MeCH:CHCH:CH(CH2)6CH2SiR1R2R3 [I; R1, R2 = C1-6 alkyl; R3 = C16 alkyl, Ph], useful as pesticides, are prepd. by treating trans,trans-8,10-dodecadien-1-ol (II) with ClSiR1R2R3 at 10-60 Deg in the presence of a proton acceptor. Thus, 18.2 g II, 17.5 mL Me3SiCl and 50 mL Et3N were kept at 25 Deg in Et2O for 15 h to give I (R1-3 = Me) which captured 148 adult male Laspeyresia pomonella over a 78 day period when tested as a sexual pheromone and applied to apple trees in a glue-based dispenser contg. up to 10 mg I. [on SciFinder (R)]
Title
Trans,trans-8,10-Dodecadien-1-yloxysilanes as pesticides
Date
1986
Publisher
(Ciba-Geigy A.-G., Switz.).
Note
CAN 105:97240
26-2
Biomolecules and Their Synthetic Analogs
Patent
written in German.
19860102
38568-98-8P; 103841-93-6P; 103841-94-7P; 103841-95-8P; 103841-96-9P Role: SPN (Synthetic preparation), PREP (Preparation) (prepn. of, as pheromone pesticide for Laspyresia pomonella); 33956-49-9 Role: PROC (Process) (substitution of, with chlorotrialkylsilanes, silyl derivs. from); 13465-78-6D Role: PROC (Process) (substitution of, with dodecadienol, dodecadienyloxysilane derivs. from)
Designated States R: AT, BE, CH, DE, FR, GB, IT, LI, NL.
A2
CH
84-2572
19840525
Alternative title(s) :
(de) Schädlingsbekämpfungsmittel.
(fr) Pesticide.
(en) Pesticide.
Other identifier(s)
EPO Family ID: 25688745
Record creation date
2006-03-03
