Natural acetylenes. Part XXVIII. C17-polyacetylenic alcohols from the Umbellifer Daucus carota L. (carrot) : alkylation of benzene by acetylenyl(vinyl)carbinols in the presence of toluene-p-sulphonic acid
作者:R. K. Bentley、D. Bhattacharjee、Ewart R. H. Jones、V. Thaller
DOI:10.1039/j39690000685
日期:——
Three acetylenic compounds, the known alcohol (A; X = OH, Y = H) and diol (A; X = Y = OH) and the new monoacetate (A; X = OAc, Y = OH) have been isolated from the roots of the common carrot, Daucus carota L. H2CCH·CHX·[CC]2·CHY·CH [graphic omitted] CH·[CH2]6Me (A) When refluxed with toluene-p-sulphonic acid in benzene, the alcohol and synthetic oct-1-ene-4,6-diyn-3-ol rearranged to the expected primary
从根中分离出三种炔属化合物,即已知的醇(A; X = OH,Y = H)和二醇(A; X = Y = OH)和新的单乙酸酯(A; X = OAc,Y = OH)公共胡萝卜,胡萝卜L.ħ 2 ç CH·CHX·[C C] 2 ·CHY·CH [图形省略] CH·[CH 2 ] 6我(A)当被回流甲苯p -sulphonic酸在苯,醇和合成的辛烯-1-烯-4,6-二炔-3-醇重排为预期的伯醇(和甲苯磺酸酯),但此外生成了PhCH 2 ·CH CH·[C C]型苯甲烃2 R,起因于溶剂的侵蚀。