Azethoxyl nitroxide spin-labeled crown ethers and cryptands with the NO. bul. group positioned near the cavity

…, J Cuomo, L Lex, SE Seyedrezai

Index: Keana, John F. W.; Cuomo, John; Lex, Laszlo; Seyedrezai, Seyed E. Journal of Organic Chemistry, 1983 , vol. 48, # 16 p. 2647 - 2654

Full Text: HTML

Citation Number: 42

Abstract

Our plan, guided by periodic examination of CPK molecular models, 17 originally called for the construction of a cis or trans azethoxyl nitroxide18 patterned after schematic structure 1 (R= a single bond). Alcohol 10 and acid 11 were prepared from tetraethylene glycol (9)(see Experimental Section), as potential precursors for 13 via a Michael reaction on the corresponding unsaturated ketones 12, followed by a reductive cyclization. When neither ...