DERIVATIVES OF PIPERIDINE Russian patent published in 1996 - IPC

FIELD: production of polymers. SUBSTANCE: desired products have formula 1 where n= 1 or 2; (if n=1, E is C₁-C₈-alkyl, cyclohexyl or α-methyl benzyl); X is OH, N(R₁)(R₂), OCH₂CH-CH₂OH, OCH₂CH₂CH₂OH or OOCCH₂CH₂COOH or formula 2 . In the latter formula Y is -CH₂-CH(OH)CH₂- or -CH₂-CH(OH)CH₂-; E is as mentioned above; X is H or X and X′ represent together -O-CH₂-C(CH₃)(CH₂OH)-CH₂-O-,; R₁ is H, -CO-CO-NHCH₂CH₂OH or -COCH₂CH₂COOH. R₂ is H or C₁-C₄-alkyl. If n=2, then E is C₁-C₈-alkylene or 1,4-cyclohexylene, X is OH, X′ is H. 4-benzoyloxy-1-oxyl-2,2,6,6-tetramethyl piperidine is used as reagent 1. Peroxide of di-tert-butyl is used as reagent 2. Reaction is carried out at 145-150 C in the medium of chlorobenzene. EFFECT: improves quality of desired product. 5 tbl