Polymerizable adamantane derivatives and process for producing the same
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United States of America Patent
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May 22, 2001
Grant Date -
N/A
app pub date -
Jan 11, 1999
filing date -
May 23, 1997
priority date (Note) -
Expired
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Abstract
A compound shown by the following formula: ##STR1## wherein each of R.sup.1a, R.sup.2a, R.sup.3a and R.sup.4a represents a substituent selected from a non-reactive atom, a non-reactive group, a hydroxyl group and an amino group, and at least two members selected from R.sup.1a, R.sup.2a, R.sup.3a and R.sup.4a are a hydroxyl group, a carboxyl group or an amino group; is subjected to an esterification reaction or an amidation reaction with a polymerizable unsaturated compound (e.g., an alcohol, a carboxylic acid, an amine) in the presence of a catalyst comprising an element selected from the Group 3 elements, such as a samarium compound, to obtain a polymerizable adamantane derivative having at least one polymerizable unsaturated group in high yield.
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