نتایج جستجو برای: primary amines

تعداد نتایج: 660093  

Journal: :Macromolecules 2021

Epoxies are often cured using primary and secondary amines in an efficient reaction catalyzed by tertiary amines. Through coordination effects, lower the transition-state energy enough to allow take place under ambient conditions. In this paper, we demonstrate how, conditions, bound close intramolecular proximity a amine able catalyze amine-epoxy reactions as well promote etherifications epoxy-...

Journal: :SynOpen 2023

A three-component coupling reaction of ortho-phthalaldehyde, 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide, and various primary amines readily afforded novel phosphorus-substituted stable isoindoles in good to excellent yields. The importance the reversible ring-opening 10-oxide by methanolysis became apparent.

Journal: :Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2010

Journal: :The Journal of the Society of Chemical Industry, Japan 1964

2012
George Sosnovsky

Over the years, methods have been developed for the preparation of quaternary ammonium compounds, which are important as organic intermediates, detergents, insecticides, bacteriostats, and drugs [1, 2]. The most common method for preparation of these compounds is by alkylation of tertiary amines [3, 4]. Primary and secondary amines have also been quaternized, albeit less frequently [3, 4], due ...

2011
Phil Jackson Keith J. Fisher Moetaz Ibrahim Attalla

The reaction between CO(2) and aqueous amines to produce a charged carbamate product plays a crucial role in post-combustion capture chemistry when primary and secondary amines are used. In this paper, we report the low energy negative-ion CID results for several anionic carbamates derived from primary and secondary amines commonly used as post-combustion capture solvents. The study was perform...

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