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[N-acylindoline with phytotoxic activity. II]

M Mazza, L Montanari, F Pavanetto

    Il Farmaco; Edizione Scientifica
    |January 1, 1977
    PubMed
    Summary
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    New N-acyl indoline derivatives were synthesized and tested for phytotoxic activity. Several compounds, particularly halogenated or alkylated N-methylcarbamoyl and N-dimethylcarbamoylindolines, demonstrated significant herbicidal efficacy against common weeds.

    Area of Science:

    • Agricultural Chemistry
    • Organic Synthesis
    • Plant Science

    Context:

    • Phytotoxicity is a critical factor in herbicide development.
    • Indoline derivatives represent a class of compounds with potential biological activity.
    • Developing novel herbicides is essential for sustainable agriculture and weed management.

    Purpose:

    • To synthesize and evaluate the phytotoxic potential of novel N-acyl indoline derivatives.
    • To identify specific structural features that enhance herbicidal activity.
    • To assess the efficacy of these compounds against a range of weed species.

    Summary:

    • A series of N-acyl indoline derivatives were synthesized via condensation reactions.
    • Biological testing involved pre- and post-emergence applications against common and agriculturally important weeds.

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  • Compounds featuring halogen or alkyl substituents on the indoline nucleus, specifically N-methylcarbamoyl and N-dimethylcarbamoyl derivatives, exhibited high phytotoxicity.
  • Compounds XVIII (5-chloro-N-(methylcarbamoyl)indoline), XIX (5-chloro-N-(dimethylcarbamoyl)indoline), and XXXIII (2-methyl-N-(methylcarbamoyl)indoline) showed the most potent pre- and post-emergence herbicidal activity.
  • Impact:

    • Identified potent herbicidal N-acyl indoline derivatives with broad-spectrum activity.
    • Highlights the structure-activity relationship for enhanced phytotoxicity in this chemical class.
    • Provides lead compounds for the development of new herbicides for agricultural applications.