Derivatives of 1-oxyl-4-hydroxy-2,2,6,6-tetramethylpiperidine

Details Derivatives of 1-oxyl-4-hydroxy-2,2,6,6-tetramethylpiperidine Derivatives of 1-oxyl-4-hydroxy-2,2,6,6-tetramethylpiperidine

1999-02-01

2000-06-27

Chang, Ceila

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546220, 546221, 546222, C07D21146

Patent

active

060808640

ABSTRACT:
Selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxypiperidine are surprisingly effective as inhibitors to prevent the premature polymerization of acrylic and methacrylic acids, their esters, their amides, vinyl acetate and acrylonitrile in the presence of water. Some of these derivatives are new compounds.

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