Organic compounds

Details Organic compounds Organic compounds

2004-06-02

2009-12-15

O'Sullivan, Peter G (Department: 1621)

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

Organic compounds

Carboxylic acid esters

C514S506000, C514S529000

Reexamination Certificate

active

07632964

ABSTRACT:
Alkyl-2-enoic acid esters of formulawherein R1is C4, C5, or C6linear or branched alkyl, e.g. n-butyl, sec-butyl, tert-butyl, n-pentyl, 3-methyl-butyl, 2-methyl-butyl, 1-methyl-butyl. 1-ethyl-propyl, 1,2-dimethyl-propyl, 2-ethylbutyl; and R2and R3are independently hydrogen, methyl or ethyl, with the proviso that a maximum of one of R2and R3is hydrogen;with the proviso that if R2is hydrogen and R3is methyl, R1is not butyl or 1,3-dimethylbutyl, their manufacture and their use in flavor and fragrance compositions.

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