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Synthese neuer 4-Hydroxybenzonitrilderivate und deren herbizide Eigenschaften (1987)

Schmidt, Hans-Werner

Springer

Monatshefte für Chemie 118 (1987), S. 217-228

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ISSN: 1434-4475

Keywords: Benzonitriles ; Halogenation ; Herbicides

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: 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.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00810055

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