Results 171 to 180 of about 126,036 (251)
ChemInform Abstract: Hydrazonoyl Halides: A Bubbling Fountain of Biologically Active Compounds [PDF]
ChemInform, 2010 AbstractReview: 126 refs.
A. S. Shawali
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The Journal of Organic Chemistry
An efficient [3 + 2] cycloaddition reaction between in situ generated nitrile imines from hydrazonoyl halides and vinylsulfonium salts is developed. The nitrile imines are demonstrated to be a new class of reaction partner for vinylsulfonium salts to conduct the [3 + 2] cycloaddition reaction. The process provides a concise and efficient method for the
Wen-Jing Luo +7 more
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An efficient [3 + 2] cycloaddition reaction between in situ generated nitrile imines from hydrazonoyl halides and vinylsulfonium salts is developed. The nitrile imines are demonstrated to be a new class of reaction partner for vinylsulfonium salts to conduct the [3 + 2] cycloaddition reaction. The process provides a concise and efficient method for the
Wen-Jing Luo +7 more
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Hydrazonoyl halides: Useful building blocks for the synthesis of arylazoheterocycles
Journal of Heterocyclic Chemistry, 2003 AbstractFor Abstract see ChemInform Abstract in Full Text.
Ahmad Sami Shawali +1 more
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Reactions with Hydrazonoyl Halides. Part 15.1 A Synthetic Approach to 2,3-Dihydrothiadiazoles
Journal of Chemical Research, 1998 Hydrazonoyl halides 1 and 6a–f reacted with methyl hydrazinecarbodithioate (2) and methyl 3-[1-(aryl)alkylmethylidene]hydrazinecarbodithioates (9a–d or 10a,b), in ethanolic triethylamine solution, to afford the corresponding 2-hydrazono-3,5-diphenyl-2,3-dihydro-1,3,4-thiadiazoles (3), 5-methyl-2-methylsulfanyl-6-phenylhydrazono-1,3,4-thiadiazine (8 ...
Hussein A. Emam +2 more
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Tetrahedron, 2013
A series of novel bis-thiadiazoles and bis-triazoles derivatives were synthesized via the reaction of hydrazonoyl halides with different moieties. Also, the synthesis and mechanism for polypyrazole formation are described via reaction of bis-hydrazonoyl with p-benzoquinone. Synthesized compounds were elucidated by elemental analysis and spectral data.
A. R. Sayed
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A series of novel bis-thiadiazoles and bis-triazoles derivatives were synthesized via the reaction of hydrazonoyl halides with different moieties. Also, the synthesis and mechanism for polypyrazole formation are described via reaction of bis-hydrazonoyl with p-benzoquinone. Synthesized compounds were elucidated by elemental analysis and spectral data.
A. R. Sayed
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Site selectivity in reactions of hydrazonoyl halides with ketene-N,S-acetals
Journal of Sulfur Chemistry, 2008 Ketene-N,S-acetal 7 reacts with hydrazonoyl chloride 1 to afford 1,2,4-triazoles 9. The formation of 9 indicates that 7 behaves mostly as N-nucleophile rather than 1,3-dipolarophile.
Ahmad S. Shawali +2 more
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ChemInform, 2001 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Enas M. Awad +4 more
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The Utility of Hydrazonoyl Halides in the Synthesis of Bioactive Heterocyclic Compounds
Current Organic Synthesis, 2017A Farghaly Thoraya +2 more
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ChemistrySelect, 2023
The electrochemical C(sp2)‐H abstraction of hydrazones to produce 1,2,4‐triazol‐3‐ones as an appealing pathway has considerable value. By the patronage of electricity current, instead of unconventional methods, we reveal an electrochemical detour for ...
Issa Yavari +2 more
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The electrochemical C(sp2)‐H abstraction of hydrazones to produce 1,2,4‐triazol‐3‐ones as an appealing pathway has considerable value. By the patronage of electricity current, instead of unconventional methods, we reveal an electrochemical detour for ...
Issa Yavari +2 more
semanticscholar +1 more source