N-substituted 3,4,5,6-tetrahydrophthalimides and their intermediates

US5062884A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Plath · Bischofswerda, DE
• Karl Eicken · Monsheim, DE
• Norbert Goetz
• Jochen Wild · Ruppertsberg, DE
• Norbert Meyer · Langenburg, DE
• Bruno Wuerzer · Otterstadt, DE

Key dates

• Filing date: Jan 16, 1990
• Grant date: Nov 5, 1991
• Expiry date: Jan 16, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C255/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

N-substituted 3,4,5,6-tetrahydrophthalimides and their intermediates of the general formula I ##STR1## where A is --NO.sub.2, --NH.sub.2 or ##STR2## corresponding to the compounds Ia, Ib and Ic, B is --CH.sub.2 --, --CH.sub.2 --CHR.sup.1 --, --CH.sub.2 --CHR.sup.1 --CH.sub.2 --, --CH.dbd., --CH.dbd.CR.sup.1 -- or --CH.dbd.CR.sup.1 --CH.dbd., R.sup.1 being --H, --Cl, --Br or --CH.sub.3, D is ##STR3## depending on the terminal group B, X is --H, --Cl or --Br, Y is --H, C.sub.1 -C.sub.7 --alkyl, --Cl, --Br, --CN, --CONH.sub.2 --CO.sub.2 R.sup.2, where R.sup.2 is H, C.sub.1 -C.sub.6 -alkyl, C.sub.5 -- or C.sub.6 -cycloalkyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkylmercapto-C.sub.2 -C.sub.4 -alkyl, propargyl, benzyl, .alpha.-phenylethyl, .alpha.-phenylpropyl, C.sub.2 -C.sub.4 -alkyl which is monosubstituted, disubstituted or trisubstituted by F or Cl, or CH.sub.3 -substituted or Cl-substituted allyl, and Z is --COOR.sup.2, --CONR.sup.3 R.sup.4, ##STR4## where R.sup.3 and R.sup.4 are each H or C.sub.1 -C.sub.4 -alkyl or together form a 5-membered or 6-membered cycloaliphatic ring whose carbon chain may be interrupted by an oxygen atom.