Method of making hydroxymethylphosphonate, polyurethane foam-forming compositions, polyurethane foam and articles made therefrom
申请人:Stowell Jeffrey
公开号:US20100160468A1
公开(公告)日:2010-06-24
A method of making hydroxymethylphosphonate comprising heating paraformaldehyde in a solvent to a desired reaction temperature, wherein the solvent is present in at least an amount necessary to solvate or suspend the paraformaldehyde; adding at least one alkyl phosphite to the heated paraformaldehyde, to provide hydroxymethylphosphonate, the alkyl phosphite being added to the heated paraformaldehyde at a rate which will avoid or inhibit the production of a significant exotherm and resulting high/significant level of acid by-product(s), there being present in the reaction medium at least one hindered amine catalyst in which the nitrogen in the amine is directly bound to a secondary and/or tertiary carbon of an organic group; and, optionally, following the completion of the addition, heating the reaction mixture to an elevated temperature.
[EN] METHOD OF MAKING HYDROXYMETHYLPHOSPHONATE, POLYURETHANE FOAM-FORMING COMPOSITIONS POLYURETHANE FOAM AND ARTICLES MADE THEREFORM<br/>[FR] MÉTHODE DE FABRICATION DE PHOSPHONATE D'HYDROXYMÉTHYLE, COMPOSITIONS DE POLYURÉTHANE MOUSSANTES, MOUSSE POLYURÉTHANE ET ARTICLES FABRIQUÉS À PARTIR DE LADITE MOUSSE
申请人:SUPRESTA LLC
公开号:WO2010080425A1
公开(公告)日:2010-07-15
A method of making hydroxymethylphosphonate comprising heating paraformaldehyde in a solvent to a desired reaction temperature, wherein the solvent is present in at least an amount necessary to solvate or suspend the paraformaldehyde; adding at least one alkyl phosphite to the heated paraformaldehyde, to provide hydroxymethylphosphonate, the alkyl phosphite being added to the heated paraformaldehyde at a rate which will avoid or inhibit the production of a significant exotherm and resulting high/significant level of acid by-product(s), there being present in the reaction medium at least one hindered amine catalyst in which the nitrogen in the amine is directly bound to a secondary and/or tertiary carbon of an organic group; and, optionally, following the completion of the addition, heating the reaction mixture to an elevated temperature.
METHOD OF MAKING HYDROXYMETHYLPHOSPHONATE, POLYURETHANE FOAM-FORMING COMPOSITIONS, POLYURETHANE FOAM AND ARTICLES MADE THEREFROM
申请人:ICL-IP AMERICA INC.
公开号:US20140378564A1
公开(公告)日:2014-12-25
There is provided herein a method of making hydroxymethylphosphonate comprising reacting paraformaldehyde, at least one dialkyl phosphite and at least one trialkyl phosphite, in the presence of at least one amine catalyst.
Verfahren zur Herstellung von Anthrachinonderivaten
申请人:BASF Aktiengesellschaft
公开号:EP0382053A2
公开(公告)日:1990-08-16
Herstellung von Anthrachinonderivaten der allgemeinen Formel I (Al-CO-NH-)nA² I
in der A¹ und A² Anthrachinon-Reste und/oder anthrachinoide Reste bedeuten und n für 1 oder 2 steht, durch Umsetzung der Anthrachinoncarbonsäuren oder ihrer Derivate der allgemeinen Formel II A¹-COX II
in der X für eine Hydroxylgruppe oder ein Chlor- oder Bromatom steht, mit einem Aminoanthrachinon der allgemeinen Formel III A²(NH₂)n III
in Gegenwart einer tertiären Stickstoffbase, indem man als tertiäre Stickstoffbase eine solche Base verwendet, die weder selber N-heteroaromatisch ist, noch eine aromatische oder heteroaromatische Gruppe enthält, die unmittelbar an das N-Atom gebunden ist, und mit der Ausnahme von Triethylamin im Falle der Umsetzung in Benzoesäuremethylester als Lösungsmittel.
制备通式 I (Al-CO-NH-)nA² I 的蒽醌衍生物
将通式 II A¹-COX II 的蒽醌羧酸或其衍生物(其中 A¹ 和 A² 为蒽醌基和/或蒽醌基,n 为 1 或 2)与氨基蒽醌衍生物(其中 X 代表羟基或氯原子或溴原子)反应,制备通式 I 的蒽醌衍生物。
其中 X 代表羟基或氯原子或溴原子,与通式 III A²(NH₂)n III 的氨基蒽醌反应
在三级氮基存在下,使用本身既不是 N-杂芳香族,也不含有与 N 原子直接键合的芳香族或杂芳香族基团的三级氮基,但以苯甲酸甲酯为溶剂进行反应时使用三乙胺除外。