Isatogens. Part VI. Synthesis of isatogens via tolan (diphenylacetylene) intermediates
作者:C. C. Bond、M. Hooper
DOI:10.1039/j39690002453
日期:——
A number of substituted 2-nitrotolans and isatogens have been prepared in high yield from copper(I) 2-nitrophenylacetylide and substituted aromatic iodo-compounds. The reaction has been shown to be affected by both electronic and steric factors and its limitations are discussed. 2-Carbamoyltolans have been shown to cyclise to aminoindenones. A number of novel compounds have been isolated from these
Rapid construction of indole-fused 8–10 membered lactones <i>via</i> a tandem reaction
作者:Zhen Li、Shiqiang Ma、Fuhai Liu、Ruize Ma、Jipeng Zhao、Xingang Xie、Xuegong She
DOI:10.1039/d2ob01110g
日期:——
/acyl migration/aromatization reaction was developed, which enabled the rapid construction of indole-fused 8–10 membered lactones starting from cyclic 2-allyl-2-(2-nitrophenyl)-1,3-diketones. A nitro substituent in the substrates acted as both an oxygen source in the Mukaiyama hydration step and a nitrogen source in a tandem indole ring construction step. Our reaction features mild conditions, atom