Patent ID: 6242613
Filing Date: 2001-06-05
Classification: A01N,C07D

Abstract:
A stable arylpyrrole particle comprising an arylpyrrole which can exist as one or two different polymorphs, at least one of which is particle size stable during storage, wherein the ratio of stable polymorph to unstable polymorph in said particle is greater than about 1:4, said arylpyrrole being represented by the formula ##STR3##whereinX is H, F, Cl, Br, I, C.sub.1 -C.sub.4 haloalkyl or S(O).sub.m (C.sub.1 -C.sub.4 haloalkyl);Y is F, Cl, Br, I, C.sub.1 -C.sub.4 haloalkyl or CN;W is CN or NO.sub.2 ;A is C.sub.1 -C.sub.4 alkyl optionally substituted withone to three halogen atoms,one cyano,one hydroxy,one C.sub.1 -C.sub.4 alkoxy,one C.sub.1 -C.sub.4 alkylthio,one phenyl optionally substituted withC.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, orone to three halogen atoms,one phenoxy optionally substituted withone to three halogen atoms, orone benzyloxy optionally substituted withone halogen atom,C.sub.1 -C.sub.4 carbalkoxymethyl,C.sub.3 -C.sub.4 alkenyl optionally substituted with one to three halogen atoms,cyano,C.sub.3 -C.sub.4 alkynyl optionally substituted with one halogen atom,di-(C.sub.1 -C.sub.4 alkyl)aminocarbonyl, orbenzoyl optionally substituted with one to three halogen atoms or one to three C.sub.1 -C.sub.4 alkyl groups;L is H, F, Cl or Br;M and R are each independently H, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.1 -C.sub.3 alkylsulfinyl, C.sub.1 -C.sub.3 alkylsulfonyl, cyano, F, Cl, Br, I, nitro, C.sub.1 -C.sub.3 haloalkyl, R.sub.1 CF.sub.2 Z, R.sub.2 CO or NR.sub.3 R.sub.4, or when M and R are on adjacent positions and taken with the carbon atoms to which they are attached they may form a ring in which MR represents the structure:--OCH.sub.2 O--, --OCF.sub.2 O--, --OCR.sub.6 R.sub.7 CR.sub.8 R.sub.9 O--,--OCH.sub.2 CH.sub.2 --, --OCH.sub.2 CH.sub.2 CH.sub.2 -- or --CH.dbd.CH--CH.dbd.CH--;Z is S(O)n or O;R.sub.1 is H, F, CHF.sub.2, CHFCl or CF.sub.3 ;R.sub.2 is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy or NR.sub.3 R.sub.4 ;R.sub.3 is H or C.sub.1 -C.sub.3 alkyl;R.sub.4 is H, C.sub.1 -C.sub.3 alkyl or R.sub.5 CO;R.sub.5 is H or C.sub.1 -C.sub.3 alkyl;R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are each independently hydrogen, halogen or C.sub.1 -C.sub.3 alkyl; andm and n are each independently an integer of 0, 1 or 2.