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Benzylidene derivatives of 5-nitro- and 5-aminobenzo[b]-3(2H)-thiophenone

โœ Scribed by G. A. Yugai; M. A. Mostoslavskii; Yu. L. Yagupol'skii; N. P. Makshanova

Book ID
112329629
Publisher
Springer US
Year
1972
Tongue
English
Weight
105 KB
Volume
8
Category
Article
ISSN
0009-3122

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5-(2,3-diphenylcyclopropenylidene)-2(5H)
5-(2,3-diphenylcyclopropenylidene)-2(5H)-thiophenone characterization of a thiophene-inserted type compound of diphenylcyclopropenone
โœ Kazuko Takahashi; Kazumi Nishijima; Kahei Takase; Shigeyoshi Katagiri ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 266 KB

The title compound 5 has been synthesized and the effect of cyclic z-system insertion into diphenylcyclopropenone 1 has been discussed. The distribution of positive charge over the 3membd. ring and phenyl groups slightly predominates in 5 than in parent annulenone 1, in contrast to 5-cycloheptatrien