Molecular Formula | C8H10O2 |
Molar Mass | 138.164 |
Density | 1.126g/cm3 |
Boling Point | 267.357°C at 760 mmHg |
Flash Point | 111.282°C |
Vapor Presure | 0.001mmHg at 25°C |
pKa | 12.94±0.60(Predicted) |
Refractive Index | 1.533 |
Physical and Chemical Properties | Chemical quality This product is a yellow oily liquid, insoluble in water, soluble in benzene, chloroform and other solvents. |
Use | Uses Propargyl ketone, namely (±) 2-propargyl-3-methyl-4-hydroxy-2-cyclopenten-1-one, is an important intermediate of the hygienic insecticide propargyl. |
Its synthesis method is similar to allyl alcohol ketone. It also uses 2-methylfuran as a raw material to generate 5-methylfurfural through formylation, and then reacts with Grignard reagent formed by bromopropyne or chloropropyne to hydrolyze to obtain 2-(1-hydroxy-3-butynyl)-5-methylfuran. The compound is further rearranged in a buffer solution, 2-propargyl-3-methyl-3-hydroxy-4-cyclopenten-1-one was obtained. Under the same conditions, the aqueous solution was adjusted to an alkaline reaction, and the translocation was generated 2-propargyl-3-methyl-4-hydroxy-2-cyclopenten-1-one.