Do humans secrete and detect pheremones?
Yes, humans can secrete and sense pheromones, e.g. female tears dampen male sexual arousal.

Science 2011, 331(6014), 226-230

But then on the other hand, a key gene in mouse sex specific behavior (TRPC2) is a pseudogene, i.e. it is inactive, in humans.

Nature 2007, 448, 1009-1014

If you look at the references in those papers you will probably find a lot more examples.