Product Permalinks without the /

Ok, so i came across something that is bothering me for a few days and i couldn’t find any solution.

I’m working on a woocommerce store and i need to duplicate products to several categories. The permalink that most people uses is:

domain.com/base/productcategory/permalink

And this is what i want:

domain.com/base/productcategory-permalink

Yes i know i can do this manually but will take me a ton of time and i’m pron to error. No product have multiple categories so i see this achievable by some sort of function. Can you help me out? Thanks.