Process for making monomenthyl esters

Details Process for making monomenthyl esters Process for making monomenthyl esters

2007-07-24

2007-07-24

Richter, Johann (Department: 1621)

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

Organic compounds

Carboxylic acid esters

C560S188000

Reexamination Certificate

active

11363446

ABSTRACT:
A process for making monomenthyl esters of dicarboxylic acids is disclosed. Menthol reacts with a saturated, cyclic anhydride in the presence of a base catalyst under conditions effective to produce a mixture of mono- and bis-menthyl esters in which the molar ratio of mono- to bis-menthyl esters is enhanced compared with the ratio of esters produced in a similar uncatalyzed process.

REFERENCES:
patent: 3111127 (1963-11-01), Jarboe
patent: 5725865 (1998-03-01), Mane et al.
patent: 6884906 (2005-04-01), Dewis et al.
Takeshi Shimizu, Ryoichi Kobayashi, Hiromichi Ohmori, Tadashi Nakata□□Synthesis of Dicarboxylic Monoesters with Cyclic Anhydrides under High Pressure.□□SYNLETT, pp. 650-652, Jun. 1995.
Dr. Junzo Otera□□Esterification, 2003, pp. 91-123.□□Wiley-VCH Verlag GmbH & Co. KGaA.
Takeshi Shimizu, Ryoichi Kobayashi, Hiromichi Ohmori, Tadashi Nakata□□Synthesis of Dicarboxylic Monoesters with Cyclic Anhydrides under High Pressure.□□SYNLETT, pp. 650-652, Jun. 1995.
R. Smith et al.,Food Tech. 55(2001) 53.
H. Rule et al.,J. Chem. Soc.(1928) 1347.
T. Hilditch,J. Chem. Soc.(1909) 1570.
H. Jabloner et al.,J. Polym. Sci. A. 18(1980) 2933.
T. Shimizu et al.,Synlett(1995) 650.

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