Nosylaziridines are highly reactive electrophiles towards a variety of nucleophiles yielding the corresponding SN2 adducts without competing attack on the nosyl functionality (SNAr). The resulting primary nosylamide adducts can be readily cleaved under mild conditions to provide the primary amines. (C) 1997 Elsevier Science Ltd.
The invention relates to a process for preparing certain amines, wherein, in a first step, a corresponding amino alcohol is reacted with a suitable carbonyl compound and then, in a second step, the intermediate obtained in the first step is reacted with a suitable amine component to form the desired amine.
An amine of formula (I) which is particularly suitable for use as a curing agent for epoxy resins. The amine of formula (I) is devoid of non-incorporable toxic phenols, and is low-viscosity and pale in colour. It allows the production of easily-workable, low-emission or emission-free epoxy resin products which cure rapidly even at relatively low ambient temperatures thus obtaining a high degree of hardness and a nice surface with hardly any yellowing. This is particularly suited to use in floor or top coatings.
An amidine containing at least one structural unit of the formula (I) and the use thereof as catalyst for the crosslinking of a functional compound, especially of a polymer having silane groups. The amidine is preparable in a simple process from readily available starting materials, is largely odorless at room temperature and is of low toxicity. It accelerates the crosslinking of functional compounds surprisingly efficiently and can be adjusted for optimal compatibility with different compositions via the radical to which the structural units of the formula (I) is bonded, which means that such compositions do not have a tendency to migration-related defects such as separation, exudation or substrate soiling.
2-aminoarylmethylamine solid support templated for preparation of highly functionalized heterocycle compounds
申请人:——
公开号:US20020032262A1
公开(公告)日:2002-03-14
A solid support template for the preparation of highly functionalized heterocycle compounds of the formula;
1
一种固体支撑模板,用于制备公式为1的高度功能化杂环化合物。
AMIN FÜR EMISSIONSARME EPOXIDHARZ-ZUSAMMENSETZUNGEN
申请人:Sika Technology AG
公开号:EP3138864A1
公开(公告)日:2017-03-08
Die vorliegende Erfindung betrifft die Verwendung eines Amins der Formel (I) als Härter für Epoxidharze. Das Amin der Formel (I) ist niedrigviskos und geruchsarm, mit üblichen Epoxidharzen überraschend gut verträglich und verdünnt diese gut. Härter enthaltend das Amin der Formel (I) weisen eine sehr hohe Reaktivität auf, bleiben aber überraschenderweise trotzdem weitgehend frei von Blushing. Mit dem Amin der Formel (I) sind emissionsarme Epoxidharz-Zusammensetzungen zugänglich, welche gut verarbeitbar sind, rasch aushärten und qualitativ hochstehende Kunststoffe bilden.