Tetrahedron letters

Lewis acid induced reaction of 2, 3-epoxy phenylsulphoxides

CM Rayner, AD Westwell

Index: Rayner, Christopher M.; Westwell, Andrew D. Tetrahedron Letters, 1992 , vol. 33, # 17 p. 2409 - 2412

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Citation Number: 12

Abstract

1 H NMR (CDCl 3 , 300MHz); (7a) δ 0.88 (3H, t, J 7.0Hz, CH 3 ), 1.30–1.50 (4H, m, CH 2 CH 2 ), 2.69 (1H, dt, J 5.0, 2.1Hz, H-3, 2.90, 2.93 and 3.12 (3H, ABX system, J 13.9, 4.9, 6.7Hz, CH 2 -1 CH-2 respectively), 7.43–7.56 (3H, m, ArH), 7.60 (2H, dd, J 7.5, 1.9Hz, ArH); (7b) δ 0.93 (3H, t, J 7.0Hz, CH 3 ), 135–1.60 (4H, m, CH 2 CH 2 ), 2.83 (1H, dt, J 5.4 , 2.4Hz, H-2), 2.87 (1H, dt, J 4.2, 2.4Hz, H-3), 3.01 (1H, dd, J 13.5, 5.1Hz, one of CH 2 -1), 3.12 ...