Isomerization of Halogenated Cyclopentene over a NH 4 F Catalyst | Zendy

Zhang Chengping | Zendy; Hu Ruzhu | Zendy; Qing Feiyao | Zendy; Quan Hengdao | Zendy

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Isomerization of Halogenated Cyclopentene over a NH 4 F Catalyst

Author(s) -

Zhang Chengping,

Hu Ruzhu,

Qing Feiyao,

Quan Hengdao

Publication year - 2016

Publication title -

chemcatchem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.497

H-Index - 106

eISSN - 1867-3899

pISSN - 1867-3880

DOI - 10.1002/cctc.201600055

Subject(s) - cyclopentene , isomerization , chemistry , catalysis , halogen , atom (system on chip) , fluorine , medicinal chemistry , photochemistry , stereochemistry , organic chemistry , alkyl , computer science , embedded system

The mechanism of the halogen‐transfer isomerization of halogenated cyclopentene was investigated over a NH 4 F catalyst in DMF. This catalytic system was to have the unique ability to isomerize halogenated cyclopentene selectively. The process of migration of the F atom in the 3‐position on the C(sp 3 ) atom to the 4‐position on the C(sp 3 ) atom is in chemical equilibrium, whereas the process of migration of the F atom in the 2‐position on the C(sp 2 ) atom to the 3‐position on the C(sp 3 ) atom is not. Therefore, halogenated cyclopentene containing fluorine on either the C(sp 3 ) or C(sp 2 ) atom could be prepared selectively in terms of the NH 4 F catalyst.

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