The invention relates a new process for the preparation of bicyclic triazoles in which of general formula I
in which R is C1-C6-alkyl or Ci-C6-alkoxycarbonyl, which starts from the known 2-(4-chloro-2-fluorophenyl)-5,6,7,8-tetrahydro-1,2,4-triazolo[4,3-a]pyridin-3(2H)-one of formula II
via the new chlorosulphonyl compound of formula III
and via the new mercapto of general formula IV
本发明涉及一种制备双环三唑的新工艺,其中通式 I
其中 R 为 C1-C6- 烷基或 Ci-C6- 烷氧羰基,由已知的式 II 的 2-(4-
氯-2-
氟苯基)-5,6,7,8-四氢-
1,2,4-三唑并[4,3-a]
吡啶-3(2H)-酮开始
通过式 III 的新
氯磺酰化合物
并通过通式 IV 的新巯基化合物