2,5-ジクロロ安息香酸

化学名:2,5-ジクロロ安息香酸

CAS番号.50-79-3

英語名:2,5-Dichlorobenzoic acid

CBNumberCB7121450

MFC7H4Cl2O2

MW191.01

别名

2,5-ジクロロ安息香酸

2，5ジクロロ安息香酸

ジクロル安息香酸

2,5-ジクロロ安息香酸物理性質

安全性情報

危険有害性情報のコード(GHS)

外観
白色～ほとんど白色粉末～結晶
化学的特性
Needle crystals or white crystalline powder. Soluble in ethanol and ether, soluble in hot water. Some volatilize in the vapor.
使用
2,5-Dichlorobenzoic acid was used as calibration standard to investigate the gas-phase OH reaction products of biphenyl, monochlorobiphenyl and dichlorophenyl
主な応用
2,5-Dichlorobenzoic acid is used in organic synthesis and pesticide intermediates. It is used to synthesize herbicides chloramben, 2,5-Dichloro-3-nitrobenzoic acid, etc. The pesticide has less phytotoxicity and is not affected by rainy days.
製造方法
2,5-Dichlorobenzoic acid is obtained by reacting p-dichlorobenzene with phosgene to obtain 2,5-dichlorobenzoyl chloride, which is then hydrolyzed.
定義
ChEBI: 2,5-dichlorobenzoic acid is a chlorobenzoic acid that is benzoic acid in which the ring hydrogens at positions 2 and 5 are substituted by chloro groups. It is a chlorobenzoic acid and a dichlorobenzene.
一般的な説明
Needles (from water) or white powder.
空気と水の反応
Insoluble in water.
火災危険
Flash point data for 2,5-Dichlorobenzoic acid are not available; however, 2,5-Dichlorobenzoic acid is probably combustible.
純化方法
Crystallise the acid from water. [Beilstein 9 IV 1005.] Aromatic acid impurities (to <0.05%) can be removed via the (±)--methylbenzylamine salt as described for 2,4-dichlorobenzoic acid [Ley & Yates Organic Process Research & Development 12 120 2008.]