Bromination of Mono- and Bisammonium Salts with a 4-Penten-2-ynyl Side Group

Reaction of bromine with 1,4-bisammonium salts containing, along with a 2-chlorobutenylene common fragment, 4-penten-2-ynyl side groups, as well as of monoammonim salts containing the same side group and a 4-bromo-3-chlorobutenyl group, involve addition of two bromine molecules at each of the side groups, while the double bond of the chlorobutenyl group remains intact.