Synthese potentieller Squalenepoxidase-Hemmer mit konformativer Fixierung der Strukturelemente desButenafins
作者:Peter Stanetty、Herbert Wallner
DOI:10.1002/ardp.19933260607
日期:——
Es wird über die Syntheseder Naphthalinmethanamine 6b‐h berichtet, bei denen zur konformativen Fixierung Substituenten mit zunehmendem Raumerbedarf in die α‐Position eingeführt wurden. Da die reduktive Aminierung der Naphthylalkanone 3 mit den Aminen 9 bzw. 10 nun sehr beschränkt einsetzbar war, wurden als geeignete Zwischenprodukte zunächst α‐substituierte Naphthalinmethanamine 2 und 4 auf verschiedenen
Immobilized palladium metal containing ionic liquid catalyzed one step synthesis of isoindole-1,3-diones by carbonylative cyclization reaction
作者:Mayur V. Khedkar、Ajinkya R. Shinde、Takehiko Sasaki、Bhalchandra M. Bhanage
DOI:10.1016/j.molcata.2014.01.018
日期:2014.4
Immobilized palladium metal containing ionicliquid (ImmPd-IL) catalyzed carbonylative cyclization reaction of 2-iodobenzoic acid and primary amine provided N-substituted isoindole-1,3-dione derivatives in good to excellent yield. The influence of various reaction parameters including the effect of base, solvent, temperature, time and CO pressure on carbonylative cyclization reaction using ImmPd-IL catalyst
The mechanochemical N-alkylation of imide derivatives was studied. Reactions undersolvent-freeconditions in a ball mill gave good yields and could be put in place of the classical solution conditions. The method is general and can be applied to various imides and alkyl halides. Phthalimides prepared under ball milling conditions were used in a mechanochemical Gabriel synthesis of amines by their
Poly-β-peptides from functionalized β-lactam monomers and antibacterial compositions containing same
申请人:WISCONSIN ALUMNI RESEARCH FOUNDATION
公开号:US10323121B2
公开(公告)日:2019-06-18
Disclosed is a method of making β-polypeptides. The method includes polymerizing β-lactam-containing monomers in the presence of a base initiator and a co-initiator which is not a metal-containing molecule to yield the product β-polypeptides. Specifically disclosed are methods wherein the base initiator is potassium t-butoxide, lithium bis(trimethylsilyl)amide (LiN(TMS)2), potassium bis(trimethyl-silyl)amide, and sodium ethoxide, and the reaction is carried out in a solvent such as chloroform, dichloromethane, dimethylsulfoxide, or tetrahydrofuran.
AbstractWe describe here a convenient and mild, carbon monoxide gas‐free palladium‐catalyzed procedure to obtain N‐substituted phthalimides with molybdenum hexacarbonyl as carbon monoxide precursor. These conditions tolerate a number of functional groups on the benzene ring as well as a number of amines and give the corresponding phthalimides in good to excellent yields.magnified image