The present relates to 1 - (Heterocycles carbonyl) - 2 - substituted pyrrolidines tiocarbonilo fungicides and its derivatives, their Preparation Process and Intermediates for their preparation, their use as fungicides, particularly in the form of compositions and Methods for the Control of phytopathogenic fungi of plants using these compounds or compositions.Claim 1: a compound of formula (1), in which t is o or s； x1 and x2, which may be the same or different, represent an atom of chlorine or Fluorine； n represents 0,1 or 2； Q1 represents a Link；； S； or so； SO2； b represents a phenyl Ring can be replaced with up to 5 x groups may be the same or different； a naphthyl Ring can be replaced with up to 7 x groups which may be identical or different, or a bicyclic Ring Condensed Do 4 -, 5 -, 6 -, 7 -, 8 -, 9 - or 10 - member, saturatedPartially saturated or unsaturated comprising 1 to 4 hetero Atoms selected from the list that consists of N, o, S,Can be replaced with up to 6 x groups may be the same or different； X represents a Halogen Atom； nitro； cyano； isonitrilo Hydroxy amino sulfanilo；；；； sulfanilo pentafluoro - L6 - formyloxy formylamino Formilo；；； (hydroxyimino) - alkyl substituted C1 - 8 without replacing (or alkoxy； C1 - 8 - imino) - alkyl - substituted or non substituted 8 C1； C2 alqueniloxi - 8 - 8 - imino alkyl substituted C1 or ifN Replace； alquiniloxi C2 - 8 - 8 - imino alkyl substituted or non substituted C1； benciloxiimino alkyl substituted or non substituted C1 - 8； carboxy； carbamoilo； n - alkyl hidroxicarbamoilo； carbamate； C1 - 8 or replaced without replacing； hal u00f3genoalquilo C1 - 8 is 1 to 5 alquenilo Halogen Atoms； C2 - 8 or replaced without replacing； hal u00f3genoalquenilo C2 8 which has 1 to 5 alquinil Halogen Atoms；Or - 8 replaced without replacing C2 or C2 - 8； hal u00f3genoalquinilo has 1 to 5 ATOMS, halogen, alkoxy substituted or non substituted C1 - 8 - 8； hal u00f3genoalcoxi C1 has 1 to 5 alkyl Halogen Atoms； C1 - 8 - sulfanilo replace
