Name | 6-Methyl-3-hepten-2-one |
Synonyms | iso-Amylideneacetone 6-methylhept-3-en-2-one 6-Methyl-3-hepten-2-one 6-Methyl-3-Heptene-2-One 3-Hepten-2-one, 6-methyl- |
CAS | 2009-74-7 |
Molecular Formula | C8H14O |
Molar Mass | 126.2 |
Density | 0.8443 |
Melting Point | -66.9°C (estimate) |
Boling Point | 179°C |
Refractive Index | 1.4427 |
Physical and Chemical Properties | Chemical colorless liquid. The boiling point is 178-180 ℃,65 ℃(1.33kPa) has a fruity smell. |
Use | Uses for organic synthesis. |
It is obtained by condensation of isovaleraldehyde and acetone. Add isovaleraldehyde and acetone to water, stir and cool to 15-20 ℃, and slowly add sodium hydroxide solution. React at about 30 ℃ for 8-10h. Divide the oil layer and wash it with water. Add anhydrous sodium sulfate to dry and filter. The filtrate is subjected to atmospheric distillation to collect the fraction at 172-180 ℃, which is 6-methyl-3-hepten-2-one.
Use | for organic synthesis. |
production method | from isovaleraldehyde and acetone condensation. Isovaleraldehyde and acetone were added to water, cooled to 15-20 °c with stirring, and sodium hydroxide solution was slowly added. Reaction was carried out at about 30 °c for 8-10H. The oil layer was separated and washed with water. Anhydrous sodium sulfate was added, dried and filtered. The filtrate was subjected to atmospheric distillation to collect a 172-180 ° C. Fraction, I .e., 6-methyl-3-hepten-2-one. |