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
• Article Data: 3

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

General Description

Diethyl 1,4-dihydro-2,4,6-trimethyl-3,5-pyridinedicarboxylate, also known as Thiamethoxam, is a neonicotinoid insecticide used in agriculture to protect crops from a wide range of pests. It works by disrupting the nervous system of insects, causing paralysis and ultimately death. This chemical has systemic properties, meaning it can be taken up by the plant and distributed throughout its tissues, providing long-lasting protection. Thiamethoxam is used on a variety of crops such as cotton, corn, and soybeans, and is known for its effectiveness against sucking insects like aphids and whiteflies. However, there has been growing concern over its potential impacts on non-target organisms, particularly pollinators like bees, and its potential to accumulate in the environment.

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

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

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.

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