Journal
ORGANIC LETTERS
Volume 23, Issue 19, Pages 7325-7329Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.1c02361
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Funding
- National Natural Science Foundation of China [21825108, 21521002]
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This study successfully utilized a chiral frustrated Lewis pair to achieve asymmetric halocyclization of 2-vinylbenzyl alcohols, resulting in optically active 1,3-dihydroisobenofuran derivatives with high yields. These derivatives can be conveniently converted into other useful chiral compounds.
By the use of a chiral frustrated Lewis pair (FLP) consisting of a chiral-diene-derived borane and (Bu3P)-Bu-t as the catalyst, an asymmetric halocyclization of 2-vinylbenzyl alcohols with NBS or NIS was successfully realized. A variety of optically active 1,3-dihydroisobenofuran derivatives were obtained in high yields with up to 87% ee and could be conveniently converted to other useful chiral compounds.
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