synthetic trans and cis arylcoumarans and their acetates which are related to 8-5′ neolignans are given. This information is used to reassign structures to neolignans reported in nine papers, from the cis to the trans 7-aryl-8-hydroxymethyl configurations, and to neolignans in six papers in which no assignments were made. Thus far, there is no evidence for the occurrence of 8-5′ neolignans with a cis configuration
摘要 给出了合成的反式和顺式芳基香豆素及其与8-5'新木脂素相关的乙酸酯的1 H NMR光谱特征。此信息用于将结构重新分配给九篇论文中报道的新木脂素,从顺式到反式 7-芳基-8-羟甲基构型,以及六篇未进行分配的论文中的新木脂素。到目前为止,没有证据表明在自然界中存在具有顺式构型的 8-5' 新木脂素。
Spetz, Acta Chemica Scandinavica (1947-1973), 1954, vol. 8, p. 360