Substituted 2-phenyl-3(2H)-pyridazinones

US6225313A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Schafer · Ottersheim, DE
• Gerhard Hamprecht · Weinheim, DE
• Markus Menges · Bensheim, DE
• Olaf Menke · Altleiningen, DE
• Michael Rack · Eppelheim, DE
• Robert Reinhard · Schifferstadt, DE
• Cyrill Zagar · Ludwigshafen, DE
• Peter Munster · Römerberg, DE
• Karl-Otto Westphalen · Speyer, DE
• Martina Otten · Ludwigshafen, DE
• Helmut Walter · Obrigheim, DE

Key dates

• Filing date: Mar 16, 2000
• Grant date: May 1, 2001
• Expiry date: Mar 16, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D237/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Substituted 2-phenyl-3(2H)-pyridazinones I ##STR1## and salts thereof, where PA0 n=0, 1, 2; R.sup.1 =C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl; PA0 R.sup.2 =H, halogen; R.sup.3 =halogen, CN; PA0 R.sup.4 =H, NO.sub.2, CN, CHO, NH--OH, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -halogenalkyl, --OR.sup.5, --CH.dbd.N--OR.sup.6, --CH.dbd.C(R.sup.7)--CO--OR.sup.8, --CO--OR.sup.9, C.sub.1 -C.sub.6 -alkyl-SO.sub.2 --NH, di(C.sub.1 -C.sub.6 -alkylsulfonyl)amino or ##STR2## PA0 R.sup.5 =C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl, (C.sub.1 -C.sub.6 -alkoxy)carbonyl-C.sub.1 -C.sub.4 -alkyl, (C.sub.3 -C.sub.6 -alkenyloxy)carbonyl-C.sub.1 -C.sub.4 -alkyl, (C.sub.3 -C.sub.6 -alkynyloxy)carbonyl-C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy(C.sub.1 -C.sub.4 -alkoxy)carbonyl-C.sub.1 -C.sub.4 -alkyl; PA0 R.sup.6 =H, C.sub.1 -C.sub.4 -alkyl, hydroxycarbonyl-C.sub.1 -C.sub.4 -alkyl, (C.sub.1 -C.sub.4 -alkoxy)carbonyl-C.sub.1 -C.sub.4 -alkyl; PA0 R.sup.7 =H, halogen, C.sub.1 -C.sub.4 -alkyl; R.sup.8 =H, C.sub.1 -C.sub.6 -alkyl; PA0 R.sup.9 =H, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 …