Ferreira, J. Albert; Nel, Janetta W.; Brandt, E. Vincent, Journal of the Chemical Society. Perkin transactions I, 1995, # 8, p. 1049 - 1056
作者:Ferreira, J. Albert、Nel, Janetta W.、Brandt, E. Vincent、Bezuidenhoudt, Barend C. B.、Ferreira, Daneel
DOI:——
日期:——
Oligomeric isoflavonoids. Part 4.† Synthesis of the daljanelin class of isoflavonoid–neoflavonoid dimers
作者:Mark B. Rohwer、Pieter S. van Heerden、E. Vincent Brandt、Barend C. B. Bezuidenhoudt、Daneel Ferreira
DOI:10.1039/a904944d
日期:——
A protocol of introducing an electrophilic C1 fragment to a pterocarpan nucleus, followed by anionic coupling of a C6âC2 benzofuranoid precursor and late introduction of the final C6 fragment, permitted the syntheses of daljanelins B 3 and D 5. The feasibility of introducing the same electrophilic C1 fragment to C-2 of the pterocarpan moiety to obtain a precursor to daljanelin A 2 was also demonstrated.
将亲电子 C1 片段引入到紫檀核中,然后进行 C6-C2 苯并呋喃类前体的阴离子偶联,最后引入最终的 C6 片段的方案,允许合成 daljanelins B 3 和 D 5。还证明了与紫檀素部分的 C-2 具有相同的亲电子 C1 片段以获得 daljanelin A 2 的前体。