Synthesis 2021; 53(04): 731-753
DOI: 10.1055/s-0040-1706547
paper

Inter- and Intramolecular Cycloaddition Reactions of Ethenetricarboxylates with Styrenes and Halostyrenes

Shoko Yamazaki
a   Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan   Email: yamazaks@cc.nara-edu.ac.jp
,
Zhichao Wang
b   Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Gakuen-cho 1-1, Nakaku, Sakai, Osaka 599-8531, Japan
,
Kentaro Iwata
a   Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan   Email: yamazaks@cc.nara-edu.ac.jp
,
Khotaro Katayama
a   Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan   Email: yamazaks@cc.nara-edu.ac.jp
,
Hirotaka Sugiura
b   Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Gakuen-cho 1-1, Nakaku, Sakai, Osaka 599-8531, Japan
,
Yuji Mikata
c   KYOUSEI Science Center, Nara Women’s University, Nara 630-8506, Japan
,
Tsumoru Morimoto
d   Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Takayama, Ikoma, Nara 630-0192, Japan
,
Akiya Ogawa
b   Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Gakuen-cho 1-1, Nakaku, Sakai, Osaka 599-8531, Japan
› Author Affiliations
This work was supported by the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) and Japan Society for the Promotion of Science (JSPS) (KAKENHI Grant Number JP26410048).


Abstract

Inter- and intramolecular cycloaddition reactions of ethenetricarboxylates with styrenes and α-halostyrenes have been investigated. The reactions of ethenetricarboxylates with styrenes or α-bromostyrenes in the presence of SnCl4 or SnBr4 stereoselectively gave 2,4-cis-substituted cyclobutanes. The intramolecular cycloaddition reactions of a series of styrene-functionalized ethenetricarboxylate amides, including in situ generated derivatives, showed high diversity of reaction modes depending on the structures and substituents of the substrates. The regioselectivity and stereoselectivity of the reactions as well as reaction mechanisms were discussed based on the DFT calculations.

Supporting Information



Publication History

Received: 25 August 2020

Accepted after revision: 24 September 2020

Article published online:
02 November 2020

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