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AC 508 AGROCHEMICALS FOR WEED MANAGEMENT                                                                            (3L+1P) II

Objective
  To teach classification, chemistry, synthesis and mode of action of different classes of herbicides, plant growth regulators.

Theory

UNIT I
  Preparation, properties, uses, structure-activity relationship and mode of action of phenoxy alkanoic acids, carbamates and substituted phenylureas.

UNIT II
  Preparation, properties, uses, structure-activity relationship and mode of  action of  triazines, pyridinium compounds and dinitroanilines.

UNIT III
  Preparation, properties, uses, structure-activity relationship and mode of action of sulfonylureas, imidazolinones and phenoxy-phenoxy propionicacid (fop) herbicides.

UNIT IV
  Herbicide safeners

UNIT V
  Synthetic plant growth regulators

Practicals
  Synthesis of 2,4-D. Its m.p, TLC, NMR, Preparation of nitrosomethyl urea, preparation of diazomethane and derivatization of 2,4-D, GC of methyl derivative, Introduction to Weeds: Field visit, synthesis of propionyl chloride and its distillation, TLC, NMR, synthesis of propanil, m.p, TLC, NMR, synthesis of maleic hydrazide, m.p, TLC, NMR, Educational Tour to some agrochemical factory/ laboratory.

Suggested Readings