Electrophilically activated nitroalkanes in reaction with aliphatic diamines en route to imidazolines
作者:Alexander V. Aksenov、Nicolai A. Aksenov、Nikolai A. Arutiunov、Vladimir V. Malyuga、Sergey N. Ovcharov、Michael Rubin
DOI:10.1039/c9ra08630g
日期:——
A novel synthetic methodology for the assembly of imidazolines via an unusual reaction between nitroalkanes and aliphatic 1,2-diamines in the presence of phosphorous acid is described. In contrast to the related highly efficient preparation of benzimidazoles from aromatic amines, this process represents a major synthetic challenge and for a long time was elusive. Analysis of the method limitations
GRUSECK, URSULA;HEUSCHMANN, MANFRED, CHEM. BER., 120,(1987) N 12, 2053-2064
作者:GRUSECK, URSULA、HEUSCHMANN, MANFRED
DOI:——
日期:——
PRODUIT ISOLANT COMPRENANT DES FIBRES MINÉRALES ET UN LIANT
申请人:SAINT-GOBAIN ISOVER
公开号:EP3724143A1
公开(公告)日:2020-10-21
Sizing composition for an insulating product based on mineral wool, and resulting products
申请人:Espiard Philippe
公开号:US20070077425A1
公开(公告)日:2007-04-05
The invention relates to a sizing composition for a thermal and/or acoustic insulation product, based on mineral wool, comprising an epoxy resin of the glycidyl ether type, an amine hardener and an accelerator chosen from imidazoles, imidazolines and mixtures thereof. Application to the manufacture of thermal and/or acoustic insulation products having improved mechanical properties after aging, especially in a wet environment.