Novel olefination process to itaconate and succinate derivatives
申请人:——
公开号:US20020058832A1
公开(公告)日:2002-05-16
An efficient and selective process, capable of scale-up, to make itaconate derivatives of formula (IV), and/or succinate derivatives of formula (V) and/or (VI) by asymmetric hydrogenation of the itaconate derivatives.
1
C−I-Selective Cross-Coupling Enabled by a Cationic Palladium Trimer
作者:Claudia J. Diehl、Thomas Scattolin、Ulli Englert、Franziska Schoenebeck
DOI:10.1002/anie.201811380
日期:2019.1.2
air‐stable Pd trimer and presents unambiguous reactivity data of its privileged capability to differentiate C−I over C−Br bonds in C−C bond formations (arylation and alkylation) of polyhalogenated arenes, which typical Pd0 and PdI‐PdI catalysts fail to deliver. Experimental and computational reactivity data, including the first location of a transition state for bond activation by the trimer, are presented
尽管人们越来越关注在催化中利用一种以上金属的协同效应,但除双金属体系外,人们所知甚少。该报告描述了直接进入空气稳定的Pd三聚体的方法,并提供了明确的反应性数据,该数据具有在多卤代芳烃的C-C键形成(芳构化和烷基化)中区分C-1与C-Br键的特权。0和Pd I -Pd I催化剂无法输送。给出了实验和计算反应性数据,包括三聚体激活键的过渡态的第一个位置,支持直接的三聚体反应性是可行的。
Palladium catalyzed α-arylation of methyl isobutyrate and isobutyronitrile: an efficient synthesis of 2,5-disubstituted benzyl alcohol and amine intermediates
作者:Rupa Shetty、Kristofer K. Moffett
DOI:10.1016/j.tetlet.2006.09.059
日期:2006.11
benzyl alcohols containing a functionalized t-butyl moiety were synthesized via palladium catalyzed α-arylation of methyl isobutyrate and butyronitrile on synthetically useful scales. The resulting benzyl alcohols could then be further elaborated to benzyl amines or other desirable intermediates.
Compounds of formula (I):
or pharmaceutically acceptable salts thereof, or solvates of either entity, wherein the substituents have the values described herein, are useful as matrix metalloprotease (MMP) inhibitors
There is disclosed a compound having Formula I or Formula I': In Formula I and Formula I': Ar1 and Ar2 are the same or different and are aryl groups; R1 through R5 are independently the same or different at each occurrence and are D, F, alkyl groups, aryl groups, alkoxy groups, silyl groups, or crosslinkable groups; R6 is H, D, or halogen; a through e are independently an integer from 0 to 4; f is 1 or 2; g is 0, 1 or 2; h is 1 or 2; and n is an integer greater than 0.