Tetrahedron letters

Photoreductive cyclization of N, N-dialkyl β-oxoamides: Formation of six-membered ring lactams

J Cossy, D Beloitti, JP Pete

Index: Cossy, J.; Belotti, D.; Pete, J. P. Tetrahedron Letters, 1987 , vol. 28, # 39 p. 4545 - 4546

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Citation Number: 11

Abstract

: IR (CDCL 3 ): 3590, 3400, 1650, 1620cm −1 . 1 H NMR (300 MHz CDCL 3 ) major isomer: δ 0.98 (d, 3H, J=7.1 Hz); minor isomer: δ 0.96 (d, 3H, J=7.1 Hz). : IR (CDCL 3 ): 3590, 3400, 1650, 1620cm −1 . 1 H NMR (300MHz CDCL 3 ) major isomer: δ 0.97 (d, 3H, J=6.5 Hz); minor isomer: δ 0.95 (d, 3H, J=6.5 Hz). : IR (CDCL 3 ): 3580, 3380, 1650, 1620cm −1 . 1 H NMR (300MHz CDCL 3 ): δ 5.05 (d, 1H, J=0.5 Hz); 5.30 (d, 1H, J=0.5 Hz). : mp 96–97°C. IR (CDCL 3 ): ...