Conjugated hydrohalogenation, also known as hydrohalogenation of dienes, or 1,2 vs. 1,4 addition to dienes, is the same reaction as hydrohalogenation, except with a possibility of multiple products due to the presence of a conjugated intermediate.
Concept #1: Conjugated Hydrohalogenation - General Mechanism
Example #1: 1,2 vs. 1,4 products
Example #2: 1,2 vs. 1,4 products
Concept #2: Kinetic vs. Thermodynamic Control