NDLI: Alkyl Heteroaromatics as Building Blocks in Organic Synthesis: The Reactivity of Alkyl Azoles toward Electrophilic Reagents

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Alkyl Heteroaromatics as Building Blocks in Organic Synthesis: The Reactivity of Alkyl Azoles toward Electrophilic Reagents

Content Provider	Semantic Scholar
Author	Hafiz, I. S. Abdel Hassanien, Abu Zeid A. Hussein, Abdelhaleem M.
Copyright Year	1999
Abstract	Oxazolone (1) couples with aromatic diazonium salts to yield the arylhydrazones (3a-c). Compound 3 reacts with aniline to give aryl hydrazone (5). Compound 5 was also obtained via converting 1 into the imidazolone (4) and subsequent treatment of 4 with aromatic diazonium salts. Compounds 1 and 12 reacted with arylidenemalononitrile (6) to yield compounds 8 and 14 respectively. Also compounds 1, 12 condensed with an aromatic aldehydes to yield 11 and 17. Compounds 11, 17 reacted further with one molecule of malononitrile to give compounds 8 and 14, respectively. Compound 20 which was generated in situ by heating phenacylthiocyanate (19) in acetic anhydride on treatment with hydrazine hydrate or phenyl hydrazine gives 21 and 22 respectively. A lso 20 reacted with malononitrile or with ethyl cyanoacetate to give 23 and 24, respectively.
Starting Page	923
Ending Page	928
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1515/znb-1999-0716
Volume Number	54
Alternate Webpage(s)	http://zfn.mpdl.mpg.de/data/Reihe_B/54/ZNB-1999-54b-0923.pdf
Alternate Webpage(s)	http://www.znaturforsch.com/ab/v54b/54b0923.pdf
Alternate Webpage(s)	https://doi.org/10.1515/znb-1999-0716
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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