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| The oxidative dimerization of thioamides to form 3,5-disubstituted 1,2,4-thiadiazole has been reported using stoichiometric IBX/TEAB and polymer-supported (diacetoxyiodo)benzene.22 The utilization of (diacetoxyiodo)benzene on polymeric support leads to concerns about the steric accessibility and the insolubility of the reagent in most organic solvents. |
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| 使用化學(xué)計(jì)量的IBX/ TEAB和聚合物負(fù)載的(二乙酰氧基碘)苯 通過(guò)硫代酰胺的氧化縮合反應(yīng)形成3,5 - 二代的1,2,4 - 噻二唑已見(jiàn)報(bào)道 。22這種(二乙酰氧基碘)苯在聚合性支持物的應(yīng)用引起了對(duì)空間位阻和試劑在大多數(shù)有機(jī)溶劑中不溶解的擔(dān)憂。 |

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