10.1002/anie.201710277
Angewandte Chemie International Edition
COMMUNICATION
Silyl enol ether 7a (0.10 mmol, 15.6 mg) and iminoiodinane 3c (0.15
mmol, 53.9 mg) were dissolved in MeCN (2.0 mL), and the reaction
mixture was stirred at 0 °C for 4 h under photo-irradiation by LED light
(peak wavelength 375 ± 3 nm). After concentration under reduced
pressure, the reaction mixture was directly purified by silica gel column
chromatography (Hexane : EtOAc = 80 : 20) to give 8a (14.7 mg, 75%).
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Acknowledgements
This work was partly supported by JSPS KAKENHI (Grant
Number 16H06384 and 17K15423). We thank M. Saito (Kyoto
Univ.) for generous donation of the substrates, and HALCHEM
VIII symposium for fruitful discussions.
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