878381-37-4Relevant articles and documents
A Negishi cross-coupling reaction enables the total synthesis of (+)-stachyflin
Haut, Franz-Lucas,Speck, Klaus,Wildermuth, Raphael,M?ller, Kristof,Mayer, Peter,Magauer, Thomas
, p. 3348 - 3357 (2018/03/06)
We present a full account on the development of the total synthesis of the antiviral meroterpenoid (+)-stachyflin. The decalin subunit is rapidly accessed by an exo-selective Diels–Alder reaction, whereas the isonindolinone was synthesized via a highly efficient and practical de novo route starting from dimedone. A challenging sp2–sp3 Negishi cross-coupling reaction enabled construction of the crucial C15–C16 bond that connects the arene with the decalin subunit. For the final installation of the cis-decalin framework, a Lewis acid-catalyzed cyclization was applied.
Conversion of Torgov's synthesis of estrone into a highly enantioselective and efficient process
Yeung, Ying-Yeung,Chein, Rong-Jie,Corey
, p. 10346 - 10347 (2008/03/12)
A very direct and efficient conversion of the achiral Torgov diketone into the natural form of O-methyl estrone is described. Copyright
Baker's yeast mediated mono-reduction of 1,3-cyclohexanediones bearing two identical C(2) substituents
Wei, Zhi-Liang,Li, Zu-Yi,Lin, Guo-Qiang
, p. 229 - 233 (2007/10/03)
Baker's yeast mediated transformation of a series of 1,3-cyclohexanediones with two identical substituents at C(2) was investigated and the results of the biotransformation were found to depend on the size of the substituents at C(2). 1,3-Cyclohexanediones with less sterically demanding C(2) substituents could be mono-reduced to provide the corresponding ketols in good yields and excellent enantiomeric excesses.