Building Blocks

5H,6H-[1,2,4]Triazolo[4,3-c]pyrimidin-5-one is a potent antitumor agent that is structurally similar to the cytotoxic agents mcf-7 and doxorubicin. It has been synthesized by the reaction of an enaminone with diazonium salt. The synthesis of 5H,6H-[1,2,4]Triazolo[4,3-c]pyrimidin-5-one has been carried out using a number of techniques including halide exchange reactions with amines and enaminones. This compound has been shown to be active against breast cancer cells in culture and induces apoptosis by interfering with DNA replication.

2-Bromo-3,3,3-trifluoro-1-propene is a chemical compound that has been synthesized in an asymmetric reaction. The reactant is bromopropane and the product is 2,2,2-trifluoropropene. The methylene group on the propene molecule is activated by the nucleophilic attack of a fluoride ion from hydrogen fluoride to form a cavity with a highly strained bond. The kinetic study of this reaction revealed that the activation energy for the reaction is 42 kJ/mol. Palladium-catalyzed coupling reactions are catalyzed by palladium and require nonpolar solvents such as toluene or dichloromethane. This type of reaction has been shown to be exothermic with an isolated yield of 1%.