where的特殊用法?

这里的where引导定语从句.
相当于He succeeded in things that other people failed.
where还能引导条件状语从句,相当于if
比如 where there is will,there is a way.那么请问这里把where 替换成as 表让步条件可以吗He succeeded as other people failed.从意思上来看是有转折的意思， 但是这里的as还是相当于when或者while，所以说表示让步条件有些牵强。