- A new protocol for the synthesis of N(1)-unsubstituted 2-substituted 2 imidazolines
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Lateral metallation at C-2(α) of 1-tert-butoxycarbonyl-2-methyl-2- imidazoline followed by reaction with a range of C-electrophiles and deprotection with TFA reliably affords N(1)-unsubstituted 2-substituted 2- imidazolines; P- or Se-electrophiles lead to 2-alkenyl-2-imidazolines via Wadsworth-Emmons or selenoxide elimination protocols. (C) 2000 Elsevier Science Ltd.
- Jones, Raymond C. F.,Dimopoulos, Paschalis
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p. 2061 - 2074
(2007/10/03)
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- Imidazoline derivatives, salts thereof and their use as pesticides
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Imidazoline compounds of formula (I): STR1 wherein Ar is selected from a phenyl or a mono-, di- or tri-substituted phenyl radical in which the substituents are selected from alkyl, alkoxy, halogen, hydroxy, cyano, amino, trihalomethyl and nitro and in which any two adjacent carbon atoms of the phenyl ring may be joined by a carbon chain containing 3 or 4 carbon atoms; X1 is S, NR3 or NZ1 ; R1 and R2 are selected from hydrogen or alkyl; R3 is alkyl or aryl; m is 0 or 1; and Z1 and Z2 are a group SOn R9 or a group STR2 in which X2 is O, S or NR5 ; R4 is alkyl, aryl, alkoxy, aryloxy, amino or amido; R5 is alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, amino or amido; the alkyl or alkoxy radicals containing from 1 to 4 carbon atoms each; or an acid addition salt of the imidazoline compound. Methods of preparing the compounds are provided, as are pesticidal formulations containing them. The compounds are active against pests, especially arthropods of the Order Acarina.
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