萘（naphthalene），是简单的稠环芳烃，化学式为C10H8，是由2个苯环共用2个相邻碳原子稠合而成，广泛用作制备染料、树脂、溶剂等的原料，也用作驱虫剂。下面精萘厂家为您分析：

Naphthene, a simple polycyclic aromatic hydrocarbon with the chemical formula C10H8, is formed by the fusion of two adjacent carbon atoms shared by two benzene rings. It is widely used as a raw material for the preparation of dyes, resins, solvents, and other insecticides. The following refined naphthalene manufacturers will analyze for you:

1、萘的氧化反应

1. Oxidation reaction of naphthalene

温和氧化剂得醌，强烈氧化剂得酸酐。萘环比侧链更易氧化，所以不能用侧链氧化法制萘甲酸。电子云密度高的环易被氧化。例如α-硝基萘氧化得3-硝基邻苯二甲酸酐，α-萘胺氧化得邻苯二甲酸酐（氨基所在的环被氧化）。

A mild oxidant yields quinone, while a strong oxidant yields anhydride. Naphthalene rings are more easily oxidized than side chains, so side chain oxidation cannot be used to produce naphthoic acid. The rings with high density of Electron cloud are easy to be oxidized. for example α- Nitro naphthalene is oxidized to 3-nitro Phthalic anhydride, α- Naphthylamine is oxidized to Phthalic anhydride (the ring of amino group is oxidized).

2、萘的还原反应（加成反应）

2. Reduction of naphthalene (Addition reaction)

萘可与5个氢气加成生成十氢化萘。

Naphthalene can be added with 5 hydrogen to form Decalin.

3、萘的亲电取代反应

3. Electrophilic substitution of naphthalene

萘的α-位比β-位更易发生亲电取代反应。α-位取代两个共振式都有完整的苯环。β-位取代只有一个共振式有完整的苯环。

Naphthalene α- Bitwise ratio β- The Electrophilic substitution is more likely to occur in the. α- Both resonance formulas have a complete benzene ring. β- There is only one resonance formula with a complete benzene ring in place of a substitution.

在萘环上主要发生亲电取代，同苯环一样（易取代，难加成），但活性比苯环强。

The electrophilic substitution mainly occurs on the naphthalene ring, similar to the benzene ring (easy to replace, difficult to add), but with stronger activity than the benzene ring.

从中间对称的两个C旁边的C开始标（中间的两个碳不编号），其中1，4，5，8号碳活性完全一样（称为α碳），2，3，6，7号碳性质完全一样（称为β碳）。

Starting from the C next to the symmetrical two Cs in the middle (the two carbons in the middle are not numbered), where the activity of carbons 1, 4, 5, and 8 is exactly the same (referred to as α Carbon), carbon numbers 2, 3, 6, and 7 have identical properties (referred to as β Carbon).

一般情况下，α碳活性大于β碳，取代基在α位上，这是由动力学控制，温度较高时，α碳上取代基会转移到β碳上。

In general, α Carbon activity greater than β Carbon, substituent in α In terms of position, this is controlled by dynamics. When the temperature is high, α The substituents on carbon will transfer to β On carbon.

但在萘的弗瑞德-克来福特酰基化反应，不加热却生成了α位和β位的混合物。如用硝基甲烷为溶剂，则主要生成β酰化产物。还有怎样的疑惑或者需求，随时来我们网站http://www.jnjdbc.cn咨询了解！

But in the Friedel-Crafterford acylation reaction of naphthalene, it was generated without heating α Bitwise sum β A mixture of bits. If Nitromethane is used as solvent, it mainly generates β Acylation products. Feel free to come to our website for any further doubts or needs http://www.jnjdbc.cn Consultation and understanding!