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- Vicarious nucleophilic substitution (VNS) of hydrogen is a new type of reaction which is differ-ent from the usual electrophilic and nucleophilic reactions of the nitro arenes. 氢的替代亲核取代反应(VNS)是与硝基芳环的亲电反应、亲核反应不同的一种新反应.;将VNS与硝基芳环的亲电反应、亲核反应做比较;阐述了VNS的定义;
- Keywords vicarious substitute;vicarious nucleophilic substitution of hydrogen;nitro arene;nitro het-eroaromatic;amination; 替代取代;氢的替代亲核取代反应;硝基芳环;硝基杂芳环;胺化反应;
- nitro arene 硝基芳环
- Nitro Boosts: Now have a 5-second duration. 硝基推进器现在有5秒持续时间。
- You are an American, aren not you? 你是一名美国人,是吗?
- Enable nitro >>>get one nitro-pack. 使硝基“”>“获取一个硝基包。
- There aren’t any tigers here, you say? “这里没有老虎啊,你说呢?
- You aren' t wanted here, so shove off ! 这儿不需要你, 走开!
- Children' s shoes aren' t cheap quite the reverse. 儿童的鞋并不便宜--反而更贵.
- Aren''t you a religion or a rival to religion? 你们是否宗教或宗教的竞争者?
- No, there aren"t vegetable and fruit. 不,没有蔬菜和水果。
- A: Both are alcoholic cocktails, aren"t they? 两杯含酒精的鸡尾酒,对吗?
- Tricky tactics aren’t just for rogues anymore. 狡猾的手段不再是盗贼的专利了。
- Those shorts are nice, aren they? 那些短裤很不错,不是吗?
- Emily Appleton: You e a treasure hunter, aren you? 艾米丽?阿普尔顿:你是一个寻宝专家,不是吗?
- The silent Malaysian, Aren’t you Angry ? 沉默的马来西亚人, 你不觉得愤怒吗?
- Opportunities forgone aren’t always easy to see. 预料之中的机会并不总是容易被发现。
- Online chatters aren’t always so harmless. 网聊者并不都是正人君子。
- Calves, demi-calves, goats, open grain bufles, nitro leathers. 本产品适合于小牛皮,半小牛皮,山羊皮,裂痕皮,硝化皮等
- Yes, they are. /No, they aren ’t. 是的,他们在踢。/不,他们没在踢。
