Regioselective lactonization of unsymmetrical 1,4-diols: an efficient access to lactone lignans
作者:Masato Ito、Akira Shiibashi、Takao Ikariya
DOI:10.1039/c0cc04926c
日期:——
eta(5)-C(5)(CH(3))(5)) with a suitably-designed PN ligand (PN = chelating tertiary phosphine-protic amine ligand) has been developed for a regioselective lactonization of unsymmetrically substituted 1,4-diols, which may provide an expeditious access to a variety of lactone lignans.
A novel catalytic method for the straightforward hydrogenation of carboxamides and esters to primary alcohols has been developed. Chiral modification in the ligand sphere of the well-defined Cp*Ru catalyst molecule opens up a new possibility for the development of an enantioselective hydrogenation of racemic substrates via dynamic kinetic resolution.
Substituted γ-Lactones. I. Preparation of α-Substituted γ-Butyrolactones by Condensation of γ-Butyrolactone with Aldehydes. Hydrogenation of the Condensation Products
作者:HANS ZIMMER、JOHANNES ROTHE
DOI:10.1021/jo01083a009
日期:1959.1
DE, DIBYENDU;SETH, M.;BHADURI, A. P., INDIAN J. CHEM. B, 29,(1990) N, C. 70-71
作者:DE, DIBYENDU、SETH, M.、BHADURI, A. P.
DOI:——
日期:——
De, Dibyendu; Seth, M; Bhaduri, A P, Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1990, vol. 29, # 1, p. 70 - 71