Mac Safari is my home browser, and syncs with my iphone. can i then als osync my work Safari? do i need itunes?
If you created an iCloud account on both your Mac and your iPhone, then Safari Bookmarks sync automatically over your Wi-Fi network. No need to sync using iTunes.
Did you follow the instructions here > Learn how to set up iCloud on all your devices.
can i sync PC safari with my Mac Safari?
You can setup iCloud to sync with your iPhone from your PC, but you can't sync from your Mac at the same time. Not both. See the instructions at the link above.