… and stereochemistry of isomeric 6a??methylperhydroindolo [3, 2, 1??i, j] benzoxazines and the position of conformational equilibrium in perhydropyrrolo [1, 2??c][1, 3] …
TA Crabb, RF Newton, J Rouse
Index: Crabb, Trevor A.; Newton, Roger F.; Rouse, Janet Organic Magnetic Resonance, 1982 , vol. 20, # 2 p. 113 - 116
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Citation Number: 4
Abstract
Abstract The 1 H NMR parameters of the NCH 2 O protons in the spectrum of perhydropyrrolo [1, 2-c][1, 3] oxazine show its existence in solution at room temperature in the O-inside cis-fused conformation. rel-(3aS, 6aS, 6bR, 10aS, 11aS)-6a- Methylperhydroindolo [3, 2, 1-i, j] benzoxazine and rel-(3aS, 6aS, 6bS, 10aR, 11aS)-6a- methylperhydroindolo [3, 2, 1-i, j] benzoxazine are shown to adopt cis-and trans-fused ...
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