Highly efficient reduction of ferrocenyl derivatives by borane
作者:Lucie Routaboul、Jérôme Chiffre、Gilbert G.A. Balavoine、Jean-Claude Daran、Eric Manoury
DOI:10.1016/s0022-328x(01)00936-6
日期:2001.12
Borane, as a DMS or a THF complex, can efficiently reduce a large range of ferrocenyl derivatives (aldehydes, ketones, ethers, acetals, carboxylic acids, esters,…) if they bear at least one oxygen at a carbon at the α position. On the contrary, similar molecules, which contain nitrogen instead of oxygen, do not react with borane.
Synthesis of Optically Pure <i>o</i>-Formylcyclopentadienyl Metal Complexes of 17α-Ethynylestradiol. Recognition of the Planar Chirality by the Estrogen Receptor
methoxymethyldioxane and p-tolylsulfoxide, as well as trimethylsilyl as a temporary blocking group. A cross-coupling reaction between these precursors and 17α-ethynylestradiol led to the formation of the hormone complexes. The ferrocenyl hormone compounds were only obtained from a Sonogashira reaction, the cyrhetrenyl compounds were only formed by using a Stille reaction, and the cymantrenyl compounds were obtained