Ex parte GUIDO STEFFAN - Page 2




          Appeal No. 94-3474                                                          
          Application 07/956,126                                                      


               The claims on appeal are directed to a process for the free-           
          radical chlorination or bromination of a methylaromatic compound.           
          Claim 1 is illustrative of the claimed subject matter:                      
                    1.   A process for the free-radical chlorination                  
               or bromination of a methylaromatic compound of the                     
               formula                                                                








                         in which                                                     
                          1      2                                                    
                         R  and R  independently of each other denote                 
               hydrogen, halogen, COHal or SOHal and                                  
                                             2                                        
                          3                                   2                     
                         R  denotes hydrogen or halogen, where R and                  
               R  together, if they are adjacent, can form the radical3                                                                     
               of a 5- or 6-membered isocyclic or heterocyclic ring,                  
               which can itself be monosubstituted or disubstituted by                
               halogen, COHal or SO Hal, where such heterocyclic rings                
                                   2                                                  
               contain 1 or 2 hetero atoms selected from the group                    
               comprising N, O and S,                                                 
                         to give a trichloromethyl aromatic compound                  
               or a tribromomethyl aromatic compound of the formula                   







                                          2                                           





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