Synthetic Communications p. 2287 - 2293 (2000)
Update date:2022-07-29
Topics:
Zwierzak, Andrzej
N-Alkylation of primary alkyl bromides with diethyl N-sodio-N-(t- butoxycarbonyl)phosphoramidate 1 carried out in boiling acetonitrile in the presence of 10mol% of tetrabutylammonium bromide as catalyst leads to the corresponding N-alkyl derivatives 2a-I. Deprotection of 2 by refluxing with p-toluenesulfonic acid in ethanol-affords ammonium tosylates 3a-I in reasonable yields.
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