Enhancement of 5-Aminopenta-2, 4-dienals Electrophilicity via Activation by O, N-Bistrifluoroacetylation. Application to an N-Acyl Pictet− Spengler Reaction†

P Nuhant, SB Raikar, JC Wypych…

Index: Ihara, Masataka; Yasui, Ken; Taniguchi, Nobuaki; Fukumoto, Keiichiro Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990 , # 5 p. 1469 - 1476

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Citation Number: 19

Abstract

... The Journal of Organic ... 2009, 74 (24), pp 9413–9421. DOI: 10.1021/jo9019545. Publication Date (Web): November 19, 2009. Copyright © 2009 American Chemical Society. ... The chemical shifts for C-2 (δ c 21.7 and 22.5) and the coupling constants for H-4 (J = 4.4 Hz) indicate an ...