Regioselective Bromination of Fused Heterocyclic N-Oxides was written by Wengryniuk, Sarah E.;Weickgenannt, Andreas;Reiher, Christopher;Strotman, Neil A.;Chen, Ke;Eastgate, Martin D.;Baran, Phil S.. And the article was included in Organic Letters in 2013.Product Details of 394-67-2 This article mentions the following:
A mild method for the regioselective C2-bromination of fused azine N-oxides is presented, employing tosic anhydride as the activator and tetra-n-butylammonium bromide as the nucleophilic bromide source. The C2-brominated compounds, e.g. I [X = H, 4-OMe, 6-OMe, etc.], are produced in moderate to excellent yields and with excellent regioselectivity in most cases. The potential extension of this method to other halogens, effecting C2-chlorination with Ts2O/TBACl is also presented. Finally, this method could be incorporated into a viable one-pot oxidation/bromination process, using methyltrioxorhenium/urea hydropgen peroxide as the oxidant. In the experiment, the researchers used many compounds, for example, 4-Fluoroisoquinoline (cas: 394-67-2Product Details of 394-67-2).
4-Fluoroisoquinoline (cas: 394-67-2) belongs to isoquinoline derivatives. Isoquinoline is a structural isomer of quinoline, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. The Pomeranz–Fritsch reaction provides a method for the preparation of isoquinoline. This reaction uses a benzaldehyde and aminoacetoaldehyde diethyl acetal, which in an acid medium react to form isoquinoline.Product Details of 394-67-2
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem