Basf Aktiengesellschaft

Thomas Greindl

Alfred Oftring

Birgit Potthoff-Karl

Richard Baur

Gerold Braun

Alexander Kud

Rolf Schneider

Juergen Schneider

Klaus Mundinger

Knut Kessel

Michael Kluge

Roland Ettl

Manfred Julius

Jochen Wild

Juergen Detering

Guenter Oetter

G&uuml;nter Scherr

Thomas Bogenst&auml;tter

Rainer Rahm

Georg Schuh

Norbert Biedermann

Wolfgang Reuther

Wolfgang Trieselt

Volker Schwendemann

Thomas Fetzer

Michael Ehle

Hubert Meixner

Matthias Rauls

Elisabeth Kappes

Ulrich Steuerle

Angelika Funhoff

Wolfgang Gunther

Michael Kneip

Georg Krug

Beate Ehle

Wolfgang G&uuml;nther

Wilhelmus Slotman

Friedrich Wirsing

Wolfgang H&auml;hnlein

Richard Van Gelder

Rainer Betz

Dieter Kiessling

The invention relates to a continuous process, carried out in two steps, for the cyanoalkylation of compounds having one or more NH functions by reaction thereof with carbonyl compounds and hydrocyanic acid, in which the first step is carried out without pressure at a temperature which is below the boiling point of the reaction mixture.

Continuous process for the cyanoalkylation of compounds having one or more NH functions

A process for the preparation of creatine or creatine monohydrate by reaction of sodium or potassium sarcosinate with cyanamide at a temperature from 20 to 150&deg; C. and a pH from 7.0 to 14.0 comprises carrying out the pH adjustment with carbonic acid.

Process for the preparation of creatine or creatine monohydrate

Fuel and lubricant additives

Method for producing long-chain glycine-N,N-diacetic acid derivatives

A process for preparing compounds of the formula IIb

A process for the preparation of an O-alkylisourea of the formula I,

Preparation on an O-alkylisourea

Substituted guanidine derivatives of the formula I ##STR1## are prepared by reacting calcium cyanamide with a primary or secondary amino carboxylic acid or a primary or secondary amino sulfonic acid or their derivatives of the formula II ##STR2## where the substituents R.sup.1 and R.sup.2 have the meanings explained in the description.

Preparation of substituted guanidine derivatives

A process for preparing guanidine derivatives, in particular creatine, is described and entails an O-alkylisourea salt and a primary or secondary amine being reacted in the presence of crystals of a guanidine derivative.

Process for preparing guanidine derivatives

Substituted guanidine derivatives of the formula I ##STR1## are prepared by a) converting urea into an alkylated isourea of the formula II ##STR2## and b) reacting the alkylated isourea with a primary or secondary amine of the formula III ##STR3## where the substituents R.sup.1, R.sup.2 and R.sup.10 have the meanings explained in the description.

Modified, fine-particle, water-insoluble aziridine polymer and use

Glycine-N,N-diacetic acid derivatives and their alkali metal, alkaline earth metal, ammonium and substituted ammonium salts are used as complexing agents for alkaline earth metal and heavy metal ions with the exception of .alpha.-alanine-N,N-diacetic acid as textile detergent builders in powder detergent formulations and as calcium sequestrants in oral hygiene products.

Use of glycine-N, N-diacetic acid derivatives as biodegradable

Use of glycine-N,N-diacetic acid derivatives as biodegradable complexing

Substituted guanidine derivatives of the formula I, ##STR1## are prepared by reacting haloformamidinium salts of the formula II, ##STR2## where Hal can be Cl, F, Br and I, with primary or secondary amines of the formula III ##STR3## where the substituents R.sup.1 and R.sup.2 have the meanings explained in the description.

Preparation of substituted guanidine derivative

Solid textile detergent formulation comprising inorganic builders,

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Neuburg, Germany

Thomas Greindl