Ligand‐Controlled Regiodivergence in Nickel‐Catalyzed Hydroarylation and Hydroalkenylation of Alkenyl Carboxylic Acids**
作者:Zi‐Qi Li、Yue Fu、Ruohan Deng、Van T. Tran、Yang Gao、Peng Liu、Keary M. Engle
DOI:10.1002/anie.202010840
日期:2020.12.14
the ligand environment around the metal center dictates the regiochemical outcome. Markovnikov hydrofunctionalization products are obtained under mild ligand‐free conditions, with up to 99 % yield and >20:1 selectivity. Alternatively, anti‐Markovnikov products can be accessed with a novel 4,4‐disubstituted Pyrox ligand in excellent yield and >20:1 selectivity. Both electronic and stericeffects on the
Pd(<scp>ii</scp>)/Zn co-catalyzed chemo-selective hydrogenation of α-methylene-γ-keto carboxylic acids
作者:Xuexin Zhang、Yang Gao、Ronibala Devi Laishram、Kangkui Li、Yong Yang、Yong Zhan、Yang Luo、Baomin Fan
DOI:10.1039/c9ob00005d
日期:——
An efficient Pd/Zn co-catalyzed chemo-selective hydrogenation of α-methylene-γ-keto carboxylic acids is described. This methodology offers a divergent synthesis of α-methyl-γ-keto carboxylic acids, α-methylcarboxylic acids, and lactones starting from α-methylene-γ-keto carboxylic acids via selectivehydrogenation by varying the catalytic conditions avoiding the use of high pressure of hydrogen. The
Carboxylic Acid-Directed Manganese(I)-Catalyzed Regioselective Hydroarylation of Unactivated Alkenes
作者:Jingqiang Han、Huimin Yu、Weiwei Zi
DOI:10.1021/acs.orglett.2c02309
日期:2022.8.26
acid-directed regioselective hydroarylation reaction of unactivated alkenes with aryl boronic acids was reported. This transformation was enabled by homogeneous manganese catalyst MnBr(CO)5 in the presence of KOH and H2O in the m-xylene reaction medium. Both internal and terminal alkenes worked well in this transformation, and a series of functional groups were tolerated. This reaction not only provided an expeditious
报道了未活化烯烃与芳基硼酸的羧酸定向区域选择性加氢芳基化反应。在间二甲苯反应介质中存在 KOH 和 H 2 O的情况下,通过均相锰催化剂 MnBr(CO) 5实现了这种转化。内部和末端烯烃在这种转化中都表现良好,并且可以耐受一系列官能团。该反应不仅为从简单的起始原料制备γ-芳基羧酸提供了一种快速的方法,而且还将激发在有机合成中采用均相锰催化的进一步研究。
[EN] IONIZABLE CATIONIC LIPIDS FOR RNA DELIVERY<br/>[FR] LIPIDES CATIONIQUES IONISABLES POUR L'ACHEMINEMENT D'ARN
申请人:ARCTURUS THERAPEUTICS INC
公开号:WO2023086514A1
公开(公告)日:2023-05-19
The present disclosure describes compounds of Formula (I) and pharmaceutically acceptable salts thereof.