Purification of 1-(2-amino-2-alkylpropyl)-3,3,5,5-tetraalkylpipe

Details Purification of 1-(2-amino-2-alkylpropyl)-3,3,5,5-tetraalkylpipe Purification of 1-(2-amino-2-alkylpropyl)-3,3,5,5-tetraalkylpipe

1984-12-03

1987-08-18

Hollrah, Glennon H.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544231, C07D24108

Patent

active

046878505

ABSTRACT:
Novel piperazinones having the formula ##STR1## are useful UV stabilizers and are purified by fractional distillation in the presence of an inorganic base.

REFERENCES:
patent: 4167512 (1979-09-01), Lai

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