"iphone is disabled connect to itunes" but phone is not being recognnized by mac book?

Forget Passcode or Restore Device

If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple

How to erase your iOS device & then set it up as a new device or restore it from backups

If the above doesn’t work for you, then:

Follow these steps to place your iOS device into recovery mode: iPhone DFU mode explained, and how to enter DFU mode on your device.

If all fails then make an appointment at the Apple Genius Bar for service. If you need to find an Apple Store - Find a Store - Apple. If you did not purchase it from Apple then you will need to look to the vendor for service.

Follow these instructions-->If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support