356763-82-1

Upstream product

• 50-00-0 formaldehyd 
• 2772-45-4 2,4-di-cumylphenol 
• 599-64-4 p-cumylphenol 
• 98-83-9 isopropenylbenzene 
• 100-97-0 hexamethylenetetramine 

Downstream Products

• 1001939-68-9 2-{3,5-bis(1-methyl-1-phenylethyl)-2-hydroxyphenyl}benzothiazole 
• 1226910-12-8 2,2'-bis((3,5-bis(α,α'-dimethylbenzyl)-2-hydroxybenzylidene)amino)-6,6'-dimethyl-1,1'-biphenyl 
• 1226910-13-9 1-((3,5-bis(α,α'-dimethylbenzyl)-2-hydroxybenzylidene)amino)-2-phenylethane 
• 215033-58-2 1-((3,5-bis(α,α'-dimethylbenzyl)-2-hydroxybenzylidene)amino)benzene 
• 1242146-92-4 C₃₁H₂₉F₂NO 
• 1361946-43-1 N,N'-3,5-bis(α,α-dimethylbenzyl)-2-hydroxysalicylidene-3-(aminomethyl)benzylamine 
• 1361946-40-8 N,N'-3,5-bis(α,α-dimethylbenzyl)-2-hydroxysalicylidene-2,2-dimethyl-1,3-diamine 

Relevant academic research and scientific papers

Synthesis of allyl-terminated syndiotactic polypropylene: Macromonomers for the synthesis of branched polyolefins

Low molecular weight syndiotactic polypropylene (syndio-PP) with an olefin end group was synthesized using methylaluminoxane-activated bis(phenoxyimine)titanium dichloride ((PHI)2TiCl2) catalysts. Propylene enchainment occurs by a 2,

Enantioselective Hydroboration of Ketones Catalyzed by Rare-Earth-Metal Complexes Supported with Phenoxy-Functionalized TsDPEN Ligands

Six novel chiral rare-earth-metal complexes bearing the phenoxy-functionalized TsDPEN ligand H3L1 (H3L1 = N-((1R,2R)-2-((3,5-di-Tert-butyl-2-hydroxybenzyl)amino)-1,2-diphenylethyl)-4-methylbenzenesulfonamide) were synthesized successfully and well characterized. The solid-state structures of four tetranuclear rare-earth-metal complexes [RE2L13]2 (RE = Nd (1), Sm (2), Eu (3), Gd (4)) and the dual-core yttrium complex Y2L13 (5) were determined by X-ray diffraction, respectively. The structure of lanthanum complex 6 was speculated by the 1H DOSY spectroscopy in THF-d8 together with DFT calculations. Complexes 1-5 were employed to catalyze the enantioselective hydroboration of ketones and α,β-unsaturated ketones using pinacolborane (HBpin) as a reductant, and complex 1 gave better outcomes in comparison to the others. The corresponding secondary alcohols were obtained in excellent yields and moderate ee values. The same results were also achieved using the combined catalyst system of the neodymium amide Nd[N(SiMe3)2]3 with the phenoxy-functionalized TsDPEN ligand H3L1 in a 1:1.5 molar ratio.

Mononuclear Salen-Sodium Ion Pairs as Catalysts for Isoselective Polymerization of rac-Lactide

A series of mononuclear salen-sodium anions, as the first examples, were synthesized with tetra-alkyl ammonium as a counterpart cation. These complexes are efficient catalysts for the isoselective ring-opening polymerization of rac-lactide; the molecular weights of polymers are under control and molecular weight distributions are narrow when five equivalents of BnOH is used as an initiator. The best isoselectivity value of Pm = 0.82 was achieved at -70 °C. The experimental results together with a density functional theory calculation show that a ligand-assisted activated monomer mechanism is more reasonable than an activated monomer mechanism for this system.

Amino-acid schiff base, and synthesis method and application thereof

The invention discloses an amino-acid schiff base, and a synthesis method and an application thereof, relates to an amino-acid schiff base compound and a synthesis method and application thereof and mainly aims at solving the problem of poor organic phase solubility of an existing salicylaldehyde-amino acid schiff base compound. The invention relates to a structural formula of an amino-acid schiff base fluorescent probe compound. The synthesis method comprises the steps of (1) FriedelCrafts alkylation reaction; (2) formylation reaction; and (3) condensation reaction. The invention further discloses an application of the amino-acid schiff base in qualitative and quantitative analysis of trace metal ions Zn as a fluorescent probe. A hydrophobic group is introduced into a benzene ring of salicylaldehyde and is subjected to condensation reaction with amino acid to generate the amino-acid schiff base, and a complex generated through coordination of the amino-acid schiff base and zinc ions has good solubility in an organic phase and a fluorescent detection signal is obviously strengthened. The amino-acid schiff base can be applied to the field of the fluorescent probe.

Ortho-aminophenol Schiff base, and synthesis method and application thereof

The invention discloses an ortho-aminophenol Schiff base, and a synthesis method and application thereof, and relates to an ortho-aminophenol Schiff base compound, and a synthesis method and application thereof. The invention aims to solve the problem of poor organic phase solubility of a conventional salicylaldehyde ortho-aminophenol Schiff base zinc complex. The invention relates to a structural formula of an ortho-aminophenol Schiff base fluorescent probe compound. The synthesis method comprises: 1, FriedelCrafts alkylation; 2, formylation reaction; 3, condensation reaction. The ortho-aminophenol Schiff base serving as a fluorescent probe is applied to qualitative and quantitative analysis for a trace metal ion Zn2+. After a lipophilic group is introduced to a benzene ring of salicylaldehyde, the condensation reaction with ortho-aminophenol is performed to generate the ortho-aminophenol Schiff base, and a complex generated by coordination between the ortho-aminophenol Schiff base and a zinc ion presents good solubility in an organic phase, and a fluorescence detection signal is obviously enhanced. The invention can be applied to the field of fluorescent probes.

Design of postmetallocene catalytic systems of arylimine type for olefin polymerization: XVI. Synthesis of (N-aryl)salicylaldimines containing pent-4-enyloxy group and their complexes with titanium(IV) dichloride

Reactions of p-(pent-4-enyloxy)aniline with salicylaldehyde containing versatile substituents in the positions 3 and 5 in an open system without solvent at 130°C afforded a series of (N-aryl)salicylaldimines, which with TiCl2(OPr-i)2 formed complexes of titanium(IV) dichloride L2TiCl2.

Asymmetric oxidation of sulfides with H2O2 catalyzed by titanium complexes of Schiff bases bearing a dicumenyl salicylidenyl unit

The sterically hindered Schiff bases (L3-L5), prepared from 3,5-dicumenyl salicylaldehyde and chiral amino alcohols, were used in combination with Ti(OiPr)4 for asymmetric oxidation of aryl methyl sulfides with H2O2 as terminal oxidant. Among the ligands L3-L5, L4 with a tert-butyl group in the chiral carbon of the amino alcohol moiety gave the best result with 89% yield and 73% ee for the sulfoxidation of thioanisole under optimal conditions [with 1 mol% of Ti(OiPr)4 in a molar ratio of 100:1:1.2:120 for sulfide:Ti(OiPr)4:ligand:H2O2 in CH 2Cl2 at 0 °C for 3 h]. The reaction afforded good yield (84%) with a moderate enantioselectivity (62% ee) even with a lower catalyst loading from 1.0 to 0.5 mol%. The oxidations of methyl 4-bromophenyl sulfide and methyl 4-methoxyphenyl sulfide with H2O2 catalyzed by the Ti(OiPr)4-L4 system gave 79-84% yields and 54-59% ee of the corresponding sulfoxides in CH2Cl2 at 20 °C. The chiral induction capability of the cumenyl-modified sterically hindered Schiff bases for sulfoxidation was compared with the conventional Schiff bases bearing tert-butyl groups at the 3,5-positions of the salicylidenyl unit.

Synthesis of salicylaldehydes bearing bulky substituents in the positions 3 and 5

Reaction of 2,4-disubstituted phenols with paraformaldehyde in the presence of SnCl4 and 2,6-lutidine afforded a number of new salicylaldehydes, containing bulky substituents (tert-butyl, 1-phenylethyl, 1-(4-tert- butylphenyl)ethyl, α-cumyl, and trityl) in the positions 3 and 5.