期刊
ORGANIC LETTERS
卷 24, 期 37, 页码 6772-6776出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.2c02630
关键词
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资金
- State Key Laboratory of Pulp and Paper Engineering [2020C02]
- National Natural Science Foundation of China [21971074]
- Natural Science Foundation of Guangdong Province [2019A1515010006, 2021A1515010159]
- 111 Project [B20003]
This study demonstrates for the first time the utilization of sulfilimine as a directing group for Rh(III)-catalyzed C-H activation/annulation with intermolecular and intramolecular alkyne compounds. Sulfilimine functions as a transformable directing group and an internal oxidant in the annulation with an alkyne moiety via N-S bond cleavage. Importantly, the retention of sulfilimine as a directing group is also achieved in the Rh(III)-catalyzed ortho-alkynylation with alkyne bromides.
Shown herein is the first time that the sulfilimine is utilized as a directing group for Rh(III)-catalyzed C-H activation/ annulation with intermolecular and intramolecular alkyne com-pounds. Sulfilimine serves as a transformable directing group, an internal oxidant, in the annulation with an alkyne moiety via N-S bond cleavage. Notably, the retention of sulfilimine as a directing group is also achieved in the Rh(III)-catalyzed ortho-alkynylation with alkyne bromides.
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