Building Blocks

Versatile small molecule scaffold

3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid is a synthetic chemical that is used as a pesticide. This chemical has been found to be more effective than other pesticides because it can inhibit the synthesis of fatty acids, which are necessary for the growth of insect larvae. 3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid is synthesized by reacting sodium hydroxide solution with triethyl orthoformate in the presence of hexamethylenetetramine. This reaction produces a mixture of diethyl ester and carboxylate esters, which are then separated from each other. The resulting carboxylate ester is then oxidized to produce 3-(difluoromethyl)-1-methyl-1H pyrazole 4 carboxylic acid.

3,5-Dimethyl-4H-1,2,4-triazol-4-amine is a crystalline compound with antiproliferative and anti-inflammatory properties. It has been shown to inhibit the growth of cancer cells in vitro and in vivo. The mechanism of action is not fully understood but may be due to inhibition of DNA synthesis or by inhibiting the activity of topoisomerase II. 3,5-Dimethyl-4H-1,2,4-triazol-4-amine can also act as an antioxidant by scavenging reactive oxygen species (ROS). 3,5-Dimethyl-4H-1,2,4-triazol-4-amine has been shown to have a low toxicity in animals and humans.

Ethyl 3-formyl-1H-pyrrole-2-carboxylate is a formyl compound with the molecular formula C8H8O3. It is a colorless liquid that has a strong odor. The compound can be obtained by the reaction of ethyl acetoacetate and pyrrole in the presence of aluminum chloride. The compound has been studied for its nuclear magnetic resonance (NMR) properties. It has two conformers, which are distinguished by their different chemical shifts, and this difference can be used to study coupling between the carbonyl group and other groups in the molecule.

2,4-Dichloropyrido [2,3-D] pyrimidine is a regioselective chlorination agent that can be used for the synthesis of various organic compounds. It is often used in cross-coupling reactions to form carbon-carbon bonds. 2,4-Dichloropyrido [2,3-D] pyrimidine has been shown to give high yields and is selective for disubstituted or monosubstituted substrates. This compound is also useful for the functionalization of C-H bonds via palladium-catalyzed coupling reactions.

Versatile small molecule scaffold

3-Methoxythiophene-2-carbaldehyde is a ligand that has been shown to form a stable complex with potassium chloride. This compound is also reactive, and can be stabilized in the reaction vessel. In the presence of sulfate ions, 3-methoxythiophene-2-carbaldehyde will react to form a phosphotungstic acid precipitate. The dehydrated salt can be recrystallized by adding phosphotungstic acid, which stabilizes the product.