Abstract
The synthesis of several new derivatives of 2-amino-4-hydroxybenzonitrile2 and their herbicidal screening data are described. Thus, halogenation and furtherSandmeyer-Reaction of2 leads to the 2,3,5-trihalogenated derivatives5 a–e. Reaction of ethyl chloroformate with the amino group of2 gives6 a, acylation7 a, b and8. The 3,5-dihalogenated compounds10 a–e are obtained from6 a and7 a, b by bromination or iodation. The hydroxyl group of6 a, 7 a, b and10 a, c, e reacts with N,N-disubstituted carbamyl chlorides to give6 c, d, 9 a, b, 11, 12 and13 a, b.
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Schmidt, HW. Synthese neuer 4-Hydroxybenzonitrilderivate und deren herbizide Eigenschaften. Monatsh Chem 118, 217–228 (1987). https://doi.org/10.1007/BF00810055
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DOI: https://doi.org/10.1007/BF00810055