Tetrahedron letters

Biomimetic transformation of dehydrocurdione into curcumenol and isocurcumenol and their stereochemistries

…, M Kodama, Y Asakawa, T Takemoto, Y Fukazawa

Index: Shiobara, Yoshinori; Iwata, Tomoko; Kodama, Mitsuaki; Asakawa, Yoshinori; Takemoto, Tsunematsu; Fukazawa, Yoshimasa Tetrahedron Letters, 1985 , vol. 26, # 7 p. 913 - 916

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Citation Number: 30

Abstract

: colrless oil, [α] D −33.0° (c1.17, CHC1 3 ), m/z 234.1617 (C 15 H 22 O 2 ), λ max 235 nm (ε 14000), ν 1738, 1666 cm −1 , PMR; δ 0.87 (3H, d, J6.8; 14-Me), 1.18 (1H, m), 1.65 (1H, m), 1.73 (3H, br.s; 15-Me), 1.80 (1H, m), 1.84 (3H, br. s; 13-Me), 1.92 (1H, m), 2.24 (3H, br.s; 12-Me), 2.32 (1H, m; H 4 ), 2.47 (2H, br.s; H 6 ), 2.82 (1H, dd, J11.8, 8.8; H 1 ), 4.76 (1H, br.s; H 9 ), 4.95 (1H, br. s; H 9 ), CMR; δ ... ... Spectral properties of : ν 1739, 1667, 1588 ...