74632-70-5Relevant academic research and scientific papers
Reduction of β-Lactams,III. Synthesis of β-Thiolactams and Reduction with Raney Nickel
Verkoyen, Carl,Rademacher, Paul
, p. 653 - 660 (2007/10/02)
The N-substituted β-lactams 1-3 react with P2S5 or Lawesson reagent (11) to give the β-thiolactams 5-7.The bi-β-lactam 4 is transformed by 11 to the bi-β-thiolactam 8, with P2S5 however rearrangement occurs to the bicyclic thiohydrazide 10. - Reduction wi
STUDIES ON ORGANOPHOSPHORUS COMPOUNDS XLVII PREPARATION OF THIATED SYNTHONS OF AMIDES, LACTAMS AND IMIDES BY USE OF SOME NEW P,S-CONTAINING REAGENTS
Yde, B.,Yousif, N. M.,Pedersen, U.,Thomsen, I.,Lawesson, S. -O.
, p. 2047 - 2052 (2007/10/02)
The thionation properties of 2,4-bismethylthio-1,3,2,4-dithiadiphosphetane 2,4-disulfide, 1, 2,4-bis(4-phenoxyphenyl)-1,3,2,4-dithiaphosphetane 2,4-disulfide, 2, 2,4-bis(4-phenylthiophenyl)-1,3,2,4-dithiaphosphetane 2,4-disulfide, 3, and 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiaphosphetane 2,4-disulfide (LR), 4, have been investigated on a series of amides, lactams and imides.The most remarkable feature is that 2, 3 and 4 thionate most amides and lactams in THF at room temperature (reaction time 5 min) to give the corresponding thionated compounds.Imides are easily thionated by 2, 3 and 4 in DME at 60 oC.The reactions of 1 with amides, imides and most lactams are run at 60 oC to give good yields of the corresponding thionated compounds.
