Synthesis and some reactions of ferrocenylacetylenes
β Scribed by G. Doisneau; G. Balavoine; T. Fillebeen-Khan
- Book ID
- 103225922
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 311 KB
- Volume
- 425
- Category
- Article
- ISSN
- 0022-328X
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π SIMILAR VOLUMES
Some novel highly substituted diazoquinones have been synthesised in one step from simple anilines by treatment with nitric acid in sulfuric acid solution. The reaction is proposed to proceed via an N,3,4,5-tetranitroaniline which on its reaction pathway undergoes a nitro-nitrito rearrangement.
A~,lnitroso ccxnpounds c;isily react ;is nucleophilcs ~ith conjugated azoalkenes to give (~-(arylimino-N-oxide)hydraz~mes by their 1,4-addition to the a~x~-cnc system These adducts undergo an internal hetcr~x:yclizati~m process with pyra;/.ole ring formation to produce 1-alkoxycarbonyl-or I-amintx~l
## Abstract The synthesis of 2,4,6βcycloheptatrienethione (**1**) was accomplished by reaction of tropone and phosphorus pentasulfide. Although **1** proved to be extremely unstable in concentrated solution, its UV. spectrum was measured, the Ξ΅βvalues being determined indirectly by hydrolysis to tr
Synthesis and Reactions of Some Dinitrodiazoquinones. -Nitration of simple anilines in the system nitric acid-sulfuric acid affords novel p-diazoquinones [cf. (II)] in moderate to good yields. The reaction is proposed to go via an N,3,4,5-tetranitroaniline, which can be trapped as its O-methylnitra