Synthesis 2016; 48(17): 2889-2895
DOI: 10.1055/s-0035-1561643
paper
© Georg Thieme Verlag Stuttgart · New York

Sc(OTf)3-Catalyzed Cyclization of Allyl Amides of Ethenetricarboxylate

Shoko Yamazaki*
a   Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan   Email: yamazaks@nara-edu.ac.jp
,
Mamiko Niina
a   Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan   Email: yamazaks@nara-edu.ac.jp
,
Kiyomi Kakiuchi
b   Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Takayama, Ikoma, Nara 630-0192, Japan
› Author Affiliations
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Publication History

Received: 17 March 2016

Accepted after revision: 18 April 2016

Publication Date:
19 May 2016 (online)


Abstract

Catalytic cyclization of allyl amides of ethenetricarboxylate leading to pyrrolidines has been examined. Reaction of allyl amides of ethenetricarboxylate with Sc(OTf)3 (0.2 equiv) gave 4-hydroxymethyl-2-oxopyrrolidine derivatives as major products. The formation of hydroxymethylpyrrolidines may arise from participation of adventitious water in situ. Sc(OTf)3-catalyzed cyclization reactions of the allyl amides with TMSX (X = Cl, Br) proceeded efficiently to give halogenated 2-oxopyrrolidine derivatives. Sc(OTf)3-catalyzed cyclization reactions of the allyl ester with TMSX (X= Cl, Br) also proceeded to give halogenated 2-oxotetrahydrofuran derivatives.

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