title: Thiobarbital
text: # Thiobarbital
  
  Thiobarbital is a drug which is a barbiturate derivative. It is the thiobarbiturate analogue of barbital.
  
  ## Synthesis
  
  It is of note that although the drug can be prepared by the above route (cf e.g. thialbarbital), reaction of barbital with phosphorus pentasulfide constitutes an alternative route to thiobarbital.
  
  