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芳胺重氮化后,接著再和磺酰胺(如TsNH2,MsNH2)反應,水解得到芳基疊氮的反應。此反應最早由Dutt, Whitehead和Wormall在1921年報道。芳基重氮鹽和磺酰胺反應先得到磺酰基芳基疊氮,水解后得到產物。類似的疊氮化合物也可以通過重氮鹽和氨,肼和羥胺反應制得。
反應機理
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反應實例
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Phenylazide (4). 1 (4.6 g, 50 mmol) in 25 mL H2O and 35% HCl (15 mL) was diazotized with aq NaNO2 (3.5 g, 55 mmol). After diazotization (starch-iodine paper), p-toluenesulfonamide 3 (8.5 g, 50 mmol) in water (175 mL) and NaOH (6 g, 150 mmol) were added. After 10–15 min, filtration afforded 8 g of 4 (85%), mp 85 C.
【Dutt PK, Wormall A, J Chem Soc, 1921, 119, 2088】
相關文獻
1 Dutt PK, Wormall A J Chem Soc 1921 119 2088
2 Dutt PK J Chem Soc 1924 125 1463
3 Bretschnelder H Monatsh 1950 81 970
4 Hassner A Angew Chem Int 1986 25 478
5 Bols M J Org Chem 2003 68 9453
6 Zimmermann V Angew Chem Int 2005 44 5188
參考資料
一、Organic Syntheses Based On Name Reactions, 3RdEd, A. Hassner, Page 134。
二、Comprehensive Organic Name Reactions and Reagents,946-948.
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