Process for making tricyclodecenyl esters

Details Process for making tricyclodecenyl esters Process for making tricyclodecenyl esters

2007-06-05

2008-11-04

Zucker, Paul A (Department: 1621)

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

Organic compounds

Carboxylic acid esters

Reexamination Certificate

active

07446221

ABSTRACT:
A practical, economical process for making tricyclodecenyl esters is disclosed. After reacting a lower carboxylic acid and a dicyclopentadiene in the presence of triflic acid to form the ester, the reaction mixture is distilled in the presence of a base to isolate a fragrance-quality tricyclodecenyl ester. Adding enough base to neutralize the triflic acid enables a distillation-only purification, facilitates starting material recovery, and avoids drawbacks of a basic workup.

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