[EN] CHEMICAL PROCESSES AND COMPOUNDS DERIVED THEREFROM<br/>[FR] PROCÉDÉS CHIMIQUES ET COMPOSÉS DÉRIVÉS DE CEUX-CI
申请人:UNIV MONASH
公开号:WO2006012683A1
公开(公告)日:2006-02-09
The present invention relates to N-substituted anilines and derivatives thereof and in particular to chemical processes for the preparation of N-substituted anilines and derivatives thereof.
本发明涉及N-取代苯胺及其衍生物,特别是用于制备N-取代苯胺及其衍生物的化学过程。
Rediscovering aminal chemistry: copper(<scp>ii</scp>) catalysed formation under mild conditions
作者:Juliana G. Pereira、João P. M. António、Ricardo Mendonça、Rafael F. A. Gomes、Carlos A. M. Afonso
DOI:10.1039/d0gc01977a
日期:——
aldehyde lithiation. Nevertheless, the existing methodologies for their formation typically employ harsh conditions limiting their usefulness. In this work, we present an efficient and mild methodology for the preparation of aminals from aromatic aldehydes, including furanic platforms. These mildconditions allowed ease of access to a plethora of aminals and as such we set out to explore previously unaccessible
α-Acetylstyrylphosphonates were conveniently synthesized from 2-oxopropylphosphonates and substituted (dimorpholinomethyl)-benzenes (aminals). 4-Benzylidenemorpholinium carboxylates, generated from aminals by the action of α-halo acids, reacted with the phosphonates to give the products by elimination of the amine. The yields were influenced by the nature of substituents and their position in the phenyl ring and could be improved by adjustment of the acidities of the reacted acids. α-Acetylstyrylphosphonates containing various substituents on every position (at the 2-, 3-, or 4-position) in the phenyl ring were obtained generally in excellent yields using monochloroacetic acid.
A NEW PROTOCOL FOR THE PREPARATION OF AMINALS FROM AROMATIC ALDEHYDES AND THEIR FACILE CONVERSION TO PHOSPHONATES
作者:Mohammad Karimi Dezfuli、Mohammad Reza Saidi
DOI:10.1080/10426500490257078
日期:2004.1
A new and fast method for the preparation of aminals is reported from the reaction of aromaticaldehydes and secondary amines in the presence of potassium carbonate in high yields. The aminal can be converted to the corresponding iminum salt in reaction with acetyl chloride very easily and in very short time with high yield. Addition of trialkylphosphite, as one possible nucleophile, to the prepared
Synthesis of 3-(aminomethyl)pyridine by traceless C3-selective umpolung of 1-amidopyridin-1-ium salts
作者:Pingsheng Tang、Dehai Xiao、Bo Wang
DOI:10.1039/c6cc09582h
日期:——
A natural product inspired rapid access of 3-(aminomethyl)pyridine by one-pot reaction of 1-amidopyridin-1-ium salt with aminal followed by reductive cleavage of the N-N bond is developed. This C3-selective formal C-H...