Results 71 to 80 of about 818 (181)
The Preparation and Pyrolysis of 2-methyl-4-alkyl(aryl)semicarbazides
, 1969 The purpose of the research described in this thesis was twofold. Attempts were made to prepare several 4-alkyl (aryl)-2-methylsemicarbazides, many of which had not been prepared previously.
Sherwood, Bob Edwin
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di‐π‐methane rearrangement of benzonorbornadiene system
, 1998 The [4 + 2] cycloadduct 17 of 2,3-dimethylidene-1,2,3,4-tetrahydro-1,3-methanonaphthalene and 4-phenyl-4H-1,2,4-triazole-3,5-dione (PTAD) was subjected to a tripler-sensitized di-pi-methane rearrangement.
Altundas, ALİYE +8 more
core +1 more source
, 2016 A new efficient two-step synthesis of 2,4-dihydro-3H-1,2,4-triazolin-3-ones (triazolinones) from readily available amines is reported. Our novel conditions using hexamethyl disilazane, bromotrimethylsilane, and a catalytic amount of ammonium sulfate ...
Xianhai Huang (2026387) +4 more
core +1 more source
Design, Synthesis and Biological Activities of (Thio)Urea Benzothiazole Derivatives. [PDF]
Int J Mol Sci, 2023 Mendieta-Wejebe JE +4 more
europepmc +1 more source
, 2010 1117-11263-[(2S)-3-Acetyl-5-amino-N-(4-substituted-thiazol-2-yl)2,3-dihydro-1,3,4-oxadiazol-2-yl]-indolin-2-yl acetates, 1-{N-[(2R)-2-(-2-oxoindolin-3-ylidene)-4-oxo-1,3-thiazolidin-3-yl]-3-(4-substituted-thiazol-2yl)ureas, N-(4-substituted-thiazol-2 ...
Basavarajaiah, S M +1 more
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Synthesis of 1-benzyl-6-azauracil derivatives, chlorinated in the nucleus
, 1981 Glyoxylic acid 2-benzylsemicarbazone derivatives, chlorinated in the aromatic nucleus (Ia-Id) were prepared either by reaction of glyoxylic acid semicarbazone with the corresponding benzyl chlorides or by treatment of benzylidene semicarbazide with ...
Petr Bedrník +5 more
core +1 more source
Benzotriazole as a Synthetic Auxiliary
, 2012 Benzotriazole is a very useful synthetic auxiliary with versatile applications in organic chemis¬try. We have used benzotriazole in the synthesis of various heterocyclic compounds (benzoxazine, quinazoline, triazinetrione, hydantoin, oxadiazine and ...
Butula, Ivan +5 more
core +1 more source
Estudo da síntese espectros I.V. e atividade farmacobiológica de 1-acil-4-aril-tiosemicarbazidas e triazóis 3,4,5-trissubstituídos [PDF]
, 1987 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Curso de Pós-Graduação em Físico ...
Peres, Marize Terezinha Lopes Pereira
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, 2021 New multipotent antioxidants (MPAOs) semicarbazides and thiosemicarbazides bearing thiolated butylated hydroxytoluene (BHT) moiety were synthesized by a simple reaction between acid hydrazide, aryl isocyanates, and isothiocyanates.
Syabilah , Sazeli
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Semicarbazide and thiosemicarbazide containing butylated hydroxytoluene moiety: new potential antioxidant additives for synthetic lubricating oil. [PDF]
RSC Adv, 2021 Sazeli S +6 more
europepmc +1 more source