| 摘要 |
PCT No. PCT/EP91/00322 Sec. 371 Date Sep. 2, 1992 Sec. 102(e) Date Sep. 2, 1992 PCT Filed Feb. 21, 1991 PCT Pub. No. WO91/13863 PCT Pub. Date Sep. 19, 1991.In a method for preparing 3-nitrobenzene sulphonic acid chloride from nitrobenzene and chlorosulphonic acid, nitrobenzene is reacted with chlorosulphonic acid at approximately 90 DEG to approximately 120 DEG C. and an inorganic acid chloride is then allowed to act on the resultant reaction mixture at approximately 40 DEG to approximately 90 DEG C. |
