Patent ID: 6207863
Filing Date: 2001-03-27
Classification: C07C

Abstract:
A process for preparing haloformimines of the formula ##STR3##wherein:X, X.sup.1.dbd.halo;Y.dbd.halo, CO.sub.2 R.sup.1, CX.sup.1 (.dbd.NR), C(O)NR.sup.10 R.sup.11 ;R.dbd.OR.sup.2, NR.sup.3 R.sup.4, N.dbd.CR.sup.5 R.sup.6 ;R.sup.2.dbd.H, C(O)R.sup.7, (C.sub.1 -C.sub.18)alkyl, substituted (C.sub.1 -C.sub.18)alkyl, (C.sub.7 -C.sub.10)aralkyl, substituted (C.sub.7 -C.sub.10)aralkyl, phenyl, substituted phenyl;R.sup.3 and R.sup.4 are independently selected from: (C.sub.1 -C.sub.18)alkyl, substituted (C.sub.1 -C.sub.18)alkyl, (C.sub.7 -C.sub.10)aralkyl, substituted (C.sub.7 -C.sub.10)aralkyl, phenyl, substituted phenyl;R.sup.5 and R.sup.6 are independently selected from: H, halo, CO.sub.2 R.sup.1, (C.sub.1 -C.sub.18)alkyl, substituted (C.sub.1 -C.sub.18)alkyl, (C.sub.7 -C.sub.10)aralkyl, substituted (C.sub.7 -C.sub.10)aralkyl, phenyl, substituted phenyl;R.sup.7.dbd.(C.sub.1 -C.sub.18)alkyl, substituted (C.sub.1 -C.sub.18)alkyl, (C.sub.7 -C.sub.10)aralkyl, substituted (C.sub.7 -C.sub.10)aralkyl, phenyl, substituted phenyl, NR.sup.8 R.sup.9 ;R.sup.1, R.sup.8, R.sup.9, R.sup.10 and R.sup.11 are independently selected from: H, (C.sub.1 -C.sub.18)alkyl, substituted (C.sub.1 -C.sub.18)alkyl, (C.sub.7 -C.sub.10)aralkyl, substituted (C.sub.7 -C.sub.10)aralkyl, phenyl, substituted phenyl;wherein the process comprises combining a formimine compound with a solvent and sufficient base to provide a mixture having a pH in the range of 2 to 5, followed by reacting said formimine mixture with a halogenating agent to produce a haloformimine compound, while maintaining the pH of the mixture in the range of 2 to 5.