Intramolecular Sakurai Allylation of Geminal Bis(silyl) Enamide with Indolenine. A Diastereoselective Cyclization To Form Functionalized Hexahydropyrido[3,4-b]Indole
Highly regioselective iridium-catalyzed and samarium-promoted coupling of allylic carbonates with ketones: a new approach towards homoallylic alcohols
作者:Wei Liu、Liang Zhang、Weikang Yang、Xiaoming Zhao
DOI:10.1039/c3ra43199a
日期:——
A highlyregioselective Ir-catalyzed and Sm-promoted coupling of allyliccarbonates with ketones has been realized, which provides the homoallylic alcohols in up to 89% yields. This strategy gives a convenient method for the synthesis of liquid crystals with a mono-fluorinated quaternary carbon chain.
Electrochemical carboxylation of benzylic carbonates was successfully performed as an alternative method for the synthesis of phenylacetic acids by using a one-compartment cell equipped with a Pt plate cathode and an Mg rod anode in CH3CN to afford the corresponding phenylacetic acids in good yields.
Iridium‐Catalyzed Propenylation Reactions for the Synthesis of 4‐Pyridone Derivatives
作者:Xue‐dan Bai、Jie Wang、Ying He
DOI:10.1002/adsc.201801177
日期:2019.2
propenylation reaction of allylic carbonates with 4‐hydroxypyridine derivatives. The process efficiently provides 4‐pyridone derivatives with high stereoselectivities under mild conditions. The products could constitute valuable building blocks for the synthesis of natural products and other bioactive molecules. Preliminary mechanistic studies indicated that a tandemallylic substitution/isomerization
Enantioselective α-Functionalization of 1,3-Dithianes by Iridium-Catalyzed Allylic Substitution
作者:Panpan Wang、Qian Jiang、Ruibo Zhao、Xingang Xie、Shouchu Tang、Xiaolei Wang
DOI:10.1021/acs.joc.0c01683
日期:2020.10.2
iridium-catalyzed asymmetric allylicsubstitution reaction with 2-alkoxy carbonyl-1,3-dithianes has been achieved with high regio- and enantioselectivities. The transformation provides a new method for the enantioselective α-functionalization of dithianes. The corresponding dithiane-containing products are easily converted into many other derivatives with high yields and enantioselectivities.
Enantioselective Synthesis of CF<sub>3</sub>S-Containing Compounds via Ir-Catalyzed Allylic Alkylations of CF<sub>3</sub>S-Substituted Functionalized Methylene Derivatives
作者:Tao Song、Xiaoming Zhao、Xiaolin Wang
DOI:10.1021/acs.joc.9b02123
日期:2019.12.6
Enantioselective Ir-catalyzed allylicalkylations of CF3S-substituted functionalized methylene derivatives are established under mild conditions. This method provides the CF3S-containing branched products in good to high yields with high regio- and enantioselectivities.