Process for preparing a 2,2,6,6-tetraalkyl-4-piperidyl spiro ali

Details Process for preparing a 2,2,6,6-tetraalkyl-4-piperidyl spiro ali Process for preparing a 2,2,6,6-tetraalkyl-4-piperidyl spiro ali

1980-08-05

1982-04-06

Bond, Robert T.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D49113

Patent

active

043236847

ABSTRACT:
A process is provided for the preparation of a 2,2,6,6-Tetraalkyl-4-piperidyl spiro aliphatic ether represented by the formula ##STR1## in which R.sub.1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R.sub.2 is a hydrogen atom, or a methyl, ethyl, or hydroxymethyl group, n is zero or one, R.sub.3 is a group represented by a formula ##STR2## and R.sub.4 is a hydrogen atom or an alkyl group, by the reaction of a 2,2,6,6-tetraalkyl-4-piperidone compound represented by the formula ##STR3## or an acid addition salt thereof with an oxybis (alkanediol) compound represented by the formula ##STR4##

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