[chemical substances]
Count: 378c;28s
   reactive intermediates
  Count: 74c;14s
     Class dipolar compounds
    Count: 20c;1s
       Class 1,3-dipolar compounds
      Count: 13c;1s
         Class Propargyl type 1,3-dipolar compounds [X≡N+-Z <-> X-=+N=Z <-> X-=NZ+ <-> XN=Z (X=C,O; Z=C,N,O)]
        Count: 3c;1s
           Class azides [RN=N+=-N]
          Count: -