Process for the interconversion of two separate crystal forms of a herbicidal pyridine sulfonamide

摘要

PCT No. PCT/US89/05052 Sec. 371 Date May 8, 1991 Sec. 102(e) Date May 8, 1991 PCT Filed Nov. 17, 1989.This invention relates to the interconversion of separate crustal forms of(aminosulfonyl)-pyridinecarboxamides. The compounds of this invention and their agriculturally suitable salts are useful as agricultural chemicals, and in particular, as herbicides which may be selective to corn.