forma cristalina i, composto, processo para a preparação da forma cristalina i, agente de proteção de palntas, e, processo para o combate de crescimento de plantas indesejado

摘要

The present invention relates to crystalline forms of [3-(4,5-dihydro-3-isoxazolyl)-2- methyl-4-(methylsulfonyl)phenyl]-(5-hydroxy-1-methyl-1 H-pyrazol-4-yl)methanone, which is also known under the common name topramezone. The invention also relates to a process for the preparation of these crystalline forms and formulations for plant protection which comprise one of these crystalline forms of topramezone.