Research Article
One-Pot Synthesis of Hypervalent Diaryl(iodo)bismuthanes from o-Carbonyl Iodoarenes by Zincation
Table 1
Optimization of the reaction conditions for the synthesis of 10a.
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| | Entry | Zn | TolBiCl2 | Ultrasound | Ultrasound | Yield (%) | | | (equiv) | (equiv) | Temp (°C) | Time (h) | 10a |
| | 1 | 1.0 | 1.0 | 25 | 6 | 4 | | 2 | 1.5 | 1.0 | 25 | 6 | 9 | | 3 | 2.0 | 1.5 | 25 | 5 | 14 | | 4 | 2.5 | 1.5 | 25–48 | 3 | 18 | | 5 | 3.0 | 2.0 | 25–48 | 4 | 28 | | 6 | 3.5 | 2.0 | 25–48 | 4 | 41 | | 7 | 4.0 | 2.0 | 25–48 | 4 | 61 | | 8 | 4.5 | 2.0 | 25–48 | 5 | 60 | | 9 | 4.0 | 3.0 | 25–48 | 5 | 55 |
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