High molecular weight piperidine derivatives as UV stabilizers

Details High molecular weight piperidine derivatives as UV stabilizers High molecular weight piperidine derivatives as UV stabilizers

1980-07-24

1982-04-20

Bond, Robert T.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546223, 524103, C07D40108

Patent

active

043260632

ABSTRACT:
Process for the selective reductive alkylation of a cyclic diamine by catalytic condensation of the cyclic diamine with a hetercyclic ketone. In the process described herein, the reaction conditions and catalyst which are selected are directive for the synthesis of the N,N' substituted cyclic diamine. The compounds produced according to this procedure are readily isolated and are effective as UV stabilizers.

REFERENCES:
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patent: 4031095 (1977-06-01), Ramey et al.
patent: 4075165 (1978-02-01), Soma et al.
patent: 4190571 (1980-02-01), Lai et al.
patent: 4207228 (1980-06-01), Lai et al.
March "Advanced Organic Chemistry" (McGraw-Hill) (1968) pp. 668-670.
Pauling "General Chemistry" (Third Edition) (1970) (Freeman) pp. 408-409.

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