The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2005
Filed:
Sep. 21, 2001
Woon Phil Baik, Yongin-city, Kyunggi-do, 449-030, KR;
Jung Min Kim, Nowon-gu, Seoul, 139-221, KR;
Young Sam Kim, Seoul, 158-096, KR;
Cheol Hun Yoon, Youngin-city, Kyunggi-do, 449-830, KR;
Shin Jong Kim, Seoul, 156-072, KR;
Seok Woo Lee, Uiwang-city, Kyunggi-do, 437-080, KR;
Woon Phil Baik, Yongin-city, Kyunggi-do, 449-030, KR;
Jung Min Kim, Nowon-gu, Seoul, 139-221, KR;
Young Sam Kim, Seoul, 158-096, KR;
Cheol Hun Yoon, Youngin-city, Kyunggi-do, 449-830, KR;
Shin Jong Kim, Seoul, 156-072, KR;
Seok Woo Lee, Uiwang-city, Kyunggi-do, 437-080, KR;
Other;
Abstract
The present invention provides a process for preparing an aromatic bromide or aromatic iodide from an aromatic amine derivative using nitrite anion and halodimethylsulfonium halide generated in situ from hydrobromic acid/DMSO or hydriodic acid/DMSO. The process for producing compounds of the formula (1) is disclosed (1) wherein X is bromine or iodine: Y is carbon or nitrogen; R, R, R, Rand Rwhich may be the same or different and are selected independently from the group consisting of a hydrogen, a hologen, a C-Calkyl, a C-Calkoxy, a nitro, a formyl, an aryl, a benzyl, a C-Calkylcarbonyl and an arylcarbonyl, provided that adjacent groups as selected from R, R, R, Rand Rmay combine to form a ring.