Structures of betaenones A and B, novel phytotoxins from Phoma betae Fr.

A Ichihara, H Oikawa, K Hayashi…

文献索引：Ichihara,A.; Oikawa,H.; Hayashi,K. Journal of the American Chemical Society, 1983 , vol. 105, p. 2907

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被引用次数: 57

摘要

Figure 1. Perspective view of the betaenone A (1) molecule. here the structure determination of these novel phytotoxins using X-ray analysis and chemical correlation. Betaenone A [l: C21H34053, mp 153-155" C;[aJD+ 61.2"(c 1.1, CHC1,); E1 MS, m/z 366 (M'); UV XmaxEtoH 278 nm (e 63OO) J shows IR (KBr) bands at 1655 and 1578 cm-I assignable to the a,@- unsaturated ketone and a band at 3400 cm2'due to OH groups that resisted acetylation. ...