C07C37/045

Process for making 2,5-dihalogenated phenol

The present invention relates to a process for reacting chemical compounds comprising the step of reacting a compound of formula (IV) ##STR00001##
wherein Hal is independently selected from Cl or Br, and X.sup.? is a monovalent anion, in the presence of an inorganic acid, wherein the aqueous inorganic acid has a concentration of at least about 60%, at a temperature of about 140? C. to about 250? C., to obtain a compound of formula (V) ##STR00002##
wherein Hal is as defined above.

Process for making 2,5-dihalogenated phenol

The present invention relates to a process for reacting chemical compounds comprising the step of reacting a compound of formula (IV) ##STR00001##
wherein Hal is independently selected from Cl or Br, and X.sup.? is a monovalent anion, in the presence of an inorganic acid, wherein the aqueous inorganic acid has a concentration of at least about 60%, at a temperature of about 140? C. to about 250? C., to obtain a compound of formula (V) ##STR00002##
wherein Hal is as defined above.

Processes for the diazotization of 2,5-dichloroanilines

The present disclosure relates, in general, to processes for converting 2,5-dichloroaniline compounds to the corresponding 2,5-dichlorobenzenediazonium compounds, and further relates to processes for the preparation of 2,5-dichlorophenol which is a key intermediate used in the manufacture of dicamba.

Processes for the diazotization of 2,5-dichloroanilines

The present disclosure relates, in general, to processes for converting 2,5-dichloroaniline compounds to the corresponding 2,5-dichlorobenzenediazonium compounds, and further relates to processes for the preparation of 2,5-dichlorophenol which is a key intermediate used in the manufacture of dicamba.

PROCESSES FOR THE DIAZOTIZATION OF 2,5-DICHLOROANILINES

The present disclosure relates, in general, to processes for converting 2,5-dichloroaniline compounds to the corresponding 2,5-dichlorobenzenediazonium compounds, and further relates to processes for the preparation of 2,5-dichlorophenol which is a key intermediate used in the manufacture of dicamba.

PROCESSES FOR THE DIAZOTIZATION OF 2,5-DICHLOROANILINES

The present disclosure relates, in general, to processes for converting 2,5-dichloroaniline compounds to the corresponding 2,5-dichlorobenzenediazonium compounds, and further relates to processes for the preparation of 2,5-dichlorophenol which is a key intermediate used in the manufacture of dicamba.

Processes for the diazotization of 2,5-dichloroanilines

The present disclosure relates, in general, to processes for converting 2,5-dichloroaniline compounds to the corresponding 2,5-dichlorobenzenediazonium compounds, and further relates to processes for the preparation of 2,5-dichlorophenol which is a key intermediate used in the manufacture of dicamba.

Processes for the diazotization of 2,5-dichloroanilines

The present disclosure relates, in general, to processes for converting 2,5-dichloroaniline compounds to the corresponding 2,5-dichlorobenzenediazonium compounds, and further relates to processes for the preparation of 2,5-dichlorophenol which is a key intermediate used in the manufacture of dicamba.

Process for Making 2,5-Dihalogenated Phenol

The present invention relates to a process for reacting chemical compounds comprising the step of reacting a compound of formula (IV) wherein Hal is independently selected from CI or Br, and X is a monovalent anion, in the presence of an inorganic acid, wherein the aqueous inorganic acid has a concentration of at least about 60%, at a temperature of about 140 C. to Cabout 250 C., to obtain a compound of formula (V) wherein Hal is as defined above.

##STR00001##

Process for Making 2,5-Dihalogenated Phenol

The present invention relates to a process for reacting chemical compounds comprising the step of reacting a compound of formula (IV) wherein Hal is independently selected from CI or Br, and X is a monovalent anion, in the presence of an inorganic acid, wherein the aqueous inorganic acid has a concentration of at least about 60%, at a temperature of about 140 C. to Cabout 250 C., to obtain a compound of formula (V) wherein Hal is as defined above.

##STR00001##