Set up a secondary domain name for a page in wordpress

recently, in response to the company"s need, the company has set up a website on paper publication using wordpress3.9. The URL:
has a page in the whole site because of the nature of its service. Page URL:, so I want to bind a secondary domain name to this page, because this page needs to be independent when apache binds a secondary domain name, but now this page is just a page in the whole wordpress. Cannot be placed under a folder independently, how to bind this second-level domain name?

reconfigure a vhost