Results 211 to 220 of about 2,292 (253)
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1,4‐benzothiazine derivatives from 2‐aminobenzenethiol and hydrazonoyl halides
Journal of Heterocyclic Chemistry, 1983Abstract2‐Aminobenzenethiol was condensed with alkyl α‐chlorophenylhydrazonoglyoxylates yielding alkyl 2‐(2‐aminophenylthio)‐2‐arylhydrazonoglyoxylates which were cyclized to the corresponding 2‐arylhydrazono‐2,3‐dihydro‐4H‐1,4‐benzothiazin‐3‐ones.
Luciana Forti, Nicoletta Almirante
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Anti-Cancer Agents in Medicinal Chemistry, 2019
Background:The hydrazonoyl halides are presently an important target in the field of medicinal chemistry. The interest in the chemistry of hydrazonoyl halides is a consequence of the fact that they undergo a wide variety of reactions which provide routes to a myriad of both heterocyclic and acyclic compounds.
Salwa M. El-Hallouty +11 more
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Background:The hydrazonoyl halides are presently an important target in the field of medicinal chemistry. The interest in the chemistry of hydrazonoyl halides is a consequence of the fact that they undergo a wide variety of reactions which provide routes to a myriad of both heterocyclic and acyclic compounds.
Salwa M. El-Hallouty +11 more
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, 2004 ChemInform, 2015
AbstractThe chemoselectivity of the title reaction is shown to be depending on the type of the utilized hydrazonoyl halide.
Thoraya A. Farghaly +2 more
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AbstractThe chemoselectivity of the title reaction is shown to be depending on the type of the utilized hydrazonoyl halide.
Thoraya A. Farghaly +2 more
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ChemInform, 2013
AbstractNew bis‐enaminones [(III) and (IX)] are synthesized starting from pyrazoles (I).
Ahmad S. Shawali, Adel J. M. Haboub
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AbstractNew bis‐enaminones [(III) and (IX)] are synthesized starting from pyrazoles (I).
Ahmad S. Shawali, Adel J. M. Haboub
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ChemInform, 1999
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.
Hussein A. Emam +2 more
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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.
Hussein A. Emam +2 more
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Phosphorus, Sulfur, and Silicon and the Related Elements, 1998
Abstract Hydrazonoyl chlorides 1 reacted with 2-aryl-1-cyano-1-thiazol-2-ylethenes 2 in presence of triethyl-amine to give the cycloadducts 4. which were converted to the corresponding pyrazoles 5 by the action of sodium methoxide. The reaction of hydrazonoyl halides 1 and 6 with each of 2-aryli-dene-2-cyanoethanethioamides 7 and 2-arylhydrazono-2 ...
Nora M. Rateb +2 more
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Abstract Hydrazonoyl chlorides 1 reacted with 2-aryl-1-cyano-1-thiazol-2-ylethenes 2 in presence of triethyl-amine to give the cycloadducts 4. which were converted to the corresponding pyrazoles 5 by the action of sodium methoxide. The reaction of hydrazonoyl halides 1 and 6 with each of 2-aryli-dene-2-cyanoethanethioamides 7 and 2-arylhydrazono-2 ...
Nora M. Rateb +2 more
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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.
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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.
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ChemInform Abstract: REACTIONS OF HYDRAZONOYL HALIDES WITH IMIDAZOLES AND BENZIMIDAZOLES
Chemischer Informationsdienst, 1979AbstractN‐Methylimidazol und N‐substituierte Benzimidazole werden mit Hydrazonoylhalogeniden in CHCl3 in Gegenwart von NEt3 umgesetzt.
P. DALLA CROCE +2 more
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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
openaire +2 more sources