Generation of azomethine ylides via the desilylation reaction of immonium salts

A Padwa, G Haffmanns, M Tomas

Index: Padwa, Albert; Haffmanns, Gunter; Tomas, Miguel Journal of Organic Chemistry, 1984 , vol. 49, # 18 p. 3314 - 3322

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Citation Number: 61

Abstract

needles; mp 172-172.5" C (ethanol-chloroform 101). Anal. Calcd for CI3H8BrN902: C, 49.09; H, 2.55; N, 13.21. Found: C, 48.98; H, 2.75; N, 13.07. IR 1345 and 1500 cm-'(C- NO,);'H NMR (300 MHz, Me, SO-d6) 6 8.55 [s, 1, H-71, 8.15 [d, 1, J4, 5= 10 Hz, H-51, 7.98 [d, 1, H-41, 7.81-7.84 [d, 2, J23,= 8 Hz, H-2'1, 7.65-7.68 [t, 2, J3, 4,= 8 Hz, H-3'1, 7.54-7.57 [t, 1, H-4'1.