AN IMPROVED PROCESS FOR PREPARING SULFONAMIDES

• Main Authors: BINGHAM, JR.,ALPHEUS, PIRKLE, WILLIAM HOWARD
• Format: Patent
• Language: English; Korean
• Published: 22.12.1986
• Edition: 4
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

Prepn. of a sulphonamide of formula R1SO2NH2 (I) comprises contact of an organometallic compd. R1M (II) with SO2 to give an organo sulphinate metal salt. followed by reaction of this salt with Cl2 or Br2 to give a sulphonyl halide deriv. and treatment of the deriv. with NH3 In (I), R1=C1-10 alkyl, o...