5-Chloroorthanilic acid synthesis
- Product Name:5-Chloroorthanilic acid
- CAS Number:133-74-4
- Molecular formula:C6H6ClNO3S
- Molecular Weight:207.63
110-01-0
206 suppliers
$10.00/5g
7664-93-9
6 suppliers
$21.64/1003
106-47-8
472 suppliers
$5.00/5 g
133-74-4
120 suppliers
$15.00/100mg
Yield:-
Steps:
14 EXAMPLE 14
EXAMPLE 14 127.6 g (1.0 mol) of p-chloroaniline are initially introduced at 85° C. into 500 ml of sulpholane, and 98.1 g (1.0 mol) of 100% strength H2 SO4 are added dropwise in the course of 10 minutes, during which period the temperature increases to 123° C. The brown solution is heated to 172° C., and the reaction water is distilled off under a reduced pressure of 130-150 mm Hg and at a temperature of 172°-196° C. The suspension is cooled to 160° C. and its solids are filtered off with suction. The yield of 2-amino-5-chlorobenzenesulphonic acid is 95.7%.
References:
Siemens-Allis, Inc. US4447368, 1984, A
2942-10-1
80 suppliers
$32.00/100mg
133-74-4
120 suppliers
$15.00/100mg
539-03-7
309 suppliers
$10.00/5 g
133-74-4
120 suppliers
$15.00/100mg
106-47-8
472 suppliers
$5.00/5 g
133-74-4
120 suppliers
$15.00/100mg
