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New Reaction of Pyridinium Ylide with 2,4,6-Trinitrofluorobenzene Leading to Stable Heptatrienide Moiety.

✍ Scribed by Yuri G. Gololobov; Olesya A. Linchenko; Pavel V. Petrovskii; Victor N. Khrustalev; Irina A. Garbuzova

Publisher
John Wiley and Sons
Year
2007
Weight
16 KB
Volume
38
Category
Article
ISSN
0931-7597

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New reaction of pyridinium ylide with 2,
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## Abstract A new reaction of pyridinium ylide (**4**) with 2,4,6‐trinitrofluorobenzene leading to stable negatively charged heptatriene moiety (**6**) is described. This reaction proceeds via a new route of decomposition of intermediate σ‐complex (**5**) occurring with the formation of ethylfluoro

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## Abstract Reactions of NCCH~2~COOMe 1a and CH~2~(CN)~2~ 1b with 2,4‐dinitrofluorobenzene 2 at the presence of Et~3~ N result in deeply colored crystalline stable salts 4a,4b with anions that contain a system of conjugated bonds. Similar reaction of 2 with phosphorus‐containing zwitterion 6 bearin