1,3-DIIODOHYDANTOIN COMPOUND AND PROCESS FOR PRODUCTION THEREOF

WIPO Patent Application WO/2007/026766

A1

Disclosed is a means for preventing the release of I2 during the production or storage of a 1,3-diiodohydantoin compound to thereby prevent the reduction in purity of the compound or overcome various disadvantages caused by I2. A process for producing a 1,3-diiodohydantoin compound comprising the steps of providing a wet material containing the 1,3-diiodohydantoin compound, and (1) contacting the wet material with a heated air to dry the wet material or (2) lyophilizing the wet material; a method for storage of a 1,3-diiodohydantoin compound comprising the step of storing the 1,3-diiodohydantoin compound under the temperature condition of 15˚C or lower; and a 1,3-diiodohydantoin compound having a free I2 content of 1% by mass of less.

INOUE KAZUHISA (JP)
HANAMURA YUKIHIKO (JP)
MIYAZAWA TAKAAKI (JP)

PCT/JP2006/317113

March 08, 2007

August 30, 2006

Click for automatic bibliography generation  

NIPPOH CHEMICALS (JP)
INOUE KAZUHISA (JP)
HANAMURA YUKIHIKO (JP)
MIYAZAWA TAKAAKI (JP)

C07D233/82

JP2002030072A	2002-01-29
JPH09316057A	1997-12-09
JP2002030072A	2002-01-29
JP2005025557A	2005-01-27

See also references of EP 1939184A4
J. ORG. CHEM., vol. 30, 1965, pages 1101 - 1104
J. LABELLED COMPD. RADIOPHARM., vol. 44-12, 2001, pages 815 - 830
"First method: Method by heating drying under atmospheric pressure", JIS-K0067, vol. 4.1.4, no. 1, 1992

HATTA, Mikio et al. (11-9 Nibanch, Chiyoda-ku Tokyo 84, JP)

View/Download PDF      PDF Help

Previous Patent: MULTILAYERED INFORMATION RECORDING MEDIUM AND PROCESS FOR PRODUCING SAID MULTILAYERED INFORMATION RE...

Next Patent: LIGHT-EMITTING ELEMENT AND METHOD FOR FABRICATING SAME