There is provided a safe and effective means of introducing an alkoxymethyl group onto the ring Nitrogen atom of a wide variety of pyrrole compounds via the reaction of the appropriate pyrrole precursor sequentially with dialkoxymethane, Vilsmeier reagent and a tertiary amine. The product 1-(alkoxymethyl)pyrroles are useful as insecticidal, acaricidal, nematocidal and molluscicidal agents.
Electrophilic Fluorination of a Highly Functionalized Pyrrole
作者:Keith D. Barnes、Yulin Hu、David A. Hunt
DOI:10.1080/00397919408010180
日期:1994.6
Bromine-lithium exchange of 3-bromo-1-(triisopropylsilyl) pyrrole 6 followed by treatment with N-fluorobenzenesulfonimide gave the fluoropyrrole 8. Application of this methodology to the highly functionalized pyrrole 1 afforded the fluoropyrrole 4, which was found to be inaccessible by other approaches.
Barnes Keith D., Hu Yulin, Hunt David A., Synth. Commun., 24 (1994) N 12, S 1749-1755
作者:Barnes Keith D., Hu Yulin, Hunt David A.
DOI:——
日期:——
Alkoxymethylation of pyrroles to produce pesticides