174829-13-1

Upstream product

• 32044-22-7 1,2-cyclohexane diammonium L-tartrate 
• 37942-07-7 3,5-di-tert-butyl-2-hydroxybenzaldehyde 
• 694-83-7 rac-diaminocyclohexane 

Downstream Products

• 176763-62-5 (R,R)-(-)-N,N’-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminocobalt(II) 
• 138124-32-0 Mn(Salen)Cl 

Relevant academic research and scientific papers

Oxygen-Triggered Switchable Polymerization for the One-Pot Synthesis of CO2-Based Block Copolymers from Monomer Mixtures

Switchable polymerization provides the opportunity to regulate polymer sequence and structure in a one-pot process from mixtures of monomers. Herein we report the use of O2 as an external stimulus to switch the polymerization mechanism from the

Mechanistic aspects of the copolymerization reaction of carbon dioxide and epoxides, using a chiral salen chromium chloride catalyst

The air-stable, chiral (salen)CrIIICI complex (3), where H2salen = N, N-bis(3,5-di-tert-butyl-salicylidene)-1,2-cyclohexene diamine, has been shown to be an effective catalyst for the coupling of cyclohexene oxide and carbon dioxide

Stable iridium(iv) complexes supported by tetradentate salen ligands. Synthesis, structures and reactivity

A series of trans-dichloroiridium(iv)-salen complexes were synthesized and structurally characterized by spectroscopic means and X-ray crystal structures. These Ir(iv) complexes are able to catalyze intramolecular C-H amination of aryl azides. The catalytic amination was drastically accelerated under microwave-assisted conditions, and possibly involves Ir-imido intermediates as supported by high-resolution ESI-MS analysis.

Schiff base manganese compound, preparation method thereof and application thereof

The present invention provides a Schiff base manganese compound, a preparation method thereof and an application thereof. The Schiff base manganese compound has a structure of a formula I. The provided Schiff base manganese compound has a NNOO tridentate coordination ability to form a metal active center binding site to obtain a tetracoordinate Schiff base manganese catalyst. The Schiff base manganese compound is used to catalyze a ring-opening polymerization of lactide and caprolactone; the Schiff base manganese catalyst has very high activity for the ring-opening polymerization of the lactide and caprolactone, can also realize the polymerization of the monomers at room temperature, at the same time has a certain selectivity to the racemic lactide and can slightly improve the regularity of the microscopic chain structure of the polymerization product. Under the action of the catalyst, a monomer conversion rate of polylactic acid can reach 89-96%; the stereoregularity Pm of the obtained polylactic acid can reach 0.43-0.60; and a monomer conversion rate of polycaprolactone can reach 90%-95%.

Schiff base iron compound as well as preparation method and application thereof as catalyst

The invention provides a schiff base iron compound as well as a preparation method and application thereof as a catalyst. The schiff base iron compound provided by the invention is of a structure of formula (I) as shown in the specification, in the formula (I), Y is -CH2-CH2-CH2 or R is -H or alkyl. The schiff base iron compound provided by the invention has the capability of NNOO quadridentation, then a metal activity center binding site is formed, and a quadridentation schiff base iron catalyst is prepared. The schiff base iron compound is used for catalyzing ring opening polymerization of lactide and caprolactone, very high catalysis activity is achieved, meanwhile very high racemize lactide selectivity is achieved, and the regulation of a microcosmic chain structure of a polymerization product is improved. Tests show that the monomer conversion rate of polylactic acid prepared by using the method provided by the invention can be up to 90%, and the monomer conversion rate of polycaprolactone is up to 99%. When the lactide is racemize lactide, the three-dimensional regularity (Pm) of obtained polylactic acid is up to 0.60.

Encapsulation of SALEN- and SALHD-Mn(III) complexes in an Al-pillared clay for bicarbonate-assisted catalytic epoxidation of cyclohexene

[Mn(3,5-dtSALEN)Cl] (I) and [Mn(3,5-dtSALHD)Cl] (II) complexes (3,5-dtSALEN = N,N′-bis(3,5-di-tert-butylsalicylaldehyde)ethylenediamine; 3,5-dtSALHD = N′N-bis-(3,5-di-tert-butylsalicylaldehyde)-1,2-cyclohexanediamine) were successfully encapsulated within

Selective H2O2 oxidation of organic sulfides to sulfoxides catalyzed by cobalt(III)-salen ion

Abstract The catalytic activity of cobalt(III)-salen ion catalyzed selective H2O2 oxidation of organic sulfides to sulfoxides is examined using spectrophotometric technique. The catalytic reaction proceeds through Michaelis-Menten kinetics and the rate of the reaction is highly sensitive to the nature of the substituent present in the substrate as well as in the salen ligand. The product analyses show that the aryl methyl sulfides are selectively oxidized to the corresponding sulfoxides. Based on the spectral and kinetic studies two possible mechanisms have been proposed.

New phosphorescent platinum(ii) Schiff base complexes for PHOLED applications

Some new symmetric and asymmetric platinum(ii) Schiff base complexes with bulky substituents such as tert-butyl and triphenylamino groups have been synthesized which effectively reduced the aggregation or excimer formation. Using selected complexes as phosphorescent emitting materials, yellow light-emitting devices were fabricated with improved efficiency compared with the previously reported analogues. In addition, the phosphorescent white organic light-emitting device (WOLED) was fabricated using a single emissive layer composed of yellow- and blue-emitting materials. The Royal Society of Chemistry 2012.