Differentially Substituted Phosphines via Decarbonylation of Acylphosphines
作者:Rongrong Yu、Xingyu Chen、Stephen F. Martin、Zhiqian Wang
DOI:10.1021/acs.orglett.7b00579
日期:2017.4.7
A new route to phosphines was developed by a method that features a “pre-join and transform” process that proceeds via acylphosphine intermediates that may be readily prepared from carboxylic acids and disubstituted phosphines. The efficient decarbonylations of these acylphosphines using a nickel catalyst delivered the corresponding phosphines. This method shows that the carboxyl group can play a role
[EN] THERAPEUTIC COMPOUNDS: PYRIDINE AS SCAFFOLD<br/>[FR] COMPOSES THERAPEUTIQUES DANS LESQUELS LA PYRIDINE EST UTILISEE COMME SQUELETTE
申请人:ASTRAZENECA AB
公开号:WO2005115986A1
公开(公告)日:2005-12-08
Compounds of formulas I, IA, and IB or IC or pharmaceutically acceptable salts thereof: wherein A, A1, A2, A3, A4, R2, R3, R4 and n are as defined in the specifications well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.
Eine einfache Methode zur Herstellung von Benzoxazolen
作者:Zdenek Seha、Claus D. Weis
DOI:10.1002/hlca.19800630212
日期:1980.3.5
A Facile Method for the Synthesis of Benzoxazoles
一种简便的合成苯并恶唑的方法
A Palladium-Catalyzed Multicomponent Coupling Approach to π-Conjugated Oligomers: Assembling Imidazole-Based Materials from Imines and Acyl Chlorides
作者:Ali R. Siamaki、Marc Sakalauskas、Bruce A. Arndtsen
DOI:10.1002/anie.201100558
日期:2011.7.11
like tinkertoys: An alternative approach to access imidazole‐containing π‐conjugatedmaterials is presented. The imidazole core was assembled at the same time as the oligomer by the palladium‐catalyzed multicomponent coupling of imines, diimines, and di(acyl chloride)s, thus providing access to families of new conjugatedmaterials, each formed in a one‐step, catalytic reaction (see scheme; Ts=4‐toluenesulfonyl)
A Versatile Approach to Dynamic Amide Bond Formation with Imine Nucleophiles
作者:Huseyin Erguven、Evan N. Keyzer、Bruce A. Arndtsen
DOI:10.1002/chem.202001140
日期:2020.5.4
the reversible coupling of imines and acyl chlorides. The reaction employs easily accessible reagents, is dynamic under ambient conditions, without catalysts, and can be trapped with simple hydrolysis. This offers an approach to create broad families of amide products under thermodynamic control, including the selective formation of amide macrocycles or polymers.