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Citation: ZHU Ying-Hong, LOU Hui, LÜ Ping, ZHENG Xiao-Ming. Synthesis and Properties of 4-(N',N'-Dialkylamino)-N-alkyl pyridinium Salts[J]. Chinese Journal of Applied Chemistry, ;2002, 19(5): 446-449. shu

Synthesis and Properties of 4-(N',N'-Dialkylamino)-N-alkyl pyridinium Salts

1.
Department of Chemistry, Zhejiang University, Hangzhou 310028

Corresponding author: ZHENG Xiao-Ming,
Received Date: 8 August 2001
Available Online: 14 December 2001
Fund Project: 浙江省自然科学基金资助项目(299024) (299024)

A series of thermal stable phase-transfer catalysts based on alkyl pyridium salt were synthesized, their catalytic activities were evaluated in the typical aromatic nucleophilic substitution reaction(fluorination). Among the catalysts prepared 4-(N',N'-dimethylamino)-N-ethylhexyl pyridinium salt(Cat 2) exhibited the highest catalytic activity. It give p-nitrofluorobene in yield up to 98.6% in 1.5 h reaction.
- pyridinium salt,
- phase-transfer catalyst,
- aromatic nucleophilic substitution reaction
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