Tetrahedron letters

Efficiency for solid-state photorearrangement of 2, 5-cyclohexadienones

Y Ito, H Ito, M Ino, T Matsuura

Index: Ito, Yoshikatsu; Ito, Hirohide; Ino, Masahiro; Matsuura, Teruo Tetrahedron Letters, 1988 , vol. 29, # 25 p. 3091 - 3094

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Citation Number: 8

Abstract

: colorless solid; NMR (80 MHz, CDCl 3 ) δ 6.94 (1 H, d, J = 3.9 Hz), 3.04 (3H, s, OMe), 2.08 (1 H, d, J = 3.9 Hz), 1.57 (3 H, s, 6-Me), 1.14 (9 H, s), 1.11 (9 H, s); IR (Nujol) 1705, 1690, 1088 cm −1 ; MS (rel intens) 250 (M + , 5.8), 194 (94), 179 (100); HRMS ca1cd for C 16 H 26 O 2 250.1933, found 250.1934. The isolated decomposed slowly, probably because of contamination with a trace of acids. ... (mixture): NMR (80 MHz, CDCl 3 ) δ 7.05 (1 H, d, J = 3.9 Hz), 3.28 ...