Process for preparing insect pheromones

Details Process for preparing insect pheromones Process for preparing insect pheromones

1978-11-16

1980-07-15

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4720

Patent

active

042128307

ABSTRACT:
The specification discloses a novel process for the preparation of 11-tetradecenal and novel intermediates therefor. There is also disclosed processes for the intermediates. The novel intermediates include 1,1-dialkoxy-9-halo-nonane and 1,1-dialkoxy-11-tetradecene. There is further disclosed a process for preparing a mixture of cis- and trans-11-tetradecenal at the molecular ratio of approximately 1-cis-form to 9 trans-form, by reacting a Grignard reagent of 1,1-dialkoxy-9-halo-nonane with a mixture (approximately 60:40) of 1-chloro-2-pentene and 3-chloro-1-pentene and thereafter hydrolyzing thus formed 1,1-dialkoxy-11-tetradecene. 11-Tetradecenal is useful as a sex pheromone against the female eastern spruce budworm (Choristoneura fumiferana). The 9:1 ratio of trans/cis isomers is believed to be the most effective ratio to use against the budworms.

REFERENCES:
patent: 3821421 (1974-06-01), Bergeman et al.

Affiliated with

Also associated with

Rating

Process for preparing insect pheromones does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing insect pheromones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing insect pheromones will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-463788