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The recyclization of (2-aminophenyl)bis(5-tert-butyl-2-furyl)methane derivatives has been studied. It was shown that the acid-catalyzed recyclization of N-tosylamides leads to the formation of 2-(3-oxoalkyl)-3-(2-furyl)indoles. In contrast, under the same reaction conditions, acetamides are transformed into indoles containing three keto groups. The acid-catalyzed removal of the acetyl group from these...
Treatment of 3-chloro-1-pentafluorosulfanylprop-1-ene 1 with KCN yielded the product of prototropic rearrangement ClCHCHCH 2 SF 5 , whereas reactions with NaN 3 and KSCN gave the S N 2 products. Ab initio calculations at MP2/6-311++G** level are used to explain the unusual behaviour of cyanide. It was found that proton transfers from both 1 to CN − and from...
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