89002-94-8Relevant articles and documents
"Syn-Effect" in the Desilylation Reaction of γ-Silylated Allylic and Vinylic Sulfones
Guha, Samar Kumar,Ukaji, Yutaka,Inomata, Katsuhiko
, p. 1158 - 1159 (2007/10/03)
The desilylation reaction of γ-silylated allylic sulfones was found to proceed through γ-silylated (E)-vinylic sulfones to afford the corresponding allylic sulfones by treatment with DBU and H2O. The Z/ E ratio of the resulting allylic sulfones varied according to the γ-substituents of the γ-silylated sulfones. This stereo-chemical outcome was rationalized by "syn-effect".
Regio- and Stereoselective Synthesis of (E)- and (Z)-Vinylic Sulfones and Their Conversion to the Corresponding Allylic Sulfones
Kobayashi, Toshifumi,Tanaka, Yuhji,Ohtani, Takashi,Kinoshita, Hideki,Inomata, Katsuhiko,Kotake, Hiroshi
, p. 1209 - 1212 (2007/10/02)
(E)- and (Z)-vinilyc sulfones were prepared regio- and stereoselectively from 1-alkenes or 1-alkynes in high yields via iodosulfonization in AcOEt-H2O.The vinylic sulfones thus prepared were converted to the corresponding allylic sulfones by treatment wit
1,3-REARRANGEMENT OF ALLYLIC P-TOLYL SULFONES CATALYZED BY AND ITS APPLICATION TO THE SYNTHESIS OF α,β-UNSATURATED KETONES
Inomata, Katsuhiko,Murata, Yasue,Kato, Hisatoyo,Tsukahara, Yuhko,Kinoshita, Hideki,Kotake, Hiroshi
, p. 931 - 934 (2007/10/02)
The treatment of allylic p-tolyl sulfones with a catalytic amount of gave the 1,3-rearrangement products in high yields.A conveient method for the preparation of α,β-unsaturated ketones using as a catalyst from the 1,3-rearrangemen
