Dsm Fine Chemicals Austria Nfg Gmbh & Co. Kg

Metadynea Austria Gmbh

Esim Chemicals Gmbh

Krems Chemie Chemical Services Ag

Thomas Zich

Michael Ciesielski

Martina Kotthaus

Rolf Marr

Peter Pöchlauer

Wolfgang Schiek

Christian Seifter

Markus R&ouml;ssler

Bettina Burk

Manfred Doring

Bernadette Mehofer

Fritz Johann Freidl

Martin Deak

Martin Vorbach

Matthew John Schwarzkopf

Michael David Burnard

Marica Mikuljan

Manfred Döring

Johannes Artner

Michael Hönel

Gilbert Zwick

Muriel Rakotomalala

The invention relates to a method for carrying out reactions with participation of carbocations, whereby the initial most strongly exothermic phase of the reaction is carried out at high temperature (60 to 120&#xb0; C.) and short residence time (1 to 30 seconds) in a microreactor and the subsequent less exothermic phases are carried out at optionally lower temperatures in two or more residence time units with longer residence times (1 to 30 seconds).

Stepwise execution of exothermic reactions with participation of carbocations

A method for producing compounds of formula (I) in which the radical Ris selected from &#x2014;NH, &#x2014;NHAz, and monovalent alkyl and aryl radicals, the radicals A are selected in each case independently of one another from the phosphoryl radicals DOPO-, DPhPO- and DPhOPO-, and the indices x, y and z, in each case independently of one another, stand for 0 or 1, wherein at least one of the indices is &#x2260;0, by reacting, in a first step, melamine or, when Ris an alkyl or aryl radical, the corresponding alkyl or aryl guanamine, with one or more of the corresponding phosphinyl chlorides DOP-CI, DPhP-Cl and DPhOP-CI, in order to bond one or more phosphinyl radicals to the amino groups(s) of the melamine or guanamine, and in a second step oxidizing the phosphinyl radical(s) by reaction with an oxidizing agent to give the corresponding phosphoryl radical(s).

Method for producing phosphorus-containing flame retardants

Preparation of substituted pyridine N-oxide compounds

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Linz, Austria

Thomas Zich