| abstract |
-S-CH(-Z)-CH(-X)-CO-NH-Y X AND Z ARE INDIVIDUALLY HYDROGEN OR A LOWER ALKYL GROUP, AND Y IS AS DEFINED ABOVE, AND WHEREIN THE HALOGENATING AGENT IS PRESENT TO THE EXTENT OF AT LEAST TWO MOLE EQUIVALENTS WHEN Q IS HYDROGEN OR TO THE EXTENT OF AT LEAST THREE MOLE EQUIVALENTS WHEN Q IS -S-CH(-Z)-CH(-X)-CO-NH-Y WHEREIN Q IS HYDROGEN OR Q-S-CH(-Z)-CH(-X)-CO-NH-Y R AND R1 MAY BE HYDROGEN, HALOGEN, OR A LOWER ALKYL GROUP AND RII MAY BE AN ALKYL GROUP OF 1 TO 18 CARBON ATOMS, WHICH COMPRISES CONTACTING A HAOGENATING AGENT SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, SULFURYL CHLORIDE, SULFURYL BROMIDE, N-CHLOROSUCCINIMIDE, AND N-BROMOSUCCINIMIDE WITH A COMPOUND OF THE FORMULA -CO-NH-RII WHEREIN Y IS HYDROGEN AN ALKYL GROUP OF 1 TO 18 CARBON ATOMS, AN ARALKYL GROUP OF UP TO 10 CARBON ATOMS, AN ARYL GROUP OF UP TO 10 CARBON ATOMS, A HALOGEN-, (C1-C4) ALKYL- OR (C2-C4)ALKOXY-SUBSTITUTED ARYL GROUP A DIALKYLAMINOALKYL GROUP OF UP TO 8 CARBON ATOMS, AN ALKOXYALKYL GROUP OF UP TO 8 CARBON ATOMS, AND ARYLOXYALKYL GROUP OF UP TO 12 CARBON ATOMS, OR A CARBAMOYL GROUP OF THE FORMULA 2-Y,3-(O=),4-R,5-R1-ISOTHIAZOLIDINE 1. A PROCESS FOR PREPARING ISOTHIAZOLONES OF THE FORMULA |