Asymmetric allylic alkylation of acyclic allylic ethers with organolithium reagents
A highly efficient, regio- and enantioselective CuI/ phosphoramidite-catalyzed asymmetric allylic alkylation of allyl ethers with organolithium reagents is reported (see scheme). The use of organolithium reagents is essential for this catalytic C-C bond formation due to their compatibility with different Lewis acids. The versatility of allylic ethers under the copper-catalyzed reaction conditions with organolithium reagents is demonstrated in the shortest synthesis of (S)-Arundic acid. Copyright
Pérez, Manuel,Fa?anás-Mastral, Martín,Hornillos, Valentín,Rudolph, Alena,Bos, Pieter H.,Harutyunyan, Syuzanna R.,Feringa, Ben L.
supporting information
p. 11880 - 11883
(2012/10/29)
Reduction of acetylenic compounds to (E)-olefins by alkali metals - An investigation of the scope
Efficient procedures have been developed for the stereospecific reduction by alkali metals of disubstituted acetylenes with long carbon chains. Acetylenes containing two or more (isolated) triple bonds are reduced considerably more easily than are monoyne
Brandsma, Lambert,Nieuwenhuizen, Willem F.,Zwikker, Jan W.,Maeeorg, Uno
p. 775 - 779
(2007/10/03)
A SIPLIFIED WITTIG SYNTHESIS USING SOLID/LIQUID TRANSFER PROCESSES II- The use of K2CO3 for the synthesis of alkenes from aromaric and aliphatic aldehydes
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Le Bigot, Y.,Delmas, M.,Gaset, A.
p. 107 - 112
(2007/10/02)
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