Patent ID: 6147258
Filing Date: 2000-11-14
Classification: C07C

Abstract:
A process for preparing substituted guanidine derivatives of the formula I, ##STR5## which comprises reacting calcium cyanamide with a primary or secondary amino carboxylic acid or a primary or secondary amino sulfonic acid or derivatives thereof, of the formula II ##STR6## where the substituents R.sup.1 and R.sup.2 have, independently of one another, the following meanings: R.sup.1 H, C.sub.1 --C.sub.20 -alkyl; R.sup.2 --(C.sub.1 --C.sub.20 -alkylene)--COOR.sup.3, --(C.sub.1 --C.sub.20 -alkylene)--CONR.sup.4 R.sup.5, --(C.sub.1 --C.sub.20 -alkylene)--CN, --(C.sub.1 --C.sub.20 -alkylene)--SO.sub.2 R.sup.6; R.sup.3 H, C.sub.1 --C.sub.20 -alkyl, C.sub.2 --C.sub.10 -alkenyl, C.sub.3 --C.sub.8 -cycloalkyl, C.sub.6 --C.sub.18 -aryl, Na, K, Li, Ca, Mg, N(R.sup.1).sub.4 ; R.sup.4 and R.sup.5 independently of one another H, C.sub.1 --C.sub.20 -alkyl, C.sub.2 --C.sub.10 -alkenyl, C.sub.3 --C.sub.8 -cycloalkyl, C.sub.6 --C.sub.18 -aryl; R.sup.6 OR.sup.7, N(R.sup.8).sub.2 ; R.sup.7 H, C.sub.1 --C.sub.20 -alkyl, C.sub.2 --C.sub.10 -alkenyl, C.sub.3 --C.sub.8 -cycloalkyl, C.sub.6 --C.sub.18 -aryl, Na, K, Li, Ca, Mg, N(R.sup.1).sub.4 ; R.sup.8 H, C.sub.1 --C.sub.20 -alkyl, C.sub.2 --C.sub.10 -alkenyl, C.sub.3 --C.sub.8 -cycloalkyl, C.sub.6 --C.sub.18 -aryl.