1150-55-6

Basic information

• Product Name: diethyl 1,4-dihydro-2,4,6-trimethyl-3,5-pyridinedicarboxylate
• Synonyms: 3,5-Pyridinedicarboxylicacid, 2,4,6-trimethyl-, diethyl ester (6CI,8CI,9CI); 2,4,6-Trimethyl-3,5-pyridinedicarboxylicacid diethyl ester; 3,5-(Diethoxycarbonyl)-2,4,6-trimethylpyridine;3,5-(Diethoxycarbonyl0collidine;3,5-Bis(ethoxycarbonyl)-2,4,6-trimethylpyridine; Diethyl2,4,6-trimethyl-3,5-pyridinedicarboxylate; NSC 243815
• CAS NO: 1150-55-6
• Molecular Formula: C₁₄H₁₉NO₄
• Molecular Weight: 0
• EINECS: 211-188-0
• Mol File: 1150-55-6.mol

Chemical Properties

• Boiling Point: 318.5°C at 760 mmHg
• Flash Point: 146.4°C
• Appearance: /
• Density: 1.104g/cm³
• Vapor Pressure: 0.000359mmHg at 25°C
• Refractive Index: 1.508
• CAS DataBase Reference: diethyl 1,4-dihydro-2,4,6-trimethyl-3,5-pyridinedicarboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: diethyl 1,4-dihydro-2,4,6-trimethyl-3,5-pyridinedicarboxylate(1150-55-6)
• EPA Substance Registry System: diethyl 1,4-dihydro-2,4,6-trimethyl-3,5-pyridinedicarboxylate(1150-55-6)

Safety Data

• Hazardous Substances Data: 1150-55-6(Hazardous Substances Data)

Usage

Uses

Used in Agriculture:
Thiamethoxam is used as an insecticide for [protecting crops from pests] in various crops such as cotton, corn, and soybeans. It is particularly effective against sucking insects like aphids and whiteflies due to its ability to disrupt the nervous system of insects, causing paralysis and ultimately death.
However, there is growing concern over the potential impacts of Thiamethoxam on non-target organisms, particularly pollinators like bees, and its potential to accumulate in the environment. This has led to ongoing research and discussions on the safe and responsible use of neonicotinoid insecticides in agriculture.

InChI:InChI=1/C14H19NO4/c1-6-18-13(16)11-8(3)12(14(17)19-7-2)10(5)15-9(11)4/h6-7H2,1-5H3

Upstream product

• 61171-83-3 C₃₈H₃₀N₈ 
• 632-93-9 diethyl 1,4-dihydro-2,4,6-trimethylpyridine-3,5-dicarboxylate 
• 19262-50-1 1,3,5-(2,4,6-Tricyanobenzotriyl)tris(N¹,N¹-diphenylhydrazyl)-Triradikal 
• 18998-42-0 N_.N-Diphenyl-N'-(3.5-dichlor-2.4.6-tricyan-phenyl)-hydrazyl 
• 18998-43-1 2.4.6-Tricyan-5-chlorphenyl-1.3-bis-(N_.N-diphenylhydrazyl) 
• 141-97-9 ethyl acetoacetate 
• 100-52-7 benzaldehyde 
• 64-17-5 ethanol 

Downstream Products

• 633318-43-1 3,5-bis-hydroxymethyl-2,4,6-trimethyl-pyridine 
• 632-93-9 diethyl 1,4-dihydro-2,4,6-trimethylpyridine-3,5-dicarboxylate 
• 2199-54-4 2,4,5-trimethyl-3-ethoxycarbonylpyrrole 

Relevant articles and documents

Highly crystalline poly(heptazine imides) by mechanochemical synthesis for photooxidation of various organic substrates using an intriguing electron acceptor – Elemental sulfur

Low-defect potassium poly(heptazine imide) (PHIK-BM) was engineered for application in photocatalytic oxidation of organic substrates. Mechanochemical pretreatment of a mixture of 5-aminotetrazole in LiCl/KCl eutectics using high-energy ball milling afforded a highly homogeneous mixture that, upon sequential thermolysis at 600?°C, gave nanosized particles of PHIK–BM. The photocatalytic activity of the free-standing PHIK–BM plates was assessed in the oxidation of benzyl alcohol to benzaldehyde under visible light irradiation using elemental sulfur as an electron acceptor. Both quantitative conversion (>99%) of benzyl alcohol and selectivity (>98%) with respect to benzaldehyde were achieved. The developed method was extended to aliphatic alcohol oxidation coupled with multicomponent Hantzsch 1,4-dihydropyridine synthesis. These 1,4-dihydropyridines were also photocatalytically oxidized by PHIK–BM to the corresponding substituted pyridines, with very good yields and under mild metal-free conditions.

Synthesis and characterization of Si-Zr-Mo nanocomposite as a rapid and efficient catalyst for aromatization of Hantzsch 1,4-dihydropyridines

Nanocomposite of Silica-zirconia-molybdate designated as Si-Zr-Mo was prepared via the reaction of the in situ generated zirconium-tetra octanoxide [Zr(Oct)4] through condensation of zirconium-tetra-n-butoxide and 1-octanol in a sol-gel method with sulfuric acid and tetraethylorthosilicate (TEOS) followed by grafting of MoO42- on modified silico zirconia nanocomposite under reflux conditions. The prepared nanocomposite was characterized using inductively coupled plasma (ICP), N2 sorption isotherms, transmission electron microscopy (TEM), and FT-IR spectroscopy. The as prepared nanocomposite had a surface area and pore dimension of 140 m 2/g and 1.48 nm, respectively. The morphology of sulphated silico zirconia nanocomposite after immobilization MoO42- has been changed from nanoparticles to nanaorods. It was found that the synthesized nanocomposite successfully catalyze the oxidative dehydrogenation of 1,4-dihydropyridines (1,4-DHPs) with 92-100% conversion and 80-100% selectivity toward the desired products.

Kinetic Investigation on the Hydrogen Transfer from Dihydropyridines to Hydrazyls

The results of a kinetic study on the hydrogen transfer between different dihydropyridines and mono-, bis- and trishydrazyls of the tricyanobenzene series are described.The reactions have been found to obey in all cases a second-order law.The influences of solvent medium, redox-potentials of the reactants and temperature on the rates of reactions have been investigated. - Keywords: Dihydropyridines, Hydrazyls, Hydrogen Transfer, Kinetics