Diquat insecticides

Diquat insecticides, 34 1-2 Direct exchange, 38 426 magnetic orbitals, 38 435 Directly bonded complexes, 21 202-207 Direct oxide reduction, in actinide metal preparation, 31 6-7, 21-22, 25 apparatus, 31 29... 

This technique has been used to determine the following types of organic compounds in soil polychlorobiphenyls, chlorinated insecticides, triazine herbicides, paraquat and diquat. 

Key products derived from pyridine (1) are the non-selective herbicides paraquat (5) and diquat (6) and the fungicide zinc pyrithione (7) used in a well-known fluh -dandruff shampoo. y5-Picoline (3) is a key precursor to vitamin B3 and both niacinamide (8) and niacin (9) are produced on the large scale (i.e. several thousand tons per year). The insecticide chloropyrifos (10) can be prepared from 6-picoline. 

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