the products observed is proposed. The structures of 1a–d were elucidated by spectroscopic analyses of their acetate salts. The structure of compound 1e was also confirmed by X-ray crystallography using its sulfate salt. The X-raystructure provided strong evidence of extensive electron delocalization within the triguanide core despite its non-planar structure. In addition, the effect of tautomerism
描述了从相应的单取代胍衍生物和二异丙基碳二亚胺开始的新五取代三胍 1a-e 的一锅合成,并提出了观察到的产物的形成机制。通过对其乙酸盐的光谱分析阐明了 1a-d 的结构。化合物 1e 的结构也通过 X 射线晶体学使用其硫酸盐得到证实。尽管其非平面结构,但 X 射线结构提供了三胍核内广泛电子离域的有力证据。此外,还详细讨论了互变异构对反应过程的影响,重点是导致副产物的可能反应路径。最后,在体外评估了新制备的化合物的醋酸盐对五种癌细胞系的抗增殖作用。发现 1a-c 的醋酸盐表现出很强的细胞抑制和细胞毒活性,其中对苄基衍生物 1c 的醋酸盐观察到的效果最强。
Rapid-curing, migration-free composition based on organic polymers containing silane groups
申请人:SIKA TECHNOLOGY AG
公开号:US10100069B2
公开(公告)日:2018-10-16
The invention relates to a composition comprising at least one organic polymer that contains silane groups and at least one catalyst of formula (I). The composition is low in emissions and low-odor, has a good shelf-life, cures rapidly to form a mechanically high-quality, durable material with a very low propensity for migration-related defects such as exudation or dirt retention by the substrate. The composition is particularly suitable for use as an adhesive, sealant or coating.
SCHNELL HÄRTENDE MIGRATIONSFREIE ZUSAMMENSETZUNG AUF BASIS VON SILANGRUPPEN-HALTIGEN ORGANISCHEN POLYMEREN
申请人:Sika Technology AG
公开号:EP3131994A1
公开(公告)日:2017-02-22
RAPID-CURING, MIGRATION-FREE COMPOSITION BASED ON ORGANIC POLYMERS CONTAINING SILANE GROUPS
申请人:SIKA TECHNOLOGY AG
公开号:US20170037191A1
公开(公告)日:2017-02-09
The invention relates to a composition comprising at least one organic polymer that contains silane groups and at least one catalyst of formula (I). The composition is low in emissions and low-odour, has a good shelf-life, cures rapidly to form a mechanically high-quality, durable material with a very low propensity for migration-related defects such as exudation or dirt retention by the substrate. The composition is particularly suitable for use as an adhesive, sealant or coating.
[DE] SCHNELL HÄRTENDE MIGRATIONSFREIE ZUSAMMENSETZUNG AUF BASIS VON SILANGRUPPEN-HALTIGEN ORGANISCHEN POLYMEREN<br/>[EN] RAPID-CURING, MIGRATION-FREE COMPOSITION BASED ON ORGANIC POLYMERS CONTAINING SILANE GROUPS<br/>[FR] COMPOSITION À BASE DE POLYMÈRES ORGANIQUES À GROUPES SILANE, SANS MIGRATION ET À DURCISSEMENT RAPIDE
申请人:SIKA TECHNOLOGY AG
公开号:WO2015158863A1
公开(公告)日:2015-10-22
Die vorliegende Erfindung betrifft eine Zusammensetzung umfassend - mindestens ein Silangruppen-haltiges organisches Polymer, und - mindestens einen Katalysator der Formel (I). Die Zusammensetzung ist emissions- und geruchsarm, weist eine gute Lagerfähigkeit auf, härtet rasch aus und bildet dabei ein mechanisch hochwertiges und beständiges Material, welches kaum zu migrationsbedingten Fehlern wie Ausschwitzen oder Substratverschmutzung neigt. Sie eignet sich insbesondere als Klebstoff, Dichtstoff oder Beschichtung.