CAS: 570-24-1; 2-Methyl-6-Nitroaniline

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CAS号95-53-4 邻甲苯胺 | CAS号59907-22-1 2’-甲基-6’-硝基乙酰苯胺 | CAS号120-66-1 乙酰邻甲苯胺 | CAS号99-08-1 3-硝基甲苯 | CAS号602-01-7 2,3-二硝基甲苯 | CAS号3299-62-5 N,N-bis(2-methy... | CAS号591-09-3 nitro acetate | CAS号7664-41-7 氨 | CAS号7664-93-9 硫酸 | CAS号124-41-4 甲醇钠 | CAS号316810-90-9 3-溴-1H-吲唑-7-胺 | CAS号3970-40-9 2-氯-3-硝基甲苯 | CAS号316810-82-9 5-溴-7-硝基-1H-吲唑 | CAS号41085-43-2 2-溴-3-硝基甲苯 | CAS号59907-22-1 2’-甲基-6’-硝基乙酰苯胺 | CAS号606-18-8 2-氨基-3-硝基苯甲酸 | CAS号56043-01-7 2-氨基-6-甲基苯腈 | CAS号5170-68-3 2,1,3-苯并硫杂二唑-4-甲醛 | CAS号945762-00-5 7-氰基-3-溴-1H-吲唑 | CAS号945761-94-4 7-碘-1H-吲唑

2-氨基甲苯-5-磺酸置于溶剂黄146,Zinc(II) Oxide,硝酸,盐酸体系中,用 水 作为反应溶剂,化学反应 7.0H,以82%的收率获得产物ar-甲基-Ar-硝基苯胺
参考文献:一种合成2-氨基-3-硝基甲苯的方法
标题:一种合成2-氨基-3-硝基甲苯的方法
摘要:本发明提供了一种合成2‑氨基‑3‑硝基甲苯的方法,所述方法为:将原料4‑氨基‑3‑甲基苯磺酸,氧化锌,乙酸混合,在25~100oc下反应4H,然后硅藻土过滤,滤液冷却至0~12°C,滴加浓硝酸,滴加期间控制体系温度在0~12°C,滴完后维持温度反应30Min,接着将反应液倒入冰水中,抽滤,所得固体为硝化产物;将硝化产物与浓盐酸混合,升温至回流水解1H,之后反应液经后处理,得到产物2‑氨基‑3‑硝基甲苯;本发明提高了反应的选择性,优化了后处理方法,减轻了环保压力,避免环境污染,并且有效提高了目标产物的收率和纯度.

专利信息

专利号:US-6541653-B2
优先权日:2001-04-26
标题 :Synthesis of carbamate through low pressure heterogeneous oxidative carbonylation of amines
发明人：CHUANG STEVEN S C; CHI YAWU; CHEN BEI; TOOCHINDA PISANU
摘要:The process disclosed herein satisfies the need in the art for an industrially viable oxidative carbonylation catalytic system, and is capable of producing carbamates at a significantly higher rate than those processes reported in journal and patent literature. This reaction process takes place via a reaction mechanism that does not involve drastic conditions. Specifically, the catalytic system of the present invention employs Group VIII metal catalysts and/or copper-based catalysts with halide promoters to produce carbamates through heterogeneous oxidative carbonylation at atmospheric pressure and relatively non-drastic temperatures in a gas-solid carbonylation process.

专利号:US-2002183541-A1
优先权日:2001-04-26
标题:Synthesis of carbamate through low pressure heterogeneous oxidative carbonylation of amines

专利号:US-8012220-B2
优先权日:2006-04-13
标题 :Specific monocationic monochromophoric compounds of hydrazone type comprising a 2-, 4-pyridinium or 2-, 4-quinolinium unit, synthesis thereof, dye compositions containing them, and method for dyeing keratin fibres
发明人：DAVID HERVE; MURGUET NADEGE; GREAVES ANDREW
权利人:OREAL
摘要:The present disclosure relates to monocationic monochromophoric compounds of formula (I) and (II) and dyeing compositions and multicompartment devices comprising monocationic monochromophoric compounds of formula (I) and (II). The disclosure also relates to methods for preparing monocationic monochromophoric compounds of formula (I) and (II), and also to methods for dyeing comprising applying monocationic monochromophoric compounds of formula (I) and (II) to keratin fibers.

专利号:CN-1520394-A
优先权日:2001-04-26
标 题 :Synthesis of carbamates via low-pressure heterogeneous oxidative carbonylation of amines

专利号:CN-1228317-C
优先权日:2001-04-26
标题:Synthesis of carbamates via low-pressure heterogeneous oxidative carbonylation of amines

专利号:WO-02088050-A2
优先权日:2001-04-26
标 题:Synthesis of carbamate through low pressure heterogeneous oxidative carbonylation of amines