Nucleophilic Substitution on Dialkoxy Bisulfides. II. Reactions with Hydrazine Derivatives
نویسندگان
چکیده
منابع مشابه
Nucleophilic substitution of bromonorbornenes and derivatives by electron transfer reactions.
The photoinitiated substitution reactions of anti-7-bromobenzonorbornadiene (5), its syn isomer 6, exo-anti-13-bromobenzocyclobutanorbornene (7), syn-7-bromonorbornene (8) and bromonorbornane (9) with Me(3)Sn(-) and Ph(2)P(-) anions, in liquid ammonia, are here informed to occur with good yields of substitution. The stereochemical outcome is discussed in terms of calculations with the B3LYP fun...
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Aminoanthraquinones were successfully synthesized via two reaction steps. 1,4-Dihydroxyanthraquinone (1) was first subjected to methylation, reduction and acylation to give an excellent yield of anthracene-1,4-dione (3), 1,4-dimethoxyanthracene-9,10-dione (5) and 9,10-dioxo-9,10-dihydroanthracene-1,4-diyl diacetate (7). Treatment of 1, 3, 5 and 7 with BuNH2 in the presence of PhI(OAc)2 as catal...
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The 2,3,4-tri-toluenesulfonate ester derivatives of the methyl pyranosides of l-arabinose, d-ribose, d-lyxose, and d-xylose have been prepared, and their substitution reactions with various nucleophiles have been examined. For arabinose, xylose, and ribose, highly regioselective monosubstitutions were observed with benzoate, nitrite, and azide anions. These reactions have led to short and simpl...
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Carboxylic acid derivatives are the most widely occurring of all molecules, both in laboratory chemistry and in biological pathways. Specifically, acid derivatives are compounds in which the hydroxyl group of the carboxylic acid has been replaced by another acyl substituent that can act as a leaving group in nucleophilic acyl substitutions. These compounds can be acid halides, acid anhydrides, ...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1979
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.52.3463