1394135-62-6Relevant articles and documents
4-methyl-1-(2-(phenylsulfonyl)ethyl)-2,6,7-trioxabicyclo[2.2.2]octane
Di Maso, Michael J.,Peter, Michael A.St.,Shaw, Jared T.
, p. 328 - 341 (2016/08/23)
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Synthesis of 6,6′-binaphthopyran-2-one natural products: Pigmentosin A, talaroderxines A and B
Grove, Charles I.,Di Maso, Michael J.,Jaipuri, Firoz A.,Kim, Michelle B.,Shaw, Jared T.
supporting information, p. 4338 - 4341 (2013/01/14)
Efficient and stereoselective syntheses of pigmentosin A, talaroderxine A, and its diastereomer talaroderxine B are reported. The binaphthyl ring system is assembled by vanadium-catalyzed phenolic coupling of tricyclic precursors. These key intermediates were prepared by Michael-Dieckmann annulation of a protected orsellinate ester, with the requisite pyranones accessed by a new variant of Ghosez's sulfone-epoxide annulation. Preliminary biological experiments are reported for pigmentosin.