Tetrahedron Letters p. 293 - 296 (1998)
Update date:2022-08-11
Topics:
Ookoshi, Tooru
Onaka, Makoto
Lactonization of 15-hydroxypentadecanoic acid to 15-pentadecanolide on dealuminated HY zeolite was successfully performed in a concentrated toluene solution (0.2 M). Addition of a bulky organic base to the reaction system suppressed the lactonization. It was concluded that the lactonization was promoted at specific acid sites on the external surface of the zeolite.
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