Pd(0)-Catalyzed Hydrogenolysis of Allylic and Dienylic Cyclic Carbonates: Synthesis of Optically Active Homoallylic Alcohols and Allylic Alcohols
作者:Suk-Ku Kang、Dong-Chul Park、Ho-Sik Rho、Chan-Mo Yu、Jang-Hoo Hong
DOI:10.1080/00397919508010808
日期:1995.1
Abstract Treatment of chiral allyliccycliccarbonates with ammonium formate in the presence of Pd(0) catalyst afforded optically active homoallylic alcohols with excellent regioselectivity. However, hydrogenolysis of dienyliccycliccarbonates in the presence of Pd(0) catalyst afforded conjugated or nonconjugated (E)-dienylic alcohols depending on Pd complexes used. Using homoallylic alcohol 3c as
Ruthenium-Catalyzed Allylic Substitution of Allylic Cyclic Carbonates
作者:Suk-Ku Kang、Dae-Yeun Kim、Ryung-Kee Hong、Pil-Su Ho
DOI:10.1080/00397919608004631
日期:1996.9
Abstract Allylicsubstitution of allyliccycliccarbonates with PhSH or PhOH in the presence of CpRu(PPh3)2Cl (5 mol %) afforded (E)-allylic alcohol and erythro-β-hydroxy thiophenoxide or phenoxide respectively, via external attack of nucleophiles to π-allyl ruthenium complex.
Neutral alkylation of chiral allylic cyclic carbonates catalyzed by palladium complex
作者:Suk-Ku Kang、Sung-Gyu Kim、Jang-Sup Lee
DOI:10.1016/s0957-4166(00)82096-0
日期:1992.9
The cyclic carbonates of acyclic vinyl diols react with nucleophiles in the presence of a palladium complex as a catalyst under neutral conditions to afford alkylated (E)-allylic alcohols with highly regio-, and diastereoselectivity. This reaction represents an efficient 1,3-chirality transfer method.