- Studies on reactions of Lawesson's reagent with phenylthiourea and oxamide
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Lawesson's reagent reacted with phenylthiourea in toluene at 110°C to give a product of ring-opening (2) instead of a 4-membered ring 2a. Its structure was determined by X-ray diffraction analysis. A mechanism is proposed to explain the formation of compound 2. The O-S exchange reaction of Lawesson's reagent with oxamide in acetonitrile was also investigated.
- He, Liang-Nian,Huang, Tian-Bao,Cai, Fei,Chen, Ru-Yu
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- COMPLEXES OF GROUP IIb METALS WITH DITHIOOXAMIDES V - VIBRATIONAL SPECTRA AND THERMAL ANALYSIS OF THE CdLX2 COMPLEXES
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In acid media, CdX2 forms non-electrolyte CdLX2 (L=DTO, NN'DMDTO, TMDTO; X=Cl, Br, I) complexes with dithiooxamides.The ligands act as bidentates with S,S coordination.A thorough vibrational analysis (i.r. and Raman) has been performed for the Cd(H2NCSCSNH2)X2 (X=Cl, Br, I), the Cd(CH3NHCSCSNHCH3)X2 (X=Br, I) and the CdX2 (X=Cl, Br, I) complexes, by NH/ND and CH3/CD3 isotopic substitution.Stereochemistries varying from tetrahedral to octahedral structures are proposed based on spectroscopic evidence and the positions of the metal-ligand vibrations can be explained in terms of the HSAB principle.The thermal behaviour of the complexes has been studied, using isothermal as well as non-isothermal techniques.
- Geboes, Peter,Plakatouras, John,Desseyn, Herman O.
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p. 821 - 832
(2007/10/02)
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- THE REACTION OF NITROACETAMIDES WITH THIONATION REAGENTS SYNTHESIS OF MONO- AND DITHIO- OXALIC ACID DIAMIDES
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Nitroacetamides, R1(R2)N.CO.CH2NO2, react with phosphorus sulphide (P4S10) or 2,4-bis(4-methoxyphenyl)-1,2-dithiadiphosphetane-2,4-disulphide, Lawesson's reagent, to give amidethioamides, R1(R2)N.CO.CS.NH2.
- Harris, Philip A.,Jackson, Arthur,Joule, John A.
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p. 3189 - 3192
(2007/10/02)
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