The Bolton fighter has stepped up in weight class as he looks to gain another world title.
"We are looking at December 7 for my next fight and looking at opponents," Khan told reporters.
"I have tried to get Devon Alexander. It was looking promising. He said he wanted to fight at the start and now it slowly seems that he is not 100% sure about it, coming up with excuses.
"Even if it's not in Dubai, I will fight in America, I will fight him anywhere."
Khan also said that his ultimate goal is to fight pound-for-pound king Floyd Mayweather some time next year.