NO! If you're going to be her friend first you will just become her bitch, she will use you to get favors and maybe go out or whatever but that's it. If you want to be her bf make that clear from the beginning, rarely does someone go from a good friend to bf.
In a serious relationship your partner is supposed to be your best friend.
Hey... Alot of people when they break up arent friends afterwards becasue they weren't friends before. Also, it is very likely that you will end up marrying someone in your circle of friends rather than someone else. And hey... I would rather be her friend than her boy friend. I'm not one of those sex crazed guys