Results 171 to 180 of about 8,698 (205)

Thiosemicarbazides in heterocyclization

Journal of Heterocyclic Chemistry, 2011
AbstractThis review summarizes the preparation of substituted thiosemicarbazides with their application with synthesis of important linear and heterocyclic compounds. J. Heterocyclic Chem., (2011).
Alaa A. Hassan, Ahmed M. Shawky
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Tin(IV) Complexes with Thiosemicarbazide and 4‐Methyl‐3‐thiosemicarbazide Derivatives

Zeitschrift für anorganische und allgemeine Chemie, 2007
AbstractFive new complexes were isolated from a CH2Cl2 solution of SnCl4 and the ligands benzil bis(thiosemicarbazone) L1H6, benzil bis(4‐methyl‐3‐thiosemicarbazone) L1Me2H4, 5‐methoxy‐5,6‐diphenyl‐4,5‐dihydro‐2H‐[1,2,4]‐triazine‐3‐thione, L2H2OMe and 5‐methoxy‐4‐methyl‐5,6‐diphenyl‐4,5‐dihydro‐2H‐[1,2,4]‐triazine‐3‐thione, L2MeHOMe.
David G. Calatayud, Elena López‐Torres, Antonia Mendiola, Jesús R. Procopio   +3 more
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Thiosemicarbazides: synthesis and reactions

Journal of Sulfur Chemistry, 2011
Thiosemicarbazides are convenient precursors which have been extensively utilized in heterocyclic synthesis.
Mohamed A. Metwally, Samir Bondock, Hossam El-Azap, Ez-Eldin M. Kandeel   +3 more
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Estimation of thiosemicarbazide with chloramine-T

Talanta, 1970
A rapid and accurate method for the estimation of thiosemicarbazide in aqueous solution has been developed based on its oxidation with chloramine-T at room temperature and pH 4. The effect of such variables as pH, mode of addition of reagents and concentration of chloride ion on the extent of oxidation has been studied.
D S, Mahadevappa, A S, Murthy
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Einige Komplexverbindungen der Thiosemicarbazide

Zeitschrift für anorganische und allgemeine Chemie, 1934
AbstractEs wurde gezeigt, daß die Thiosemicarbazide mit mehreren Metallen Komplexverbindungen bilden, in welchen sie zwei Koordinationsstellen besetzen. Es wurden namentlich die Nickelverbindungen untersucht. Diese sind entweder blaue Verbindungen vom Typus [NiThio3]X2 oder rote Verbindungen vom Typus [NiThio2]X2.
K. A. Jensen, E. Rancke‐Madsen
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1,3,4-THIADIAZOLES FROM THIOSEMICARBAZIDES

Phosphorus, Sulfur, and Silicon and the Related Elements, 1991
Abstract A new method for the synthesis of 1,3,4-thiadiazoles is described. Thus condensation of 4-methyl-4phenyl-3-thiosemicarbazide with an aldehyde or ketone affords 1,1-disubstituted-6-[1-(arylethylidine) amino] −2,5-dithiobiureas, rather than the anticipated 4,4-disubstituted-3-thiosemicarbazones.
John P. Scovill, Daniel L. Klayman, Judith L. Flippen-anderson, Richard Gilardi   +3 more
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Reinvestigation of crystal growth of thiosemicarbazide potassium chloride and thiosemicarbazide lithium chloride

Optik, 2014
Abstract Reinvestigation of the growth of thiosemicarbazide potassium chloride crystal ( 1 ) (Chandrasekaran et al. [1] ) and thiosemicarbazide lithium chloride crystal ( 2 ) (Maadeswaran et al. [2] ), unambiguously confirms that compounds 1 and 2 are pure thiosemicarbazide and do not contain any alkali metal or chloride ions.
Bikshandarkoil R. Srinivasan, Nagarajan Keerthika   +1 more
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α‐Ureidoalkylation of Thiosemicarbazide and Aminoguanidine.

ChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A. S. Sigachev, A. N. Kravchenko, P. A. Belyakov, O. V. Lebedev, N. N. Makhova   +4 more
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Reaction of Acetone Cyanohydrin with Thiosemicarbazide.

ChemInform, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
D. V. Kryl'sky, Kh. S. Shikhaliev, V. V. Pigarev, A. S. Solovyev   +3 more
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4-Hydroxy-3-thiosemicarbazid

Monatshefte f�r Chemie, 1974
The synthesis of 4-hydroxy-3-thiosemicarbazide (3) by hydrazinolysis of O-p-chlorophenyl-N-hydroxy-thiocarbamate (2) is described. A mechanism for the decomposition of2 to O-p-chlorophenyl-carbamate (6) and sulfur is discussed.
P. Gr�bner, E. M�ller
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