Concerning the Synthesis and the Dimroth Rearrangement of 4-(Dialkylamino)-2H-1,3,5-oxadiazine-2-thiones
The title compounds 3 are readily obtained by reaction of N,N-dialkylchloroformamidines 2 with potassium thiocyanate.The amidines 2 can be prepared profitably from isocyanide dichlorides 1 with the aid of N-(trimethylsilyl)dialkylamines.The thiones 3 behave very sensitively towards acids and are rearranged completely to 4-(dialkylamino)-2H-1,3,5-thiadiazin-2-ones 4 by treatment with acetic acid.
Spitzner, Roland,Andersch, Joerg,Schroth, Werner
p. 931 - 934
(2007/10/02)
4-(sec-Amino)-6-aryl-1,3,5-thiadiazin-2-one, ein Zugang aus 1,3,5-Oxadiaziniumsalzen
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Schroth, Werner,Kluge, Helmut,Spitzner, Roland
p. 132 - 133
(2007/10/02)
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