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Reaction of 1-alkylbenzimidazolium 3-ylides with ethyl 2,2-dihydropolyfluoroalkanoates

✍ Scribed by Xue-chun Zhang; Wei-yuan Huang

Book ID
104208834
Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
392 KB
Volume
54
Category
Article
ISSN
0040-4020

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✦ Synopsis

In the presence of base, ethyl 2,2-dihydropolyfluoroalkanoates(2) reacted with N-phenacyl(la-lb), Nacetonyl(le), N-ethoxycarbonylmethyl(ld) and N-(diethylaminocarbonyl-methyl) benzimidazole bromides(le) in DMF to give the corresponding pyrrolo[l,2-a]quinoxaline derivatives (3) respectively. When (2) was reacted with N-cyanomethyl benzimidazole bromides (If-lg) , fluoroalkyl substituted 1-aryl pyrrole derivatives (4) were formed as the major products.

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