Novel Synthesis of Cyclopropylaminosulfoxonium Salts from (Dimethylamino) phenylsulfoxonium Methylide

K Okuma, Y Sato, T Ishii, H Ohta

文献索引：Okuma, Kentaro; Sato, Yasunari; Ishii, Toshiro; Ohta, Hiroshi Journal of Organic Chemistry, 1994 , vol. 59, # 9 p. 2390 - 2392

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被引用次数: 7

摘要

Me/'Me Me/'Me betaine solvents for dehydration. Another reason for the formation of cyclopropyl salts 3 might be the use of DBU as a base, which is a weak base compared with dimsylsodium or sodium tert-butoxide. As shown in Scheme 5, strong bases such as potassium tert-butoxide and butyllithium will afford epoxides, the normal reaction products. On the other hand, DBU: HBFd will afford a proton source of betaine intermediate, which ...