107913-73-5Relevant academic research and scientific papers
Transition metal mediated synthesis of some prenylated phytoalexins of Morus alba Linn.
Mann,Widdowson,Clough
, p. 7991 - 8000 (2007/10/02)
Directed functionalisation of resorcinol and benzofuran rings was achieved by activation with a coordinated tricarbonylchromium(O) unit and vicinal or remote lithiation directed by methoxy or t-butyldiphenylsilyloxy groups respectively. The process was applied either before [to the geranylbenzofuran (16) for mulberrofuran B (5)] or after [for moracin C (2)] palladium catalysed coupling of the 2-stannylated benzofuran and the 5-iodinated resorcinol moieties. In addition moracin I (14) was synthesised by a Stille coupling of the stannylated benzofuran (6) with the phloroglucinol triflate (14). Application to the synthesis of albafuran A (3) gave, unexpectedly, the 3-geranylbenzofuran (11).
Total Synthesis of (+/-)-5-O-Methyllicoricidin
Shih, Thomas L.,Wyvratt, Matthew J.,Mrozik, Helmut
, p. 2029 - 2033 (2007/10/02)
A novel intramolecular Mitsunobu alkylation is employed to construct the benzopyran moiety of the newly isolated isoflavan 5-O-methyllicoricidin.This convergent 15-step total synthesis outlines a chemically mild approach to the acid-sensitive isoflavanoid
