μ-CH2CH2[NCH(C6H4O)] 2VCl(THF)} (14) and {C6H4[NCH(C 6H4O)]2VCl(THF)} (15) were synthesized for comparative polymerization studies. The dizwitterionic compound [2,6-i-Pr 2-C6H3N+(H)CH(C6H 4O)]2VCl2O (13) was also isolated, and presumably formed via a fortuitous hydrolysis reaction. The complexes 2, 5 and 13 have been structurally characterized; the molecular structure of the parent ligand (L5) in 5 is also reported. All complexes have been screened for ethylene as well as ε-caprolactone polymerization, and results are compared against those for known related mono- and bi-nuclear counterparts to evaluate for possible cooperative effects. The compounds 10 and 12 have been supported on modified SiO2, analysed by XPS and subjected to homo-polymerization (ethylene) and co-polymerization (1-hexene and ethylene) studies. The Royal Society of Chemistry 2013.