Derivatization of secondary amino acids with 7-nitro-4-benzofurazanyl ethers

L Johnson, S Lagerkvist, P Lindroth, M Ahnoff…

Index: Johnson, Lars; Lagerkvist, Soeren; Lindroth, Peter; Ahnoff, Martin; Martinsson, Kerstin Analytical Chemistry, 1982 , vol. 54, # 6 p. 939 - 942

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Citation Number: 30

Abstract

Flve 7-nltro-4-benzofurmzanyl ethers have been Synthesized and their water solubllitles and reactivities have been determlned. 4-Methoxy-7-nltrobenzofurazan (NBD-OCH,) has a solublllty slmllar to that of 4-chloro-7-nltrobenzofurazan (NBD-CI) but reacts-3.5 tlmes faster wlth hydroxyprollne. Hydroxyprollne reacts quantltatlvely wlth NBD-OCH, In acetonltrlle- water, while conslderable losses are seen when NBD-CI Is used In this; medlum. 4-(2- ...