CAS号 [98-18-0] 生产工艺 间氨基苯磺酰苯胺
CAS名: Benzenesulfonamide, 3-amino-, 参考文献: Beil. 14, 690. E3, 1908.
用途: 有机合成。
生产工艺文献:
BIOS 1153, 109-110. (=胶卷PB 85687) m-Aminobenzenesulphonamide. 英国人译自德文。抄录如下。
反应式: 本人有加注。其中含国内研究合成工艺反应式。
Plant: 1 Reducer, 7,000 l., with heating coil. 1
Press for iron oxide. 1 Iron vat, 10,000 l., agitated, with steam
coil.
1 Iron brick-lined nutsche. 1 Measure vessel 8,000 l.
Materials: 560 kg. m-Nitrobenzenesulphonamide 100%. 500 kg. Iron powder. 290
kg. Hydrochloric acid 30%.
136 kg. Caustic soda 100%. 15 kg. Activated carbon. 1.2 kg. Sodium bisulphite 40% solution.
Process:
The reduction vessel is charged with 1000 l. of water,
500 kg. of iron powder, and enough hydrochloric acid to give a reaction for
soluble iron, and heated with direct steam to 70-800C. The
nirobenzenesulphonamide is added slowly, the heat reaction carrying the
temperature up to 950C. Reductioon is continued at this temperature,
a little hydrochloric acid being added from time to time to maintain the
reaction. When reaction is complete, 200 l. of 50% caustic soda liquor are
added to make alkaline, and the iron oxide filtered out through the press, and
washed with water. Total bulk of liquor is now 2,000 l. It is cooled to 500C.,
and 240 l. of 30% hydrochloric acid are added until just not alkaline. After
cooling with agitation to 350C. a further 20 l. of 30% hydrochloric
acid are added to make acid to Congo. It is cooled further to 20-250C.,
and the precipitated crystals filtered off on a nutsche, washed and dried.
Yield: 81% theory.
中文摘译文。张澍声。《精细化工中间体工业生产技术》1996年。P. 63. 译自BIOS 1153。抄录如下。
在7000 L还原反应器内加入1000 L水,500 kg铁粉和足够使铁粉溶解的盐酸,直接蒸汽加热至70-800C,缓缓加入硝基苯磺酰胺,反应热使温度升至950C. 在此温度继续还原,随时加入少量盐酸以保持反应。当反应完成后,加入200 L50% NaOH溶液使呈碱性。通过压滤机(本人抄注: Nutsche 是抽滤槽 –应该是抽滤)过滤出氧化铁,并水洗,总液体体积为2000 L.冷却到500C,加入240 L30%盐酸至刚果红不呈碱性。搅拌冷却到350C,再冷却到20-250C,抽滤沉淀出的结晶,水洗干燥。产品收率81%。
国内研究动态:
李宗文 杨锦宗(大工)活性固色染料和固色剂的合成及其应用性能的研究。[J]染料工业, 1990, 5, 39. 摘录如下。
一,实验部分。(1)间氨基苯磺酰胺的合成:(它由间氨基苯磺酸合成,反应式见上,该刊物未写出反应式!)
于125毫升三口瓶中加入10毫升氯磺酸,在搅拌下慢慢加入4.4克间氨基苯磺酸,溶解后加入3毫升氯化亚砜,慢慢升温,缓慢倒入冰水中析出产物,过滤。将滤饼加入25毫升浓氨水中,搅拌均匀后于室温保持3小时,再升温至500C保持1小时, 最后赶走氨气,中和溶液至中性,得产品2.4克。
粗产品用乙醇重结晶得到乳白色菱状晶体,熔点139.5 -1420C,经元素定量分析的结果如下:
测定值 C% 41.71. H% 4.63. N%
16.24. S% 18.44
计算值 41.78. 4.64. 16.25. 18.57.
加注: 这是新的合成方法,但文中未提及氯磺酸和氯化亚砜对苯环上氨基得影响?
陈忠源 2017年1月22日 于 无锡 明辉国际。