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Synthesis and pesticidal activity of phenazines II. —Alkyl, alkoxy, alkylthio and alkylsulphonyl phenazines
Author(s) -
Cross B.,
Dunn C. L.,
Payne D. H.,
Tipton J. D.
Publication year - 1969
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740200605
Subject(s) - alkyl , alkoxy group , phytotoxicity , chemistry , fungicide , organic chemistry , biology , botany
The synthesis of forty‐one phenazines, mono‐substituted with alkyl, alkoxy, alkylthio and alkylsulphonyl groups is described. Phytotoxicity was highest in the alkyl series and both 1‐ and 2‐methylphenazines are highly effective. herbicides. Although several n‐alkyl, branched alkyl and n‐alkoxyphenazines were highly fungicidal and acaricidal, only 2‐t‐octylphenazine combined high dual activity with negligible phytotoxicity.