Disable single product pages

Hello,
I was wondering if there is a way to disable the single produc pages, so that I only have the shop page with all my products. I found this code

remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_product_link_close', 5 );

which removes the link to the single product pages, but they are still visible when you manually type in …/product/myproduct

Thank you.