7-Methoxycitronellic acid

The identity of methoprene photoproducts has been studied from aqueous emulsions, thin films on glass or silica gel, and in methanolic solution (Figures 3 and 4, 40). As a thin film (0.1 ym) on glass, the half-life of methoprene was about 6 hr. After 93% degradation of parent, more than 50 photoproducts were observed, only five of these present in 3% or higher yield 7-methoxycitronellic acid (4%), 7-methoxycitronellal (4%), the 4,5-epoxide of methoprene (6%), a C12 methyl ketone (3%), and 14C02 (6%). Similar products were encountered on photolysis of a 100 ppm aqueous emulsion of methoprene, except that methoxy-citronellal was isolated only as its dimethyl acetal (9% yield), a presumed artifact of work-up. In addition to the same products identified from thin film studies, at least forty-six other discrete products were detected, but not identified (40). 

Fall has studied the capability of fourteen species of microorganisms to grow on methoprene as sole carbon source. One of these organisms, Cladosporium resinae, was able to utilize methoprene as sole carbon source, while another. Pseudomonas citronellolis, was similarly able to utilize 7-methoxycitronellic acid. (41). 

Methoprene is an insect growth regulator and it is also used as an insecticide for cockroaches. The enantioselective isomerization of 7-methoxygeranylamine in the presence of [Rh((+)-BINAP)2]+ followed by acid hydrolysis provides the intermediate, 7-methoxycitronellal, in high yield with high optical purity (97%, 98% ee, Scheme 6).9 Alternatively, methoxylation of ( -citronellalenamine (98% ee) with methanol in the presence of 97% sulfuric acid followed by hydrolysis gives 7-methoxycitronellal in 79% yield without racemiza-tion (Scheme 6).9... 

Carenyl methyl ketone 222-784-5 Methoxycitronellal 222-807-9 Acid black 52 222-811-0 Acid red 195 222-823-6... 

Undecenol n-Undecenyl alcohol C11H22O2 Amyl hexanoate Butyl heptanoate 2-Ethylhexyl glycidyl ether Ethyl pelargonate Heptyl butyrate Heptyl isobutyrate Hexyl isovalerate Hexyl 2-methyl butyrate Hexyl neopentanoate Hexyl valerate Isoamyl hexanoate Isobutyl heptanoate Isohexyl neopentanoate Isononyl acetate Isopropyl octanoate Methoxycitronellal Methyl caprate n-Nonyl acetate Octyl propionate Propyl octanoate 3,5,5-Trimethylhexyl acetate Undecanoic acid... 

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