A new vanadium-pillared montmorillonite catalyst for the regioselective epoxidation of allylic alcohols
作者:B. M. Choudary、V. L. K. Valli、A. Durga Prasad
DOI:10.1039/c39900000721
日期:——
Unusual regioselectivity towards internal allylic double bonds in preference to terminal allylic double bonds is displayed using the newly synthesized vanadium-pillaredmontmorillonitecatalyst.
Ir-Catalyzed Regiocontrolled Allylic Amination of Di-/Trienyl Allylic Alcohols with Secondary Amines
作者:Shengbiao Tang、Ziyong Li、Ying Shao、Jiangtao Sun
DOI:10.1021/acs.orglett.9b02435
日期:2019.9.20
An unprecedented regio-controllable allylic amination of unactivated dienyl and trienyl allylic alcohols has been developed, providing an efficient approach toward the site-selective formation of C1-, C3-, and C5-/C7-amination products from the sole substrates. Key to this protocol is the use of secondary amines as the amination reagents, as well as the presence of an iridium catalyst and scandium
Palladium-catalyzed regiocontrolled and stereoselective alkylations of bis(trifluoroethyl) malonates with dienyl alcohols
作者:James M. Takacs、Xun-tian Jiang、Alexei P. Leonov
DOI:10.1016/s1268-7731(03)00074-2
日期:2003.9
The triethylborane-promoted and palladium-catalyzed reactions of 2,4-dienyl alcohols or the corresponding isomeric divinyl alcohols with bis(trifluoroethyl) malonates provide an improved method for the regio- and stereoselective dienylation of malonates. The phosphine ligand is an important control element in the reaction. Combinations of Pd(OAc)(2) with BIPHEP or BINAP give dienylated malonates in good yield and higher isomeric purity than the traditional combination of Pd(OAc)(2) and Ph3P affords in the catalyzed reactions of dienyl acetates. (C) 2003 Elsevier Ltd. All rights reserved.
CHOUDARY, B. M.;VALLI, V. L. K.;PRASAD, A. DURGA, J. CHEM. SOC. CHEM. COMMUN.,(1990) N, C. 721-722
作者:CHOUDARY, B. M.、VALLI, V. L. K.、PRASAD, A. DURGA