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:
Feb. 22, 1977
Filed:
Jun. 16, 1975
Nicolae S Bodor, Lawrence, KS (US);
James J Kaminski, Lawrence, KS (US);
Interx Research Corporation, Lawrence, KS (US);
Abstract
There is provided a brominating and oxidizing agent of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which may be the same or different, represents a member selected from the group consisting of a hydrogen atom, a C.sub.1 -C.sub.22 straight or branched alkyl group, a phenyl group, and a substituted phenyl group whose substituents are selected from the group consisting of a methoxy group, a nitro group, a cyano group, a halogen atom (Br, Cl, I), a C.sub.1 -C.sub.2 dialkylamino group, a C.sub.1 -C.sub.2 dialkylaminomethyl group, a C.sub.1 -C.sub.2 dialkylaminoethyl group, a C.sub.1 -C.sub.2 dialkylammoniummethyl group, a C.sub.1 -C.sub.2 dialkylammoniumethyl group, a C.sub.1 -C.sub.2 trialkylammoniummethyl group, a C.sub.1 -C.sub.2 trialkylammoniumethyl group, a COOR.sub.5 group, and a CON(R.sub.5).sub.2 group, wherein R.sub.5 represents a C.sub.1 -C.sub.8 straight or branched alkyl group. The compounds falling within formula (I) find wide application as brominating and oxidizing agents in a number of organic reactions in which the prior art compound, N-bromosuccinimide has been employed to date. In comparison to N-bromosuccinimide, the compounds of the instant invention are characterized as being extremely stable to degradation and less polar with respect to their N-Br bond than N-bromosuccinimide such that promotion of 'radical' bromine release is achieved with minimal positive bromine release.