Results 111 to 120 of about 41,140 (322)

Insertion of arynes into thioureas: A new amidine synthesis [PDF]

, 2011
Arynes, generated from trimethylsilyl phenyltriflate precursors, have been found to react with thioureas via a formal π-insertion into the C=S bond. The reaction contrasts with that of ureas, which proceeds via benzyne σ-insertion into the C-N bond, and ...
Greaney, Michael F., Biswas, Kallolmay, Kallolmay Biswas, Michael F. Greaney   +3 more
core   +1 more source

Synthesis, Characterization and Cytotoxicity Evaluation of New Biimidazole Palladium(II) Complexes with Thioureas

Acta Chimica Slovenica, 2018
The reactions between [PdCl2(tmbiimH2)]·H2O (1) {tmbiimH2 = 2,2'-bis(4,5-dimethylimidazole)} and thiourea (tu), N-methylthiourea (mtu), N-phenylthiourea (ptu), N,N’-dimethylthiourea (dmtu) or N,N’-diphenylthiourea (dptu) in the 1:2 molar ratio resulted ...
Silmar José Spinardi Franchi, Rodrigo Alves de Souza, Antonio Eduardo Mauro, Iracilda Zeppone Carlos, Livia Carolina de Abreu Ribeiro, Fillipe Vieira Rocha, Adelino Vieira de Godoy-Netto   +6 more
doaj   +1 more source

HPLC purification technique: synthesis of unsymmetrical thiobarbituric acids

Heliyon, 2019
Synthesis of thiobarbituric acids by the reaction of 1,3-disubstituted thioureas and malonic acid in acetyl chloride-acetic acid medium and synthesis of cyclized pyrimidin-7-one by the interaction of 1-(2-hydroxyethyl)-aryl thioureas, with malonic acid ...
Vinod D. Deotale, Manish M. Katiya, Madhukar G. Dhonde   +2 more
doaj   +1 more source

The Conversion of Ammonium Thiocyanate into Thiourea and of Thiourea into Thiocyanate [PDF]

The Journal of Physical Chemistry, 1898
n ...
openaire   +1 more source

CONDENSATION PRODUCTS OF BENZYLIDENE-ACETONE WITH SUBSTITUTED THIOUREAS [PDF]

, 1956
Several 2- arylamino -4-styryl-thiazoIes, prepared by condensation of benzylidene-acetone with substi­tuted thioureas, and their mercurated products have been described.
M. K. ROUT
core   +1 more source

Synthesis and spectral characteristics of N-(1-([1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-ylamino)-2,2,2-trichloroethyl)carboxamides

Heterocyclic Communications, 2019
Based on readily available N-(2,2,2-trichloro-1-hydroxyethyl)carboxamides, N-(2,2,2-trichloro-1-(3-(3-mercapto-4H-1,2,4-triazol-4-yl)thioureido)ethyl) carboxamides, dehydrosulfurization–under the influence of excess HgO–led to the formation of N-(1-([1,2,
Zadorozhnii Pavlo V., Pokotylo Ihor O., Kiselev Vadym V., Kharchenko Aleksandr V., Okhtina Oxana V.   +4 more
doaj   +1 more source

Construction of highly enantioenriched spirocyclopentaneoxindoles containing four consecutive stereocenters via thiourea-catalyzed asymmetric Michael–Henry cascade reactions

Beilstein Journal of Organic Chemistry, 2017
The thiourea-catalyzed asymmetric synthesis of highly enantioenriched spirocyclopentaneoxindoles containing chiral amide functional groups using simple 3-substituted oxindoles and nitrovinylacetamide as starting materials was achieved successfully.
Yonglei Du, Jian Li, Kerong Chen, Chenglin Wu, Yu Zhou, Hong Liu   +5 more
doaj   +1 more source

Synthesis and Antiviral Bioactivity of Chiral Thioureas Containing Leucine and Phosphonate Moieties

Molecules, 2010
A series of novel chiral thioureas 3a-n bearing leucine and phosphonate moieties were synthesized in excellent yields. The structures of the compounds were completely characterized by elemental analysis, IR, 1H-, 13C-, 31P- and 19F-NMR spectral data.
Jian Wu, Zhencao Wang, Weiming Xu, Pinaki Bhadury, Huitao Fan, Xiangyang Li, Song Yang, Jingzi Liu   +7 more
doaj   +1 more source

SYNTHESIS AND BIOLOGIC PROPERTIES OF SOME 1-(ALCHYL)PHENYL-3-(4-(3-(PYRIDIN-2-IL)ACRYLOYL)PHENYLTHIOUREA [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2013
This paper describe the synthesis of some 1-(alchyl)aril-3-(4-(3-pyridin-2-il) acryloyl)phenylthiourea obtained by condensation of 2-pyridincarboxaldehide with some derivatives of 4-acetylphenilthioureas in basic medium or by addition of aliphatic and ...
A. Popusoi, N. Barba, A. Gulea, J. Roy, D. Poirier, V. Prisacari   +5 more
doaj  

Über Reaktionen von Dicyanimid (DCI) mit N,N'-disubstituierten Thioharnstoffen

CHIMIA, 1974
The reaction of dicyanimide with symmetrical disubstituted thioureas in absolute alcohol in presence of hydrogen chloride gives in good yields derivatives of the 1.3.5-thiadiazine.
Eberhard Fischer, Rainer Evers, Gerhard Rembarz   +2 more
doaj   +1 more source