How to turn on/off a converter using OpAmps
The window comparator circuit is the best for selecting a range of voltages, which requires another comparator, you may have to have to watch the impedance of the transistor stage, or provide a buffer as this circuit is more for a high impedance input as it has a pull up.  



Source: https://www.electronics-tutorials.ws/opamp/op-amp-comparator.html

Another way to do this would be to use diodes between the window comparator and the transistor.


Source: http://www.electronics-tutorial.net/analog-integrated-circuits/op-amp-comparators/window-comparator/index.html

With hysteresis the diode design might be better, however with a feedback resistor and a high impedance reference voltage this may prove difficult. Make sure you size the resistors of the feedback network to be higher impdeance than the voltage dividers so the reference voltage doesn't sag.