Method of producing acetate derivative

Details Method of producing acetate derivative Method of producing acetate derivative

2006-07-18

2006-07-18

Richter, Johann (Department: 1621)

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

Organic compounds

Carboxylic acid esters

Reexamination Certificate

active

07078559

ABSTRACT:
The present invention relates to a method of producing an acetate derivative represented by the formula (II) by demonocarboxylating dimalonate represented by the formula (I), wherein water is supplied while the concentration of water in a demonocarboxylating reaction solution is controlled to 0.4% by weight or less to run demonocarboxylation:wherein n denotes an integer of 1 or 2, R1and R2represent H, a C1-8alkyl group or the like and R3represents a C1-3alkyl group.

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patent: 2004/0171886 (2004-09-01), Nishimura et al.
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patent: 9-183754 (1997-07-01), None
Perrard et al, Organic Letters (2000), 2(19), 2959-2962.

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