Is it permissible for a man to insist that his wife register in his name a separate dwelling that her brother gifted to her?

It is not permissible for the husband to take his wife's money without her willing consent. If he does so, he is an aggressor and an oppressor, and the wife is not obligated to give him what he requests. The wife should deal with her husband wisely and gently to avoid conflict and seek help from people of goodness and wisdom.