2,4-Dichlorothieno[2,3-d]pyrimidine(CAS: 18740-39-1)

2,4-Dichlorothieno[2,3-d]pyrimidine is a crystalline solid with a molecular weight of approximately 219.03 g/mol. It has a low solubility in water but is more soluble in organic solvents such as ethanol and acetone. Chemically, it is relatively unreactive under normal conditions but can undergo substitution reactions under certain conditions. It is stable under normal storage conditions but should be handled with care, especially when exposed to strong reducing agents.

2,4-Dichlorothieno[2,3-d]pyrimidine can be synthesized via the condensation of 2,4-dichlorothiophene with 2,3-diaminopyrimidine. The reaction is typically carried out in the presence of an acid catalyst, such as sulfuric acid, with a yield of about 70-80%. The reaction is selective and the product is isolated by crystallization from an appropriate solvent.

2,4-Dichlorothieno[2,3-d]pyrimidine is primarily used in the pharmaceutical industry as an intermediate for the synthesis of various drugs. It is also used in the polymer industry for the development of novel materials and in the semiconductor industry for the production of electronic materials. Additionally, it may be used in the production of sensors and other specialized applications.

When handling 2,4-Dichlorothieno[2,3-d]pyrimidine, ensure safety gloves, goggles, and a lab coat are worn. Work in a well-ventilated area or fume hood to minimize exposure. Store the compound in a cool, dry place away from direct sunlight. Spills should be handled by neutralizing the material with an appropriate agent before disposal. Always refer to the Material Safety Data Sheet (MSDS) for specific safety guidelines and emergency procedures.