54930-66-4Relevant academic research and scientific papers
2,4-Bis(4-methylphenylthio)-1,3,2λ5,4λ5-dithiadiphosphetane-2,4-dithione: A New Reagent for Thiation of N,N-Disubstituted Amides
Wipf, Peter,Jenny, Christjohannes,Heimgartner, Heinz
, p. 1001 - 1011 (2007/10/02)
As a new reagent for the thiation of amides, the easily accessible 2,4-bis(4-methylphenylthio)-1,3,2λ5,4λ5-dithiadiphosphetane-2,4-dithione (9) shows a remarkable selectivity.This selectivity - the preferred thiation of N,N-disubstituted amides - is complementary to the one of the well known Lawesson reagent.Thiation of diamides of type 2 with 9 leads via cyclization of the corresponding dithiodiamides directly to 1,3-thiazole-5(4H)-thiones 1.
Selektive Umfunktionalisierung der terminalen Amidgruppe offenkettiger Polyamide via 2-Oxazolin-5-one als Zwischenstufen
Obrecht, Daniel,Heimgartner, Heinz
, p. 482 - 487 (2007/10/02)
Treatment of aqueous or alcoholic solutions of diamides of type 2 with HCl leads to the formation of amide-acids and amide-esters of type 3 (Scheme 1 and Table).It has been shown, that 2-oxazolin-5-ones of type 4 are intermediates of this selective transf
