| abstract |
1. A method of converting a group> C = O (I) in a compound to a group> C = S (II) or into the tautomeric form of group (II) in a reaction giving a thionated reaction product using crystalline PS · 2CHN as a thionic reagent. 2. The method according to claim 1, wherein the thionic reagent and the compound interact with each other in a solvent medium for the compound and the thionic reagent. The method according to claim 2, wherein the liquid medium of the solvent comprises pyridine, C1-C3 alkyl nitrile, cyclic sulfone and / or C1-C3 dialkyl sulfone. The method according to claim 2, wherein the liquid medium of the solvent comprises pyridine, sulfolane, dimethyl sulfone and / or acetonitrile. The method according to claim 1, in which the reaction is carried out at a temperature of 60-180 ° C. The method according to claim 2, in which the reaction is carried out at a temperature of 60-180 ° C. The method according to claim 3, in which the reaction is carried out at a temperature of 60-180 ° C. The method according to claim 4, in which the reaction is carried out at a temperature of 60-180 ° C. The method according to claim 1, in which the reaction is carried out at a temperature of 115-175 ° C. The method according to any one of claims 1 to 9, in which the compound comprises a group (I), which is present as an amide functional group. The method according to any one of claims 1 to 9, in which the compound includes a group (I), which is present as a ketone functional group. The method according to any one of claims 1 to 9, in which the thionic reagent is used with a molar ratio to the reacting group (I) 1 mole PS · 2CHN per 1-4 moles of group (I) .13. The method according to claim 10, in which a thionic reagent is used with a molar ratio to the reacting group (I) of 1 mole PS · 2CHN per 1-4 moles of group (I). The method according to claim 11, in which the thionic reagent is used with a molar ratio to the reacting group (I) of 1 mole PS · 2CHN per 1-4 moles of group (I). The method according to any one of claims 1 to 9, |