1.1R:Bu4N+ •Br-, R:Bu2SnO, S:ClCH2CH2Cl, 1 h, 70°C
2.1R:EtN(Pr-i)2, S:CH2Cl2, rt; 2 h, rt
3.1R:Cl2CHCO2H, S:CH2Cl2
3.2C:21871-47-6, 180 s
3.3R:R:C5H5N, 30 min, rt
3.4R:Et4N+ •Br-, 45 min, rt
3.5R:Me3SiN=CMeOSiMe3, R:1H-Imidazole, R:Et3N, S:CCl4, S:MeCN, 5 h, 30°C
3.6R:3(Bu4N) •HP2O7, S:DMF, 18 h, 30°C
3.7R:DBU, S:MeCN
3.8R:NH3

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