Uses
Primisulfuron-methyl is a fungicide used in pesticides for weed control.
Uses
Primisulfuron-methyl is Herbicide.
Production Methods
The commercial production of primisulfuron-methyl involves a multi-step synthesis starting with methyl 2-chlorosulfonylbenzoate and 2-amino-4,6-bis(difluoromethoxy)pyrimidine. The process typically follows a Schotten–Baumann-type reaction, where the sulfonyl chloride reacts with the pyrimidine derivative to form a sulfonamide intermediate. This is then further reacted with isocyanate or carbamoyl chloride derivatives to introduce the sulfonylurea linkage, forming the final herbicidal compound. The synthesis is carried out under controlled conditions to ensure high purity and yield, followed by purification steps such as crystallisation.
Hazard
Moderately toxic by skin contact. Low toxicity
by ingestion.
Agricultural Uses
Herbicide: A broad-spectrum herbicide. Actively registered for use in the U.S. Not approved for use in EU countries. There are 14 global suppliers.
Trade name
BEACON®; CGA 136,872®; EXCEED®; NORTHSTAR®; RIFLE®[C]; SPIRIT®; TELL®
Mechanism of action
Selective, systemic, absorbed through roots and foliage. Inhibits plant amino acid synthesis - acetohydroxyacid synthase AHAS
