| 摘要 |
NEW MATERIAL:A 1-halo-3-decene expressed by the formula (X is halogen). EXAMPLE:1-Bromo-(Z)-3-decene. USE:An intermediate for producing a sex pheromone acting substances against peach fruit moth (injurious insect of apples and peaches). PREPARATION:3-Decyn-1-ol is reduced to give 3-decen-1-ol, which is then halogenated to afford the aimed compound expressed by formula I . The resultant compound is then reacted with magnesium to give the novel corresponding Grignard reagent, which is reacted with a compound expressed by formula II (n is an integer 5-8) to afford a novel substance expressed by formula III. The resultant novel substance expressed by formula III is oxidized to give a compound, expressed by formula IV, and having the above-mentioned action. The compound expressed by formula IV (n is 7 or 8) exhibits more improved above- mentioned action than the compound expressed by formula IV (n is 5 or 6), and the Z isomer shows more improved action than any other isomer or a mixture thereof.
|
